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Page1of74
Health and Safety Executive
The guide to safe use of power-operated paper-cutting guillotines
This is a free-to-download, web-friendly version of The guide to safe use of power-operated paper-cuting guillotines (Second edition edition, published 1999). This version has been adapted for online use from HSE’s current printed version.
Youcanbuythebookatwww.hsebooks.co.ukandmostgoodbookshops.
ISBN 978 0 7176 1707 4 Price £7.50
ThispublicationisproducedbythePrintingIndustryAdvisoryCommitteeandisaimedathelpingallthosewhoworkintheprintingindustry,includingemployers,employeesandsuppliers,toidentifythemaincausesofaccidentsandhazardsassociatedwithpower-operatedpapercuttingguillotinesandhowtoeliminatethehazardsandcontroltherisks.
Theguidancealsoexplainsthelevelofknowledgeandexperiencetheengineersneedandalsothetechnicalstandardsrelevanttobothexistingmachinesandsecond-handones.Italsogivesadvicetomanufacturersandsuppliersofnewmachines.
HSE Books
Page2of74
Health and Safety Executive
© Crown copyright 1999
Firstpublished1988
ISBN9780717617074
Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans(electronic,mechanical,photocopying,recordingorotherwise)withoutthepriorwrittenpermissionofthecopyrightowner.
Applicationsforreproductionshouldbemadeinwritingto:TheOfficeofPublicSectorInformation,InformationPolicyTeam,Kew,Richmond,SurreyTW94DUore-mail:[email protected]
ThisguidanceisissuedbytheHealthandSafetyExecutive.Followingtheguidanceisnotcompulsoryandyouarefreetotakeotheraction.Butifyoudofollowtheguidanceyouwillnormallybedoingenoughtocomplywiththelaw.Healthandsafetyinspectorsseektosecurecompliancewiththelawandmayrefertothisguidanceasillustratinggoodpractice.
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Members of the Printing Industry Advisory Committee (PIAC)
Nominated by the CBIMr D E Barker NewspaperSocietyMr G Cooper NewspaperSocietyMr J Fuller BritishPrintingIndustriesFederationMr G McNab ScottishPrintEmployersFederationMr B Purkis NewspaperPublishersAssociationMr W Stothard BritishPrintingIndustriesFederationMrs S Whittaker NewspaperPublishersAssociationMr I Wilcock BritishPrintingIndustriesFederation
Nominated by the TUCMr D Barker GraphicalPaperandMediaUnionMr T Gopsil NationalUnionofJournalistsMr M Griffiths GraphicalPaperandMediaUnionMr R A Hudspith GraphicalPaperandMediaUnionMr A Metcalf GraphicalPaperandMediaUnionMr D Spencer GraphicalPaperandMediaUnionMr P Taylor GraphicalPaperandMediaUnion
HSEMr A D Porter Chairman,HealthandSafetyExecutiveMr M D Wilcock Secretary,HealthandSafetyExecutive
Members of PIAC Guillotines Working Group
Mr N Bayley PiconLtdMr P Borsos EBGallon/PhaselecLtdMr M Brown OscarFreidheimLtdMr B Clarke HealthandSafetyExecutiveMr J Fairbrass Secretary,HealthandSafetyExecutiveMr J Fuller JetStationaryCompanyLtdMr R A Hudspith GraphicalPaperandMediaUnionMr G T Law SafetyAssessmentFederation(SAFed)/ZurichEngineeringMr R Lee HealthandSafetyLaboratoriesMr S B Longbottom HealthandSafetyExecutiveMr B Preston KalamazooGroupMr S Rickman HeidelbergGraphicEquipmentLtdMr M Ward PershkePriceServiceOrganisationLtdMr I Wilcock BritishPrintingIndustriesFederationMr M D Wilcock Chairman,HealthandSafetyExecutive
Health and Safety Executive
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Health and Safety Executive
ContentsPreface 7What is PIAC? 7Why does PIAC exist? 7
Introduction 8How to use this book 8
Section 1 - Machinery description: hazards and safeguards 10Hazards 10Knife 10Clamp 11Machinetable 11Backgauge 12Drivemachinery 12Operation 12Controls 12Two-handcontroldevices 12Backgaugehandwheel 13Types of safeguard 13Frontguards 13Activeopto-electronicprotectivedevices(AOPD)(photoelectricguards) 13Interlockingguards 17Fallingfingerguards 17Automaticsweepawayguards 17Body-pushguards 21Rearguards 21Safeguarding of ancillary handling equipment 22Pilelift/hoist 23Scissorlifts 23Joggersandauto-stackingtables 23De-stackers,re-stackersandturningunits 23
Section 2 - User requirements 24Introduction to section 24Maintenance and inspection records - logs 25Buying a guillotine 25Upgrading guillotines 26Locating and siting machines 26Commissioning inspections and tests 27Instruction manuals 27Training and safe working practices 28Startupprocedure 28Gauging 28Knifecleaning 28Knifechanging 29Routine maintenance, inspection and testing 30In-house daily/shift/after-knife-change maintenance checks 31Allmachineswithtwo-handcontrol 31ESPEs 32Interlockingguards 32Monthly/after-knife-change maintenance checks 32Sweepawayguards 32Interlockingguards 32Six-monthly inspection and check 33Engineer’s competency guide 33
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When not to wait six months 33Ancillary handling equipment 34Modificationsandservicing 34Safeworkingpractice 34
Section 3 - Engineer’s responsibilities and competence 35Legal requirements 35Competence 35Accreditation of inspecting engineers 35Assessment of competence 36Inspection and testing of guillotines 36Allmachines 36ESPEs 37Interlockingguards 37Sweepawayguards 37
Section 4 - Technical standards for existing machinery and the supply of second-hand machinery 39Introduction 39Guillotine instruction manual and log 40Technical standards 40Electricalsafetyandcontrols 40Gaugingpedal 40Two-handcontroldevices 40Programmableelectronicsystems 41Front guards 41ESPE 41Performancestandardsforpre-1985guillotines 41Performancestandardsforpost-1985guillotines 42Machineprimarycontrolelements 44Stoppingperformancemonitoring 45Overrundetection 45PositioningoftheAOPDrelativetothecuttingstick 46Interlocking guards 46Automatic sweepaway guards 46Brake and clutch design 46Hydraulic design 47Control valves 47Gravity fall 48
Section 5 - Additional information for suppliers of new machines 49Suppliers’ responsibilities 49Manufacturers’ responsibilities 50Conformity assessment 50New machines - harmonised standards 50
Appendices1 Contents of instruction manual 522 Sample logs 533 Guillotine safety checklists 584 Glossary 625 Extract from BPIF booklet Guarding of guillotines and trimmers 646 Extract from the HSE booklet Electro-sensitive safety devices for friction- clutch press brakes 67 7 Method for determining the position of the AOPD relative to the cutting stick 69
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References 71
Further information 74
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PrefaceWhat is PIAC?
ThePrintingIndustryAdvisoryCommittee(PIAC)wasformedinJuly1979toadvisetheHealthandSafetyCommission(HSC)onmattersconcerningtheprintingindustry.ThemembersofPIACarenominatedbytheCBIandtheTUCandappointedbyHSCtoworktogetherwithHSEtoadvisetheindustryonhealthandsafety.
Why does PIAC exist?
Everyyearpeopleareseriouslyinjuredworkingintheprintingindustry.Manyotherssufferillhealthwhichpreventsthemfromdoingtheirnormalwork.Almostallthesecasescouldbeprevented.
PIACisdeterminedtotakeactiontoimprovehealthandsafetyperformanceintheprintingindustry.AspartofthisprocessPIAChasdevelopedthisguidancebooktohelpthoseresponsibleforhealthandsafetyintheindustryunderstandtheirresponsibilitiesandtakethenecessaryaction.
Thisbookisinaseriesofnewhealthandsafetyguidanceforprinting.Theserieswillbedevelopedoverthenextfewyears.Theaimoftheseriesistohelpallthoseinprinting,includingemployers,employeesandsuppliers,toidentifythemaincausesofaccidentsandillhealthandtoexplainhowtoeliminatethehazardsandcontroltherisks.Everybookintheserieswillbeidentifiedbythelogoonthefrontcover.
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Introduction1 Power-operatedpaper-cuttingguillotinesarewidelyusedthroughoutthepapermanufacturing,conversion,printingandprint-finishingindustries.Seriousaccidentshavebeencausedbyknivesandclampsincludingamputation,bruisingandcrushing.Theseinjuriescontinuetooccurinsituationswheretheycouldeasilyhavebeenprevented.
2 Thisbookcontainspracticaladviceonthesafeguardingoftheseguillotines.Itwillhelpifyouuseguillotinesorhavearoleinthedesign,manufacture,supply,testing,examinationandinstallationofguillotinesandtheirsafeguards.Itgivesguidanceonlegaldutiesandprovidestechnicaladviceondifferentsafeguardingmethods,relevantstandards,maintenance,testing,andtraining.
How to use this book
3 Theadviceinthisbookisdividedintofivesections:
n Section1-givesinformationonmachineandsafeguardtypes,hazardsandaccidents;
n Section2-givesadvicefortheuser;n Section3-givesguidanceoncompetencies(ieacombinationoftechnical
knowledge,awarenessandexperience)thatshouldbeacquiredbyguillotineengineerssothattheycaneffectivelyfulfilltheirresponsibilities;
n Section4-givesinformationontechnicalstandardsforexistingmachinesandthosesuppliedsecondhand;
n Section5-givesinformationandadviceforthemanufacturersandsuppliersofnewmachines.
4 UsersshouldseeSection1foradviceon:
n thehazardouspartsofyourguillotineandassociatedhandlingequipment;n typesofsafeguardscommonlyused;n thechecksyoushouldmaketoensurethattheequipmentisadequately
safeguarded.
UsersshouldreadSection2foradviceon:
n theirlegalresponsibilities;n buyingaguillotine-whattolookforinsupplier’sliteraturetomakesurethe
intendedpurchaseissafetouseandcomplieswithlegalrequirements;n trainingemployees;n safesystemsofworkforknifechangingandcleaning;n maintainingtheguillotineandcarryingoutthenecessaryregularsafetychecks
onguardperformance;n selectingacompetentengineertocarryoutsix-monthlyinspectionsand
testing;n maintaininganup-to-datelogforeachguillotine.
5 Guillotine engineers/engineer surveyorswhocarryoutinspectionsandtesting,servicingorrefurbishmentofguillotines,shouldreadSection3foradviceon:
n theirlegalresponsibilities;n theirnecessarylevelofcompetence;n thecontentofthesix-monthlyinspectionandtestatpaper-cuttingguillotines.
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TheyshouldalsoreadSection4foradviceon:
n thetechnicalperformancestandardstowhichguillotinesshould complywheninspectedandtested.
6 Used guillotine supplierswhorunabusinesswhichrefurbishesmachinesforresaleorsimplysellonusedguillotinesintheUK,shouldreadSection4foradviceon:
n theirlegalresponsibilities;n thetechnicalperformancestandardsforsecond-handmachinesandthe
upgradingworknecessary;n thetechnicalstandardsneededtoworktowhenupgradingguillotines;n providinganup-to-datemaintenancelog.
7 Manufacturers and suppliersofnewguillotineswillfindadviceinSection4on:
n performancestandardsforexistingguillotines.
TheywillalsofindadviceinSection5on:
n theirlegalresponsibilities;n therelevantcurrentEuropeanStandards.
8 ThebookdoesnotrepeatguidancealreadypublishedseparatelybyHSE.RelevantpublicationsarelistedintheReferencesection.Youcanobtainup-to-dateinformationonHSEpublicationsfromHSE’sInfoLine.
9 ThisbookreplacestheguidancepreviouslycontainedinthePIACbookletSafety at power operated paper cutting guillotinespublishedin1988,ISBN0118854607andreprintedin1992.HSEwillcontinue,periodically,toreviewandrevisethisguidance.
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Section 1 Machinery description - hazards and safeguards10Guillotinesconsistofaknife,clamp,machinetableandbackgauge.Theknifeisdriventhroughthepaperstackontoasoftstrip,thecuttingstick,whichissetintothebedofthemachinetable.Powercanbeappliedtotheclamp,backgaugeandknifeinanumberofways.
Figure 1 Atypicalguillotinewithsafeguardingbymeansofanactiveopto-electronicprotective
device(AOPD)
Hazards
Knife11Knivesarenormallydrivenatareducingangleby:
n directhydraulicpower-theknifeisdrivendownbytheactionofahydrauliccylinder(s)andreturnshydraulicallyorbysprings.Controlisbyahydraulicvalve(s);
n directhydromechanicalpower-acrankisdrivenbyahydraulicmotorcontrolledbyvalvessupplyingoiltothehydraulicmotor;
n clutch-operatedmechanicalpower-theknifeispoweredfromacontinuouslyrunningflywheelviaacrankshaftfittedwithafrictionclutchandbrake.Knifecontrolisbyengagement/disengagementoftheclutchandbrakeinturn;
n directelectromechanicalpower-theknifeeccentricarmisdrivendirectlybyanelectricmotorandrotatesoncebeforeactuatingaswitchtocutoffpowerandapplyingthebrake.Knifecontrolisnormallyachievedbybrakingofthemotor.
12Contactwiththeknifeedgewhenitismovingandwhenitisstationarycanresultinseriousinjury,includingamputation.Thiscanbecaused,forexample,
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byinadequateguardingorfailureoftheknifetostopattheendofastroke.Accidentalcontactwiththeknifeedgeisgenerallypreventedbythepositionoftheclampwhichmovesinadvanceoftheknife,althoughpartoftheknifeedgecanbeexposedateithersideofthepaperstackifthestrokeisinterrupted.However,injurycanbecausedbyknivesexposedduringcleaning,changingandhandling.
An operator suffered amputation of part of his thumb when the paper-cutting guillotine he was using overran. He was retrieving a cut stack and was injured when the blade failed to halt on the upstroke and descended part way. This was caused by a failure to maintain the brake, and a fault which occurred on the overrun detection switch. The solenoid-operated safety bolt for the knife carrier was also defective. The brake defect, overrun switch fault, and safety bolt were all rectified when the machine was subsequently serviced.
Clamp13 Theclampholdstheworkintwostages:
(a) gauging-alignmentoftheintendedcuttinglinewiththefrontedgeofthe clamp,normallyachievedusingagaugingpedalwithdirectmechanical linkageoralowpressurebalancedhydraulicsystem; (b) cutting-thisrequiresgreaterclampingforceswhichareachievedby variablehydraulicpressure,directdriveusingatorquemotor,orbymanual operationoftheclamp.
14Most injuries at paper-cutting guillotines are caused by clamp descent during gauging.Atthisstagemovementisoftennotsafeguardedandthemanualnatureoftheworkmayrequiretheoperatortohandlework,suchasbusinesscards,neartheclamp.Topreventcrushinjuries,thegaugingforceshouldbelimitedandmaintainedatvaluesgiveninparagraph108.Descentoftheclampunderfullpowershouldbeguarded.
A paper-cutting guillotine operator suffered a crushed finger when it was trapped between the clamp and table. The operator was gauging and placed a block of paper on the table. The backgauge was too far back, he leaned forward to pull work out, intending to adjust the backgauge, and accidentally depressed the foot pedal, operating the clamp. The gauging force was excessive and as a result the operator was off work for four weeks.
15Lipson,orholesin,theclampfaceshouldbeavoidedtopreventanysheartrapsbetweentheascendingclampandknifeedgeonthereturnstroke.Holesshouldbecoveredbyplasticplugs,tapeorsimilarmeans.
While cleaning the clamp face of a guillotine, an operator’s foot slipped from the clamp pedal. The clamp returned upwards but his fingers were caught in the screw-adjustment holes. This caused amputation of part of the left index finger. Caps were subsequently provided over the screw-adjustment holes.
Machine table16Mostmachineshaveasolid,flattablealthoughincreasinglyairtablesareprovidedwhichreduceoperatorfatigueandcanhelptopreventmanual-handlinginjuriesbyreducingfrictionaldrag.Machineswithopeningtables,forexampleforwasteremoval,maypresentacrushingandentrapmenthazardasthetablecloses.Theseshouldbeeffectivelysafeguardedby,forexample,electrosensitiveprotectiveequipment(ESPE).
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17Handlingsystemssuchaspilehoistsandjoggingtablesmayalsocauseriskofinjuryifnotsafeguardedtopreventcontactwheninmotion,seeparagraphs42-47forfurtherdetails.
Backgauge18Thebackgaugecanbemovedeithermanuallyorunderpoweredoperationtothecorrectpositionforpapercutting.Manymachinesmaybeprogrammedsothatthebackgaugeautomaticallymovestothecorrectpositionforasequenceofcuts.Theinclusionofa‘pushout’orprogrammableejectionsettingavoidstheneedforoperatorstoreachbeneaththecuttingareaandhelpstoreducefatigueandupper-limbdisorders.
19Trappinghazardscanarisebetweenthetravellingbackgaugeandthefixedrearsidelaysorretractablesidelaysusedforrearloading.Theseshouldbesafeguarded.Thebackgaugemaymoveassoonaspowertothemachineisswitchedon.Thisshouldalsobesafeguardedby,forexample,interlockingorpositivecommandcontrolsystems.Atrappinghazardbetweenthebackgaugeandrearoftheclampcanoccurwhentheclampplateisremoved.Alwaysensurethatthebackgaugedriveisdisengagedbeforeremovingtheclampplate.
Drive machinery20Beawareoftheriskofinjurywherethereisexposeddriveandtransmissionmachinery,suchasvee-beltsandpulleys,chainandsprocketdrivesandintermeshinggearwheels,whichmaybeaccessedduringmaintenanceandrepairwork.
Operation21Guillotinescanoperateinoneofthreeways:
n singlestrokeormanualoperationwherethecontrolshavetobedepressedtoinitiateeachcutcycle;
n semi-automaticoperationwherethebackgaugeautomaticallymovestothenextprogrammedpositionbutthecontrolshavetobeoperatedbeforetheclampandknifemovementcanbeinitiated;
n fullyautomaticoperationwhereprogrammedrepeatstrokesofthebackgauge,clampandknifeareinitiatedbyaninitialsingleoperationofthecutcommandcontrols.
Controls22Controlsareprovidedonguillotineswhich:
n selecttheoperatingmode;n setthebackgaugeposition;n operatetheclampforgauging;n ‘strikeon’theclampandknife;n selectknifechange.
23Allcontrolsshouldbewithineasyreachoftheoperatorandtheirfunctionshouldbeclearlylabelledbyshapeandcolour,orbyreadilyunderstoodsymbols.
24Guillotine-mountedcontroldevicesshouldbeinaccordancewithEuropeanStandardEN60204:Part11998.Foot-operatedcontrolsareonlyappropriateforgauging.
Two-hand control devices25Atallmachinesitshouldonlybepossibletoinitiateacutcycle,ie‘strikeon’,byoperatingatwo-handcontrolwhichcomplieswithEN574:1997andEN60204:Part11998.Thismeansthat:
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n twoseparatehandcontrolsshouldbepositionedandrecessedsothatitisnotpossibletospanbothwithonehandonlyortooperatethemwithonehandandanotherpartofthebody;
n bothcontrolsshouldbeoperatedwithin0.5secondsofeachotherbeforethemachinewilloperate(exceptionally,onoldermachines,thismaybeupto1second).Wherethistimelimitisexceededbothcontroldevicesshouldhavetobereleasedbeforeoperationcanbere-initiated;
n ifonecontrolisreleased,bothcontrolsshouldhavetobereleasedandre-operatedbeforethemachinewilloperate;
n ifoneorbothcontrolsarereleasedbeforecompletionofthestroke,thebladeshouldeitherstopwithoutdelayorreturntotopdeadcentre.
26Two-handcontroldevicesalonearenotanacceptablesafeguardandmustbesupplementedbyfrontandrearguardingasdescribedinparagraphs29-41.
27Inexceptionalcircumstancesguillotinesmaybeusedwithasinglecontroldeviceifhigh-integrityallenclosinginterlockingguardsareprovidedwhicharearrangedwithcross-monitoreddual-channelcontrolusingtwoguard-positionswitchesoperatinginoppositemodes.Acompetentguillotineengineershouldbeabletoadvisewhetherthisisthecase.
Backgauge handwheel28Ifthebackgaugecanbemovedmanuallybyahandwheelandautomaticallyunderpower,makesurethatthehandwheeleitherdoesnotrotateduringpowerdriveorisofthesolidtypewithoutspokesorprojections.Agapof25mmshouldbemaintainedbetweentherearofthehandwheelandthemachinetable.
Types of safeguard
Front guard29Because in the majority of circumstances operators have to place their hands beneath the knife when positioning the work, a combination of a high-integrity method of safeguarding and a two-hand control device is needed. The various options are described in paragraphs 30-47.
Active opto-electronic protective devices (AOPD) (photoelectric guards)30Thisequipmentcommonlyprojectsacurtainofvisibleorinfraredlightacrossthefrontoftheguillotinewhichifinterrupted,forexamplebytheoperator’sarm,willsendasignalwhichstopsorreversestheknifeandclampdescentduringthecuttingcycle.
31 TheAOPDmachinecontrolcomponentssuchassolenoidvalvesandcontactors,clutchandbrakeconstitutetheoverallsafeguardingsystem(electrosensitiveprotectiondevice(ESPD)),seeFigure1,page10.OperatorsrelynotonlyonthecorrectfunctioningoftheESPD,butalsoontheperformanceofthebrake,clutchandothercontrolcomponentssoitisessentialthattheyareallproperlymaintained.
32Standardsrequiredatexistingmachines:
n theguillotineifsuppliednewbetweenapproximately1974and1987shouldhaveanESPDdesignedandoperatingwithfull-functionmonitoring;seeAppendices5and6.Thisistheloweststandardacceptablefortheseoldermachinesandsomemodificationssuchastheremovalofthefullyautomaticfacilitymaybenecessary.Acompetentguillotineengineerormanufacturer/suppliershouldbeabletoadvise;
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n iffirstsuppliedafter1987,thesafeguardingshouldmeetthestandardsnowdetailedinIEC/EN61496:Part21997andthepublicationHSG180,1(butseeparagraph5ofHSG180forguillotinessuppliedbetween1January1995andMarch1999withrespecttotheneedforriskassessmentforupgradingwork);
n iffirstsuppliedafter1January1995,theguillotineshouldbeCEmarkedandmeetthestandardsnowdetailedinIEC/EN61496:Part21997;EN1010:1999andguidancewithinthepublicationHSG180,1(butseeparagraph5ofHSG180forguillotinessuppliedbetween1January1995andMarch1999withrespecttotheneedforriskassessmentforupgradingwork).
33Toprovidesufficientprotectiontotheoperator,thepositionoftheAOPDiscritical.TheminimumcurtainseparationdistancedependsonthestoppingperformanceoftheknifeandthedetectioncapabilityoftheAOPD.MachinesfirstsuppliedbeforethedateofthispublicationshouldmeetthestandarddetailedinAppendix7.Itshouldnotbepossibletoreachoverorunderthecurtaintothecuttingstickfromanydirection,includingthesideofthemachinetable.ThepositionoftheAOPDforseveraltypicalformatsisshowninFigures2-6.NotethatmorerecentguillotinesmanufacturedinaccordancewithprEN1010mayhavereduceddistancesfortheAOPDposition:
n wheretheAOPDextendsdowntothemachinetableandthereisfixedsideguarding,theoutermost(lowest)frontbeamshouldbeatleast460mmfromthecuttingstickandlessthan38mmfromthetable(seeFigure2);
Figure 2 Photoelectroniccurtain(AOPD)extendingtomachinetableincombinationwithfixedguards
n whereclearanceisnotrequiredundertheAOPDhousings,thehousingsshould
eitherextendtothemachinetableorhavefixedguardsfittedbeneaththem.Inthisformat,theoutermostbeamshouldbepositionedatthetableedgeataverticaldistanceofnomorethan175mmandatahorizontaldistanceofatleast635mmfromthecuttingstick(seeFigure3);
Less than38 mm
At least 460 mm
Fixed guards
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Figure 3 UseoffixedguardswhereclearanceisnotrequiredbeneaththeAOPDhousings
n whereclearanceisrequiredbeneaththecurtainhousing,theoutermostbeamshouldnormallybelocatedbetween610mmand635mmfromthecuttingstickandnomorethan185mmabovethetable.Thehousingsshouldeitherbepositionedatleast610mmfromthepointwherethecuttingstickmeetsthesidelays(Figure4),orextensionstothemachinetableshouldbeprovidedtoincreasethedistancebetweenthetableedgeandknifeto850mm(seeFigure5);
n exceptionally,somenewerverylargeformatmachineswithauseablepileheightgreaterthan185mmmayhavetheoutermostbeamlocatedbetween610mmand700mmfromthecuttingstickandnomorethan205mmabovethetable.Anadditionalbeammustbeprovidedbetween400mmand550mmfromthecuttingstickandbetween0mmand205mmabovethetable(seeFigure6);
An operator had both hands amputated above the wrist when using a guillotine to cut slips of card for a wallpaper sample book. The guillotine was being used in fully automatic mode. It was found to be possible to reach the cut area beneath the lowest part of the AOPD without interrupting it.
n similarly,guillotineswithanautomaticcuttingsequencemustalsohavebeenprovidedwithanadditionalbeambetween400mmand550mmfromthecuttingstickandbetween0mmand205mmfromthemachinetable(seeFigure6).
An operator was using a guillotine on the automatic setting for cutting labels. The machine had been modified for import into this country and a spacer had been added to bring the AOPD housing further from the blade. This enabled a tall person to approach the blade without breaking the curtain. The operator amputated the tip of the middle left-hand finger when adjusting the position of a timber weight on the paper stack without breaking the curtain.
Fixed guard
Fixed guard
Outmost beam and edge of machine tableat least 635 mm from cutting stick
This distance maybe less than 635 mm
Not more than 175 mm
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Figure 4 PositionofAOPDhousingsandoutermostbeamwhereclearanceisrequiredbeneaththe
housings
Figure 5 UseofextensionstothemachinetablewhereclearanceisrequiredbeneathAOPDhousings
Figure 6Positionofadditionalbeamforlargeformatmachines
At least 610 mmNot less than 610 mm
Housing to be aslow as practicable
Not more than185 mm abovemachine table
At least 800 mm
At least850 mm
At least635 mm
Not morethan 150 mmExtension
table
Area admissiblefor additional
ESPD
Front of tableCuttingplane
400 mm
550 mm
205
mm
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Interlocking guards34 Interlockingguardspreventaccesstotheclampandbladeareawhenclosed.Correctlyfunctioninginterlockingguardsshouldoperatesothat:
n whenintheclosedposition,itisnotpossibletoreachunder,overoraroundthesidesoftheguard;
n strikingonisonlypossiblebyoperationofsynchronoustwo-handcontrolswiththeguardclosed(seeparagraphs25-27);
n whenopened,theinterlockpreventspoweredoperationoftheknifeandclamp.Thisisnormallybymeansoftwoseparatecam-operatedsafetypositionswitchessettooperateinopposingmodes.Inotherwords,ifoneswitchfails,theguillotinewillnotoperate;
n ifanattemptismadetoopentheguardduringastroke,theclampandknifeshouldeitherretractorstop,ortheguardshouldbelockedintheclosedpositionuntilthestrokeiscompleted,seeFigure7.
Figure 7 Guillotinewithaninterlockingguard
Falling finger guards35Veryoldmachinesweresometimesprovidedwithasystemofinterlockedfallingfingerguards.Eachfingerwasmountedonaninterlockedsteelbarandindividuallyhingedoutwardssothattheywouldtakeuptheprofileofthework.Thisarrangementdoesnotprovidesufficientprotectionandshouldbereplacedbyanenclosinginterlockedguardorequallyeffectivemeans. From the date of this publication it is no longer acceptable for machinery to be guarded in this way.
Automatic sweepaway guards36Automaticsweepawayguardsfoundoncertainoldermachinesaredesignedtopushtheoperator’shandawayfromthedangerareaastheclampandknifedescend,seeFigure8.Theyarenotacceptableonnewmachinesunderanycircumstances.From the date of publication of this book, guillotines with automatic sweepaway guards new or second hand should not be supplied or sold on in the UK.
Interlocking guards
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Figure 8 Guillotinewithsweepawayguardinextendedposition.
Note: side guards omitted for clarity
The operator of a 32 inch (813 mm) paper-cutting guillotine fitted with a sweepaway guard and two-handed control was seriously injured when the blade repeat cycled and amputated eight fingers and one thumb. The bolt releasing mechanism was not properly adjusted and the bolt was not interlocked.
An operator was removing paper after completing a cut when the knife descended and amputated the tip of his left-hand middle finger. The machine was fitted with a sweepaway guard which extended to 15 inches (381 mm) and two-hand controls. It was concluded that the knife descended under gravity due to brake failure. The hydraulic clamp actuated the sweepaway device but there was no direct interlocking between the knife and the sweepaway device.
An operator lost the tips of two fingers when using a 1970 guillotine fitted with a sweepaway guard. The brake attached to the motor driving the movement of the blade did not operate due to a loose retaining bolt which had become loose and jammed the brake open, allowing continued downward movement of the blade from top-dead-centre. There had been no preventative maintenance for the machine which had been consistently overrunning top-dead-centre.
37 Whereexistingmachinesarestillinuse,itisessentialthatthecorrectextensionofthedevice,clutchandbrakeperformancearemaintained,seeFigure9.Machinesshouldbeupgradedinaccordancewiththefollowingchecklistsothat:
n themainguardbarmovesforwardatleast500mmfromthefrontoftheclamp;
n theguardisinitsfullyextendedpositionbythetimetheclamphasdescended50mmfromitstopposition,unlesstheguardoperatesonknifemovementinwhichcaseeithertheguardisfullyextendedwhentheknifehasdescended50mmandtheclampprecedestheknifebylessthan14mm,orthegaugingpedalisinterlockedsothatithastobefullydepressedbeforetheknifecanmove;
n themovementoftheguardbarisasnearhorizontalaspossible;
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n themaximumheightoftheguardbarabovethetableisnotgreaterthan 180mmatthelowestpointofsweep;n theguardbarisatleastaslongastheclamp;n additionalguardbarsatcentresnotgreaterthan100mm(seeFigure9)have
beenprovidedtopreventaccessover/throughtheguardusingrobustmaterialwhichhasnotweakenedthemainbarbythemeansoffixing(egwelding);
n sideaccesstothedangerzoneispreventedwhentheguardisextendedbymeansofsidetablesorfixedguardsmanufacturedtothedimensionsshowninFigure9;
n wheremeanshavebeenprovidedtodisconnectthesweepawayguardlinkageduringknifechange,unguardedoperationoftheknifeandclampispreventedbyinterlockingtheguardwiththetwo-handcontrolandclutch,forexamplebymonitoringtherotationalmovementoftheguardcrankshaft;
n theintegrityoftheelectricalcontrolsystemmeetsIEC/EN61496:1997.Thismaynecessitatecompleterenewaloftheelectricalcontrolsystem;
n thecontrolcamsandassociatedswitchesarearrangedtopreventsinglecomponentfailuregivingrisetodanger.Thiscanbeachievedwithadual-channelsystemwithonepositivelyandonenegativelyoperatinglimitswitch;
n two-handcontrolsarefittedwhichmeetthestandardsdetailedinEN574:1997.
38Ifasauseryouhaveanydoubtsaboutthesepoints,contactthecompetentguillotineengineerwhocarriesoutyoursix-monthlyinspectionsandtests.
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250
mm
85 m
m
85 m
m
100
mm
180
mm
R59
0 m
m
580
mm
700 mm 920 mm
785
mm
700 mm330 mm
300 mm
790
mm
1050 mm
100
mm
R22
5 m
m
20 x
20
x 4
mm
stee
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Infil
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Det
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ure
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spec
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Body-push guards39These devices are no longer an acceptable means to safeguard guillotines and machines provided with them should already have been withdrawn from service. Prosecution may result from the operation of guillotines with this type of device.
Figure 10 Guillotineprovidedwithabodypushdeviceinextendedposition.Thesemachinesshouldno
longerbeinuse
Rear guards40Safeguardingshouldbeprovidedtopreventaccesstotherearoftheclamp,backgaugeandknife.Thisisnormallyachievedbyasystemoffixedbarrierswithaninterlockedaccessgateorfixedorinterlockedtunnelguardsattachedtotherearofthemachinetable.BSEN294:1992providesguidanceonreachdistances.Accesstotherearoftheknifeandclampcannotbesafeguardedsimplybyposition,ieagainstthewall.
41Rearsafeguardingshouldbeinstalledsothat:
n fixedguardsdonothinderknifechangingandlubrication;n wheninterlockedrearguardsorgatesareopened,poweredoperationofthe
knifeandclampisprevented;n wheretherearetrapsbetweenthemovingbackgaugeandotherfixedparts,
includingtheopenguard,theguardisinterlockedwithpowertothebackgaugemotor;
n wherebackfeedingisnecessaryinthecaseofverylargeworkorautomatedpaperhandling,fixed,interlockedguardsorESPEsareprovided.Theseshouldalsopreventaccesstoanyautomaticclampingarrangementsandbepositionedsothattrapsarenotformedbythemovementofthebackgaugeorpoweredsidelays;
n whereESPEsarefitted,theyareofthesameintegrityasthoseforfrontguardsandthelowestandoutermostbeamsarenotmorethan38mmabovetherearsidelays,andareatleast635mmfromthenearesttrappingpoint.
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Figure 11 Fixedguardingatrearofguillotine
Safeguarding of ancillary handling equipment42 Alargenumberofmanualhandlinginjuriesoccurtooperatorsofpoweredguillotineseveryyear.AsuitableandsufficientmanualhandlingassessmentmadeinaccordancewiththeManualHandlingRegulations19922willidentifyanyneedformechanicalhandlingaidssuchaspilelift/hoists,scissorlifts,joggers,stackersandturningunits.TheuseofthisequipmentisencouragedbyPIAC.
43Suchequipmentwillalsoneedtobeproperlysafeguardedandmaintained.Liftingequipment,whichwillincludepilehoistsandscissorlifts,shouldbesubjecttothoroughexaminationaspartofanexaminationschemeinaccordancewiththeLiftingOperationsandLiftingEquipmentRegulations1998.3
Figure 12 Varioushandlingequipmentincludingpilehoist,joggerandde-stacker/re-stacker
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Pile/lift/hoist44Wherefitted,thisequipmentshouldbeinstalledsothat:
n additionalpileliftsandhoistssitedatthesideofaguillotineareprovidedwithhandprotectionbetweenthelift/hoistandtheguillotine,normallyintheformofafixedplatetothefrontorside;
n safeworkingloadsareclearlymarked;n thehazardouszoneismarkedonthefloorbymeansofyellowandblack
hatchingtoextendatleast300mmbeyondthedangerarea.
Scissor lifts45ScissorliftsshouldhavebeendesignedandmanufacturedinaccordancewithBS5323:1980andinstalledsothat:
n thesafeworkingloadhasbeenmarked;n trapsbetweenscissorarmshadbeenpreventedbysuitableflexibleguards;n sensitiveedgesortripflapshadbeenfittedtotheundersideoftheplatform
wheresheartrapsarecreated.Checktheseregularly;n asuitablemechanicalscotchisprovidedwhereaccessbeneaththeraised
platformisrequired.
Joggers and auto-stacking tables46 Thisequipmentshouldhavebeeninstalledsothat:
n handplateshavebeenprovidedwhensitednexttothesideoftheguillotine;n whereairpresserrollersarefitted,anAOPD(type2)isfittedtothefrontofthe
tabletogetherwithsensorsontherollermechanismtohaltforwardmovementoninterruption;
n accesstotherearoftheequipmentisprevented,forexamplebyfixedorinterlockingguarding;
n joggersarefirmlyfixedtothefloorwithsuitablefoundationfixingsorwheremobilebydesign,meansareprovidedtomaintainaminimumseparationdistancebetweentheguillotineandadjacentequipment.
De-stackers and re-stackers and turning units47 Thisequipmentshouldbeinstalledsothat:
n thereare‘allenclosing’1800mmhighfixedbarrierswhichifaccessisrequiredareprovidedwithaccessgatesthatareelectricallyinterlockedwiththeoperatingcircuitsofboththeguillotineandthehandlingequipment;
n exposedstackingpoints,whereaccessispossible,haveAOPD(type2)protection;
n ascendinganddescendingtableshaveprotectionatthebasebymeansoftripdevicesorpressure-sensitivestripswherethereisariskofentrapment;
n stackliftunloadingandloadingsystemshavethehazardouszoneonthefloorbelowthelifting/loweringareamarkedwithyellowandblackhatchingtoextendatleast300mmbeyondtheloading/unloadingpalletarea;
n thepalletguideplateisfirmlyfixedtothefloor.
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Section 2 User requirementsIntroduction to section
48Asauserofaguillotine,youneedtomakesurethatyoucomplywithanumberoflegalrequirements.Thesearesummarisedintheboxinsert.Theinformationwithinthissectionwillprovideyouwiththepracticalguidanceneededtoensurecomplianceisachieved.
TheSupply of Machinery (Safety) Regulations 1992imposedutiesonmanufacturers,suppliersandimportersofnewandsubstantiallyrefurbishedmachineryandareintendedtoprovideprotectionforusers.Theybecamecompulsoryasfrom1January1995.SeeBuying new machinery4forfurtheradvice.
TheManagement of Health and Safety at Work Regulations 19925includedutiestoensurethat:
n ariskassessmentismadewhichidentifiesallhazardsandtheriskofharmassociatedwiththeuseofaguillotineandancillaryequipment,includingdangerouspartsandtaskssuchasknifechanging;
n controlmeasures,suchasESPEsandsafeworkingprocedures,areputintoplacetomakesurepersonnelarenotharmed;
n employeesaregiventrainingandinstructionintheuseofguillotinesandancillaryequipment;
n controlmeasureswhichincludesafeguardingandtrainingareproperlyimplementedandmaintained.
TherequirementsoftheProvision and Use of Work Equipment Regulations 1998 (PUWER 98)6includedutiestoensurethat:
n dangerouspartsofguillotinesandhandlingequipmentaresafeguarded;n controlsandcontrolsystemsareunambiguous,reliableandperformallthe
tasksnecessaryforsafeoperation,n egprovisionofemergencystopandothercontrols;n guillotinesaremaintained.Thismeansperformingthedailychecksdescribed
inthissection(andrecordingtheresultsinamaintenancerecordorlog,whereprovided);
n guillotinesareinspectedbyacompetentpersonatsuitableintervals(detailedlaterinthissection);
n maintenanceandinspectioncanbecarriedoutsafely,n egadequateworkingspaceatelectricalcabinets;
n equipmentcanbeisolatedfromtheelectricalsupply.n Aproperlyearthedelectricalsupplyisolatorshouldbeprovidedbyusers
adjacenttothemachine;n recordsofinspectionsarekept.SeeAppendix2fordetailsofasample
maintenancerecord/log;n equipmentsoldonisaccompaniedbythemaintenancerecord/log;n newequipment(includingsecond-handequipmentfromoutsidethe
EuropeanEconomicArea(EEA))conformswithproductsafetylegislation,egSupplyofMachinery(Safety)Regulations1992;
n fullinstructionandtrainingisgiventooperators.
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Maintenance and inspection records - Logs
49TohelpyoucomplywiththerequirementsofPUWER98,sampleformsforrecordingtheresultsofin-housedailyandmonthlychecksandasampleloghavebeenincludedinAppendices2and3.Thelogcontainssectionsforrecording:
n nameandaddressofmanufacturer/agent;n machinemodelandtypeincludingserialno;n nameandaddressofuser;n resultsofcommissioningexaminationsandtestsn (seeparagraph61);n technicaldetailsofallmechanicalandelectricalmodifications,n thedateundertakenandbywho;n allreportsbycompetentengineers/surveyors;n detailsofservicingundertaken;n datesoldandtowho;n namesandaddressesofsubsequentsuppliersandusers;n technicaldetailsofsafety-relatedpartsofthecontrolsystemintheformof
diagrams,schematicdrawings,etc;n allavailabledetailsofprogrammableelectronic-baseditemssuchassoftware
listings/versions.
50 Itisstronglyrecommendedthatyoukeepsuchalogforexistingmachines.Theguillotinelogprovidesyou,theenforcingauthority,yourinsurancecompany,inspectingorganisations,engineersandprospectivepurchaserswithevidencethattheguillotinehasbeenproperlymaintained.Bymakingsureyoukeepituptodatewiththeaboveinformation,itwilldemonstratethatdaily,monthlyandsix-monthlyinspectionsandtestshavebeencarriedoutandthatanymanufacturer’ssafetymodificationshavebeenimplemented.Remember, you are legally required to keep records of inspection.
51 Theinformationwithinalogcanbeessentialforcontinuedsafeoperationoftheguillotine.Thisinformationshouldcomewiththemachineregardlessofwhetherneworsecondhand.Queryanymachinethatcomeswithoutthispaperwork.
Buying a guillotine
52Beforeyoumakeapurchase,tellthesupplierwherethemachinewillbeused.
53Askthesupplierthefollowingquestions:
n Towhatstandardsistheguillotinemanufactured?n Whatsafeguardingsystemisprovided?n Whathasbeendonetoeliminatetheriskofelectricshockparticularlyduring
maintenanceworkwhencoversorcontrolpaneldoorsmaybeopen?n Aretherepossiblerisksfromothersourcesofenergy,suchashydraulicor
pneumatic?n Willyousupplymewithacurrentlog(ortheinformationtocompleteone)and
machineinstructionmanualincludinginformationoninstallation,maintenance,cleaning,andbreakdownprocedures?
n Willyouprovideorarrangeforthefirstsix-monthlyinspection?
54 Itisgoodpracticeforthesupplierormanufacturertohaveserviceback-uporahelpline.Youmightcheckwhatisinplacebeforeyoubuy.
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55Onbuyingtheguillotinemakesurethat:
n anup-to-date,completemachinelogandinstructionmanualisprovided;n unlessitisasecond-handmachinewhichwasfirstsuppliedbefore1January
1995,ithasaCEmarkaffixedandacopyoftheECDeclarationofConformityhasbeenprovided;
n thesupplierhasexplainedwhatthemachineryisdesignedtobeusedforandwhatitcannotbeusedfor;
n aninstructionmanualhasbeensuppliedwhichincludesinstructionsforcleaning,knifechanging,assembly,installation,commissioning,adjustmentandmaintenance;
n theinstructionmanualisclearlyunderstandableandlegible;n informationhasbeenprovidedaboutanyremainingrisksfromthemachine,
andtheprecautionsyouneedtotaketodealwiththem,egrecommendedsafesystemsofwork.Thesemayincludeelectrical,hydraulic,pneumaticorthermalhazards;
n anywarningsignsarevisibleandeasytounderstand;n duringcommissioningcomprehensivetrainingisgiven;n youthinkthemachineissafe;n anyearlyconcernsaboutthesafetyofthemachinearereportedtothe
supplier.
56NeverassumethatmachineryissafejustbecauseithasCEmarking.YouneedtocarryoutariskassessmentinaccordancewiththeManagementofHealthandSafetyatWorkRegulations1992andcheckthatthemachineissafeguardedproperlyasrequiredbytheSupplyofMachinery(Safety)Regulations1992andPUWER98.Theleaflet5 steps to risk assessmentprovidesgeneraladvice.7
Upgrading guillotines
57Guillotinescurrentlyinusemayrequireupgradingtomeetthestandardsdetailedinthisbookandacompetentengineermayadviseyouofthisatthetimeofthesix-monthlyinspectionreferredtoinparagraph94.Itisessentialthatthesemodificationsareonlyundertakenbycompetentguillotineengineers.Guillotinecontrolsystemsandprotectivedevicesaresophisticatedsystemsandaccidentscanresultiftheyaretamperedwithbypeoplewithinsufficientknowledgeorunderstandingofthemachine.GuidanceoncompetenceisgiveninSection3ofthispublication.
58 Guillotineusershavearesponsibilitytoensurethatthemanufacturer’s/supplier’sinstructionmanualandlog(whereprovided)arekeptavailable,bothfortheuseofoperatorsandforthoseundertakingroutinemaintenance.Suchmanualsandlogsshouldaccompanythemachinethroughoutitsworkinglife.
Locating and siting machines
59Carefulconsiderationshouldbegiventothepositionchosentositeaguillotine.Operatorsneedsufficientworkingspacetoallowsafeoperationanduseoftheguillotinecontrolsandassociatedequipmentsuchaspilehoistsandjoggingtables.Congestedworkareascancreateadditionaltrappingandslip/triphazards.Makesureyou:
n allowsufficientspacetoensureefficientthroughputofwork;n planfortheexpectedquantityofworkinprogressanddefinesuchareasby
crosshatchedlinesmarkedonthefloor;n positionmachinesawayfrommainthoroughfares.
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60Rememberthataccesswillberequiredformaintenanceandcleaningattherearandsidesofthemachine.Wherepracticablethedistancearoundthemachineshouldbeatleast0.5m.Forexample,whereaccesstoelectricalsystemsisrequiredandliveconductorsarewithinreach,theworkingspacedimensionsshouldbeadequatetoallowpeopletopullbackawayfromconductorswithoutrisk,andifpeopleneedtopassoneanother,todosowitheaseandwithoutrisk.Asaguide,thedistancebetweenlivepartsandafixedobstructionsuchasawallshouldnotbelessthan1m.
61Whenamachineismovedtoanewlocation,whetherinthesamebuildingorelsewhere,itshouldbeinspectedandtestedbyacompetentguillotineengineerafterre-installationasperthesix-monthlyinspection.
Commissioning inspections and tests
62Followingtheinstallationofaneworsecond-handmachine,aninspectionandanynecessarytestsshouldbecarriedoutbyacompetentguillotineengineerwhohasaccesstoallthemanufacturer’s/supplier’sinformationrelatingtothemachine.Asktheengineerifhehasincludedthefollowingitemswhencarryingouttheinspection:
n thefrontandreartableguardscomplywiththeguidanceinthisbook;n anybrakesandclutchesareadjustedtothemanufacturer’sspecification;n thestoppingperformanceiscorrectandtheoverrundetectionsystemsare
correctlyset.
63Inaddition,wheretheguillotinehasESPE,askthefollowing:
n Whatisthemeanoverallstoppingperformanceoftenreadings?n WhatistheminimumobjectdetectioncapabilityoftheAOPD?n WhatisthedistancefromthecuttingsticktothenearestpartoftheAOPD?
64Ensurethatthesemeasurementsarecheckedforcompliancewiththoseprovidedbythemanufacturerandthatadjustmentsaremadeasnecessary.
65 Whenamachineisre-installedatanewlocationwithinyourpremises,aninspectionandtestshouldbecarriedoutasforthesix-monthlyinspection.Itisstronglyrecommendedthatyoudonotacceptamachineunlesstheresultsofthesetestshavebeenrecordedinamachinelogandthatthesehaveinturnbeensignedbythesupplier/engineer.
66Beawarethatmanufacturersandsuppliersofbothnewandsecond-handmachinesshouldensurethatappropriatetestingiscarriedoutontheirproductssothatthestandardsdescribedinSections1,4and5ofthispublicationaremet.Makesureyouaregivenrelevantinformationaboutsuchtestssothattheguillotinecanbeproperlyusedandmaintained.
Instruction manuals
67Thefollowinginformationshouldbeprovidedintheformofaclearlywritteninstructionmanual:
n theinstallationprocedures;n thepurposeandoperationofthecontrols;
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n thecorrectmethodsofoperationandmaintenance;n restrictionsonuseincertainenvironments,egpotentiallyflammable
atmospheres.
68FulldetailsofthecontentsofthesemanualsisgiveninAppenidx1.
Training and safe working practices
69Makesureallguillotineoperatorsarecompetent.Theyshouldhavebeentrainedtounderstand:
n risksarisingfromtheuseofthemachineincludingspecificoperationssuchasknifechangingandknifecleaning,etc;
n theoperationofcontrolsandsafeguards;n theimportanceofsafeworkingpractices;n howtocarryoutdailychecksonthemachine.
70Forgeneraladviceontrainingstaff,seethePIACopenlearningpackage.8Printingcolleges,safetytrainingorganisationsandguillotinesupplierscanoftenprovideformalshortcourses.Guillotineoperatorsshouldreceivetrainingontheaspectsdetailedinparagraphs71-93and101.RememberthattheEmploymentofYoungPersons(Safety)Regulations19799requiresspecificriskassessmenttotakeaccountoftheadditionalriskarisingfromtheinexperienceandimmaturityofayoungperson.
Startup procedure71Oncompletionofthedailychecksdetailedinparagraphs85-90,ifthemachineisingoodworkingorderoperatorsshouldsignthelog.Operatorsshouldreportanymachinethatfailstomeettheperformancestandardtothemanagementwhoshouldthenlockoffandlabelthemachineuntilthefaulthasbeeninvestigatedandremedied.
72 Operatorsshouldnotoperateamachinewithasignificantdefect.Detailsofanydefectorabnormaleventshouldberecordedinthelog,forexamplefailureoftheoperationoftheAOPDorunprovokedlockout.
73 Operatorsshouldalsocheckthattheknifedoesnotprotrudebelowthebottomoftheclampwhenitreturnstotop-dead-centreoncompletionofatrialstroke.
Gauging74Operatorsshouldbetrainedtousethefollowingprocedureswhengauging:
n alwayscheckthatthumbsandfingersareclearbeforebringingtheclampdown;
n wherefitted,usetheopticalcuttinglineindicatortocheckthatitissafetodepressthegaugingpedal;
n expelairfromthepileonlybyasingleoperationoftheclamp,notbyrepeateduseoftheclamp,hands,orblocksofwood.Toremoveair,providejoggingtablesoraprogrammedclamp/no-cutfacility.
Knife cleaning75Certainoperationswillleadtotheregularneedtocleantheknifewithsolvent,forexamplewherecuttingoflabelsleadstoabuildupofadhesive.
76Operatorsshoulduseasafesystemofworkasrecommendedbythemanufacturer.Ifnorecommendedsystemisavailableyoushould:
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n eithermanually(withthepowersupplyisolated)orinknifechangemode,movetheknifetobottom-dead-centresothatitisincontactwiththecuttingstick;
n usingaholdercontainingthesolventsoakedcloth,wipetheknife.Donotholdthecleaningclothdirectlyinyourhand;
n cleaneachsideoftheknifefromtherespectivesideofthemachine-avoidreachingbeneaththebladeandupwards.
Knife changing77 Knifechangingisaparticularlyhazardousoperationandspecialprecautionsarerequiredtopreventinjury.Alwaysstressthedangerstothoseperformingthework.Only trained competent and authorised personnel should undertake this task.
An operator suffered a severe cut when a new guillotine blade he was installing fell onto his foot. He had removed the new blade from its case and placed it onto a table to insert the carrying handles. As he did this the blade slipped and fell. The operator had failed to clear the table of other material or to allow sufficient working space for this task to be undertaken safely.
78Whereprovidedyoushouldfollowthemanufacturer’sinstructions.Ifnoinstructionsareavailableyoushoulddevelop,inconjunctionwithacompetentengineer,asafesystemofwork.Thiswilldependonthemakeofmachinebutshouldincludethefollowingprinciples.Makesure:
n theproceduretakesaccountofthefactthattheAOPDmaynotbeactiveonolderguillotinesduringtheknife-changeoperation;
n theareaisclearofpalletsandstoredmaterials;n everyknifehasitsowncase/box(ieoneforboththenewandoldknives);n thatboththeknifecases/boxesandholderaremaintainedingoodconditionso
thatthebladeedgeisproperlyprotectedandtheknifecanbeheldsecurely;n thereisasecure,clearsurfacetoputtheknifecase/boxon-normallythe
machinetable;n youremovethesidelayswherethiswillassistinkniferemoval;n thattheknifedoesnotoverhangtheedgeofthetable;n youhaveallthecorrecttoolsincludingtheknifeholder;n otherpersonsareexcludedfromtheknife-changeareabysignsand
barriers(unlessthelargesizeofthekniferequirestwotocarryit.Inthesecircumstances,itmaybepossibletoslidetheknifeontoanadjacenttableatthesameheightwithouthavingtoliftit);
n theknifeisexposedfortheleastpossibletime;n knifesarenotrestedorplacedonpaperstacks;n themovementoftheknifeislimitedtotheshortestdistancepossible;n thecuttingstickisreplacedwhentheknifeisout;n a‘dailycheck’takesplaceafteraknifechange.
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Figure 13 Twotypesofknifeholder
79Therearetwotypesofknifeforcuttingpaperforprintwork:steelortungstencarbide.Thelattermaygivealifeincreasebetween10and25times-withlessneedforsharpeningandchanging.Alwaysuseagoodqualityknife.Donotuseabluntknifeforprolongedperiodsasthiscancausetheknifetoshatter,damagethemachineandproducepoorqualitywork.Areputablesupplierforregrindingknivesshouldbeusedwhowillgiveyouadvancewarningshouldtherebeaproblemwiththeknife,egbowing,wearorover-grinding/end-of-knifelife.
Routine maintenance, inspection and testing
80Varioussafeguardingequipmentmaybeusedtoprotectguillotineoperatorsfromriskofinjury,anditisessentialthatthesearemaintainedinworkingorderandcheckedtoensureproperfunctioning.
81Allguillotinesshouldbesubjecttodailyandmonthlychecksandsix-monthlyinspectionsassummarisedinTable1.Thesamechecksshouldalsotakeplaceafterknifechanging.
BladeBlade
Full blade protection
Side view ofknife holder
Side view ofknife holder
Knife holder handle
Tip protection
Knife holder handle
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Table 1 Summaryofwhoshouldcarryoutthechecksandinspectionsappropriatefordifferent
safeguardarrangementsandatwhatfrequency
82YoucanrecordtheresultsofeverycheckandinspectionusingthesampleformsgiveninAppendix2.Carryoutdailyormonthlychecksusingtrained,competentoperatorsandensurethatmanagersmonitorthatthecheckstakeplace.Thechecklisthasaplaceformanagerstosigntoconfirmthis.Iftheguillotinefailsanypartofthecheckortest,reportthistomanagementwhoshouldimmediatelytakeitoutofserviceandhaveitinspectedbyacompetentguillotineengineer.
83Six-monthlyinspectionsofguillotines,includingallsafetycomponents(egbrakes,clutches,interlocks,switchesandcams),stoppingperformanceandgaugingpressureneedtobecarriedoutbyacompetentguillotineengineer/engineersurveyor.Routineservicingandmaintenanceworkmaybecarriedoutatthesametime.
In-house daily/shift/after-knife-change maintenance checks
84 Thefollowingseriesofmaintenancechecksshouldbecarriedoutbyacompetentoperator:
All machines with two-hand control85Theguillotineshouldstrikeonwhenyouoperatebothcontrolsindependentlywithin0.5seconds.
86Theguillotineshouldnotstrikeonwhenyou:
n operateeachcontrolandresetitinturn;n operateonecontrolfollowedbytheotherafterashortdelayof2-3seconds;n repeatthelasttestwithoperationofcontrolsinreverseorder;n operatebothcontrolswithin0.5secondsbutreleaseonemid-waythroughthe
strokeandthenre-operateit;n repeatthelasttestbutreleasetheothercontrol.
Guillotine
safety
device
Daily
shift
check
After
knife
change
Monthly
maintenance
check
Six-monthly
inspections
Interlocking Operator Operator Operator Guillotine
engineer/
engineer
surveyor
Photoelectric Operator Operator Notapplicable Guillotine
engineer/
engineer
surveyor
Sweepaway Operator Operator Operator Guillotine
engineer/
engineer
surveyor
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ESPEs87Withthepoweronbuttheguillotineatrest:
n checkAOPDstatuslights;n insertthemanufacturer’srecommendedtestpieceintothecurtainandpassit
slowlydownthecurtainwiththetestpiecedirectedtowardsthecuttingstickatthreepositions-ateithersideadjacenttoeachhousingandinthecentre.Thetestlightshouldilluminatewheneverthecurtainisinterrupted;
n whereAOPDstatuslightsarenotfitted,performtheabovetestwhileasecondpersonmakesrepeatedattemptstostrikeon.Nomovementoftheknifeorclampshouldoccurwhilethetestpieceisinterruptingthecurtain;
n initiateastrokeandmovebodyforwardtointerruptthecurtainwhilekeepingyourhandsonthetwo-handcontrol.Theknifeandclampshouldcometorestorreversewithoutanydelay.Do not attempt to thrust arm through the AOPD guard towards the blade;
n checktheoperationofthetwo-handcontrolinaccordancewithparagraphs85and86.
Interlocking guards88Wherethereisanautomaticlockingarrangement:
n strikeonandapplyalightupwardforcetocheckthattheguarddoesnotopen.
89Wherethereisnolockingarrangement:
n checkthestoppingefficiencyoftheknifebyopeningtheguardatmid-strokeoftheknifefirst,andthentheclamp.Eachshouldcometorestwithoutanyapparentdelay.
90Wherethereisasingle-controldeviceandtheinterlockingguardhastobeheldclosedagainstspringpressuretoinitiateastroke:
n operatecontrolandthencloseguard.Theguillotineshouldnotstrikeon;n releasethecontrolandre-operatewiththeguardclosed.Theguillotineshould
strikeon;n withtheguardstillclosed,operatethecontrolbutreleasetheguardbeforethe
knifereachesbottom-dead-centre.Theknifemotionshouldceaseorreverse.
Monthly/after-knife-change maintenance checks
Sweepaway guards91Checkthat:
n themainguardbarextendsatleast500mmbythetimetheknifeorclamphasdescended50mmandthattheguardbarisnomorethan180mmfromthetableatthelowestpointofsweep;
n theoperationofthetwo-handcontrolisinaccordancewithparagraphs85and86.
92Inspecttheguardlinkagesforwearatpivotpoints,pinsandmountings.
Interlocking guards93Checkthat:
n interlockingdevicessuchasvalvesandelectricalswitchesaresecurelyattached;
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n actuatorssuchascams,leversandlinkagesarecorrectlyalignedandattached.Theseshouldbenon-adjustable,forexamplebyusingpinsanddowels,insteadofgrubscrews;
n thereisnolateralmovementoftheguardwhichwouldcausetheinterlockingdevicestobecomemis-aligned;
n anywearintheinterlockandactuatordoesnotallowknifeorclampoperationwhentheguardispartlyopen;
n checktheoperationofthetwo-handcontrolinaccordancewithparagraphs85and86.
Six-monthly inspection and check
94Everysixmonthsacompetentguillotineengineerorindependentengineer/engineersurveyorshouldperformathoroughinspectionofthemachinewhichshouldcompriseaseriesofperformancechecksandtestsin additiontothevariouschecksandtestscarriedoutateachshift,afterknifechangesandeverymonth.ThesearedetailedinSection3ofthispublication.Awrittenreportshouldbeissuedandkeptinyourlog(seeAppendix2).
Engineer’s competence guide
95Beforeemployingaservicecompanyorengineer,satisfyyourselfoftheircompetence.Youcandothisbyaskingthefollowingquestions.Thislistisnotexhaustiveandyouneedtoassesstheresponsesastotheirrelevancetotheworkyouexpectthemtoundertake.
n Whatqualificationsdoestheengineerhave?n Whattrainingandrelevantexperiencehastheengineerhad(includingsafety
training)?n Istheengineerfamiliarwiththispublication?n Whatequipmentistheengineerusingtomeasurestoppingperformance?n Whenwasthatequipmentlastcalibrated?n Cantheengineerprovideacopyofthecalibrationcertificate?n Howdoestheengineercheckthatthemaximumgaugingforceisnotbeing
exceeded?n Cantheengineerprovideaspecimenservicereport?
96Engineersshouldhavereceivedproductspecifictrainingandtrainingonthehealthandsafetyaspectsofguillotines.Theyshouldbefamiliarwithandunderstandthecontentofthisbookandcarrystoppingperformancetestequipmentwhichshouldberecalibratedeverytwelvemonthsasaminimum.
When not to wait six months
97Inspectionsandtestsshouldbecarriedouteverysixmonthseveniftheguillotinecontinuestofunctionandoperatecorrectly.However,wheretheguillotineshowsanysignsofabnormalbehaviourduringtheinterveningsixmonths,additionalinspectionandtestsshouldbecarriedout.Examplesofabnormalbehaviourincludelockouts,overrunsandthemalfunctioningofanysafetycomponent.Continualuseofamachineonathree-shiftcyclemayrequireinspectionmorefrequentlythaneverysixmonths.
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Ancillary handling equipment
98Whenconnectingautomaticorsemi-automaticpaperhandlingequipmenttoaguillotinecontrolsystem,ensurethattheintegrityofthesafetysystemsonbothmachinesismaintained,particularlyifinterconnectingsystemshavebeensuppliedbydifferentmanufacturers.Asauser,youshouldensurethatretrospectivelyfittedadditionalhandlingequipmentisofthesamesafetystandardandintegrityastheguillotine.TheneedforhandlingequipmentwilloftenbeidentifiedbyassessmentsmadeundertheManualHandlingRegulations1992.2
99Whenchoosingsuchequipment,makesureyoudesignthejobtoreducetheriskofupper-limbdisorders(ULDs)byapplyingergonomicprinciplestothemachinery,workstationsandworkmethodssothatthejobfitstheperson.AdviceonthesemattersincludingtrainingrequirementsiscontainedinanumberofHSEpublications.2,8,10-12
Modifications and servicing100 Asauser,thekeypointstorememberare:
n nevermakemodifications,additionsorconversionswhichmightaffectsafetywithoutreferencetoacompetentguillotineengineer.Thisalsoappliestotheinstallationandadjustmentofsafetydevices,valvesandguarding,aswellastoweldingworkcarriedouttotheloadbearingelementsoftheequipment;
n neverattempttomodifythesoftwareofprogrammablecontrolsystems;n ensurethatmodificationstothecontrolsandsafetysystemsatthemachine
arerecordedinthelogandrevisedcircuitdiagramsaresuppliedbythemanufacturer/supplier;
n reviewandwherenecessaryreviseexistingriskassessmentsfollowingmodification;
n donotexceedthemanufacturer’smaximumloadcarryingcapacity;n rememberthatsomeequipmentsuchasscissorliftsandpilehoistswillbe
subjecttothethoroughexaminationrequirementsoftheLiftingOperationsandLiftingEquipmentRegulations19983andthePressureSystemsandTransportableGasContainersRegulations1989.13Alwayshavelifting/loweringequipment’spneumatic,mechanical,hydraulicandelectricalsystemsregularlyexamined,especiallysuchitemsaschains,airreceivers,hydrauliccylindersandhoses.
Safe working practice101 Observethefollowinggoodpractice:
n Beforeinitiatingmachinemotion,makesurethatnobodyisatrisk.n Neverswitchofforremovepressure,suctionorventilationdeviceswhenthe
machineisoperation.n Ensurethatguillotineswithancillaryhandlingequipmentareonlyoperatedby
competentstaffwhoarefamiliarwithboth.n Definetheoperator’sresponsibilitiesandgivetheoperatortheauthorityto
refuseinstructionsbyothersthatareunsafe.n Makesureanypersonundergoingtrainingorinstructionisbeingsupervisedby
anexperiencedoperator.n Intheeventofanychangesinbehaviourofthemachineduringoperation,stop
themachineimmediately,lockoffandseekadvicefromacompetentengineer.
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Section 3 Engineer’s responsibilities and competenceLegal requirements
102 Asaguillotineengineer/engineersurveyor,youneedtomakesurethatyoucomplywithanumberoflegalrequirements.Thesearesummarisedintheboxinsert.TheinformationwithinthissectionandSection4willprovideyouwithpracticalandtechnicalguidancetohelpyoutocomply.Ifyouinspect/serviceaguillotinewhichfailsperformancetestsordoesnotcomplywiththetechnicalstandardswithinthisbook,youshouldadvisetheuseraccordinglyinwriting.Do not issue an inspection/test certificate without recording the defects.
Relevant legislation
The Health and Safety at Work etc Act 197414placesadutyonthoseconductinganundertaking,suchastheprovisionofaguillotineinspectionandmaintenanceservice,todosoinawaywhichdoesnotendangerthehealthorsafetyofthosewhoarenotintheiremployment,includingtheguillotineoperator.
The Provision and Use of Work Equipment Regulations 19986(PUWER 98)applytothosewhocontroltoanyextenttheuseofworkequipmentsuchasaguillotine.EngineerstakingresponsibilityforinspectionandservicingworkaretoanextentexercisingcontrolovertheuseofguillotinesandwillhavedutiesunderthefollowingaspectsoftheRegulations:
n equipmentismaintainedandinspectedinaccordancewiththeguidanceinthisbook;
n dangerouspartsofmachineryareguarded;n controlsandcontrolsystemsareunambiguous,reliableandperformallthe
tasksnecessaryforsafeoperation,includingminimisedfailuretodanger,egprovisionofemergencystopandothercontrols;
n recordsofinspectionareprovided.
Competence
103 Guillotineengineersshouldbecompetent.Theywillnormallybeaqualifiedmechanicalorelectrical/electronicengineer,withatleastaCityandGuilds,ONCorHNDqualification,orequivalenttraining/experience.Engineersshouldnormallyhavesuitableandsufficientexperienceofguillotineswithatleastoneyears’experienceofthemakeofmachinetobesuppliedorserviced,togetherwithproductspecifictrainingandtrainingonthehealthandsafetyaspectsofguillotines.Engineersshouldbefamiliarwithandunderstandthecontentofthisbook.Engineersshouldbefullyawareofthelimitationsoftheirownknowledgeandexpertiseand,wherenecessary,havetheabilitytocallupontheservicesofspecialiststoensuresafetyattheguillotine.
Accreditation of inspecting engineers
104 Atthedateofpublication,thereisnospecificschemeforaccreditationofguillotineengineerswhocarryoutinspectionalthoughtheUnitedKingdom
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AccreditationService(UKAS)haspublishedguidance(RG1)15which,togetherwithEuropeanStandardEN45004:1995providesguidanceonappropriatequalificationsforcompetentengineersinspectingpowerpressesandtheirassociatedguardsandprotectiondevices.Similarqualificationscanbeconsideredforthoseinspectingguillotinesandtheirsafeguardarrangements.Thereisnorequirementunderhealthandsafetylegislationthatinspectingengineersmustbeaccredited,butaccreditationcanbetakenasoneindicationofcompetence.
Assessment of competence
105 Engineersshouldbepreparedtoanswerthefollowingquestionsfromguillotineusersbeforebeingemployed:
n Whatrelevantqualificationsdoyouhave?n Whatexperiencedoyouhaveonthemachineinquestion?n Whattraininghaveyouhad?n Areyoufamiliarwiththeguidanceinthispublication?n Canyouprovidethenamesofotheruserswhosemachinesyouhaveserviced?n Whatequipmentareyouusingtomeasurestoppingperformance?n Whenwasthatequipmentlastcalibrated?n Canyouprovideacopyofthecalibrationcertificate?n Howdoyoucheckthattherecommendedmaximumgaugingforceisnot
beingexceeded?n Canyouprovideaspecimenservicereport?An operator’s left hand was amputated on a 32 inch (813 mm) guillotine. The blade and clamp operated when all six light beams of the AOPD were broken simultaneously. This occurred as a replacement solenoid valve had been incorrectly wired by the supplier engineer.
Inspection and testing of guillotines
106 Asacompetentguillotineengineer,youhaveapivotalroleinensuringthecontinuedsafeoperationofthemachineryyouinspect.Itiscrucialthatinspectionandtestworkisperformedrigorouslysothatanydeteriorationinthemachineorsafeguardperformanceisdetectedandrectifiedattheearliestopportunity.
107 Makesureyouperformallofthefollowingcheckswhererelevanttothemachinebeinginspectedinadditiontotherecommendeddailyandmonthlychecksnormallycarriedoutbytheuser(seeparagraphs85-93):
All machines108 Onallmachineswhichhavetherelevantequipment,carryoutteststoensurethat:
n onmachinesmanufacturedafter1995,thedynamicgaugingforcedoesnotexceed500Nandthestaticgaugingforcedoesnotexceed300N;
n onmachinesmanufacturedbefore1995,ingeneralthedynamicgaugingforceshouldnotexceed500Nandthestaticgaugingforceshouldnotexceed300N,butexceptionallythestaticgaugingforcemayreachamaximumof500Nat60%pileheight;
n onmachineswithamechanicalclamp,thestaticgaugingforceislimitedtoamaximumof300Nbyatensatorspring.Thesearenotavailablefromtheguillotinemanufacturers,butarereadilyobtainablefromothersources.Thelinkageshouldbesmoothinoperationandarrangedsothatclampandpedalmovementareproportionate;
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n onmachineswithelectricallyoperatedclamps,movementoftheclampisonlypossiblebytwo-hand-controloperationwiththefrontguardinposition.
ESPEs109 Checkthat:
n therelevantuser-checksdetailedinparagraph87ofSection2canbesatisfied;n thepositionoftheAOPDisthecorrectdistancefromthedangerouspartsas
specifiedontheinformationplate;n theoverallstoppingperformancedoesnotexceedthatstatedonthe
informationplate;n thedetectioncapabilityofthesystemaccordswiththemanufacturer’s
instructions;n thestoppingperformancemonitorandoverrundetectionsystemwherefitted
arecorrectlypositionedandfittedandareworkingtothemanufacturer’srecommendations;
n clampgaugingforcesdonotexceedthemaximumfiguresgiveninparagraph108;
n thebrakeandclutchwherefittedareworkingtothemanufacturer’srecommendationsandareuncontaminatedbyoilorgreasetotheextentthatthiswouldaffectstoppingperformance.Internalexaminationshouldnormallytakeplaceatapproximatelytwo-yearintervals,subjecttomanufacturer’srecommendationsand/orwear;
n themachineprimarycontrolelement(s)arefunctioningcorrectlyandareuncontaminatedbyoilorgrease;
n nolockoutshaveoccurredbyverifyingwiththeoperator;n therearenoothermechanicalorstructuralaspectsthatwouldpreventtheknife
stoppingorreversingwhenrequired;n theguillotinecontrolsandconnectionstotheAOPDhavenotbeenadversely
modifiedandthatanymodificationshavebeenrecordedinthelog;n theconditionofthecontrolgear,programmableelectronic-basedcontrol
systemenclosures,cams,camswitches,andtheirfixingsarefreeofweardamageorcontaminationbyoilanddirt;
n camsarepinned.
110 AreportproformatoattachtothemachineslogisprovidedinAppendix4.
Interlocking guards111 Checkthat:
n clampgaugingforcesdonotexceedthemaximumfiguresgiveninparagraph108;
n therelevantuserchecksdetailedinparagraphs88-90and93ofSection2canbesatisfied;
n thebrakeandclutchareperformingtothemanufacturer’srecommendationsandareuncontaminatedbyoilorgreasetotheextentthatthiswouldaffectstoppingperformance.
112 AreportproformatoattachtothemachineslogisprovidedinAppendix4.
Sweepaway guards113 Checkthat:
n sweepawayguardshavebeenupgradedtomeetthestandardsdetailedinparagraph37ofSection1;
n clampgaugingforcesdonotexceedthemaximumfiguresgiveninparagraph108;
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n therelevantuserchecksdetailedinparagraphs91-92ofSection2canbesatisfied;
n theguardoperatesbothduringanormalstrokeandinasimulatedoverrunsituation;
n guardmovementiscausedbypartofthemachineunaffectedbytheheightoftheknifecarrier(unlesstheheightofthecarrierdoesnothavetobealteredtoaccommodatedifferentknives);
n theforcedrivingtheguardissufficienttoremovetheoperatorfromthearea;n wheretheguardretractsunderpowerordirectmechanicallinkage,trapping
betweenguardarmsandthemachineframeisprevented;n thebrakeandclutchareperformingtothemanufacturer’srecommendations
andareuncontaminatedbyoilorgreasetotheextentthatthiswouldaffectstoppingperformance.
114 AreportproformatoattachtothemachineslogisprovidedinAppendix4.
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Section 4 Technical standards for existing machinery and the supply of second-hand machinery
Introduction
115 Asasupplierofusedguillotinesoraguillotineengineer,youneedtomakesurethatallmachinesyousupplyorworkonaresafe.Thepracticaleffectofthelegalrequirementswithwhichyouneedtocomply,isthatanymachineofanyagemustmeetthestandardssetoutinthissection.Rememberthat:
n Beforeyousupplyausedguillotine,youhavealegaldutytocarryoutallthemodificationsandupgradingworknecessarytomeetthestandardsdetailedinthissection.
n Ifyouprovideaninspectionandtestserviceforguillotinesinuse,youhaveadutytoadvisetheuserofanynecessarymodificationsorupgradingwork.
Relevant legislation
The Supply of Machinery (Safety) Regulations 1992 (SMR)16applytothefirstsupplyofmachineryintotheEuropeanEconomicArea(EEA),andonlywherethishashappenedafter1January1993.Ifyousupplysecond-handmachinerywhichwasfirstusedbefore1993insidetheEEA,withoutsubstantiallyrefurbishingit,themachinerydoesnotneedtocomplywiththeseRegulations.Similarly,ifyouaresimplyre-supplyingusedCEmarkedmachinery,theseRegulationsdonotapply.IneithercaseyouwillstillhavedutiesunderSection6oftheHealthandSafetyatWorketcAct1974(HSWAct).
Ifthemachinehasbeenrefurbishedtotheextentthatalmostallthereplaceablepartsarenew,itwouldbeconsideredtobenewmachinerytowhichSMRwouldapply.Theadditionofnewguardsorcontroldeviceswouldnotmakethemachine‘new’,butcompleteredesignofthehydraulicsystemandreplacementofdrivemotorsandcontrolcircuitswould.WhereSMRdoesapply,theguillotinewillneedtocomplywiththecurrentEuropeanstandardsdetailedinSection5ofthisbook.
NotwithstandingdutiescoveredunderSMR,Section6oftheHSWAct14appliestotheresaleofallusedworkplacemachinery,andrequiresthattheguillotineisdesignedandconstructedsothatitissafeandwithoutrisktohealthwhenitisusedatwork.Italsorequiresthatadequateinformationissupplied.Theserequirementswillnotbesatisfiedunlessupgradingtothestandardsdetailedwithinthissectioniscompleted.
116 Tomakesureyoucomplywiththeserequirements,whenyoupreparemachinerypriortoresalealways:
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n lookforobviousdefects,suchasmissingordefectiveguardsorothersafetydevices,orinadequatelyprotectedelectricalwiring;
n checkthatknownriskswillbeproperlycontrolledorthatthereisinformationabouthowtheycanbecontrolled;
n makesureyouhaveprovided,fromaninformedsource,instructionsonsafeinstallation,use,adjustmentandmaintenance-seeparagraph117,‘Guillotineinstructionmanualandlog’;
n ensurewarningsignsarevisibleandeasytounderstand.
Guillotine instruction manual and log
117 TheinformationyouneedtosupplyunderSection6oftheHSWActincludes;
n acompleteoperatingmanual-seeAppendix1forfulldetails;n acopyoftheECDeclarationofConformityiffirstsuppliedafter1January
1995;n detailsofservicingwork(maintenance,inspectionandtesting)and
modificationsundertaken;n ownershiphistory.
118 Thelasttwobulletpointscomprisetheguillotinelog,forwhichasampleformatisgiveninAppendix2.Ifnologwasacquiredwiththeguillotine,makesureyouprovideanewoneandincludeallavailableinformation.
Technical standards
Electrical safety and controls119 Whereupgradingiscarriedout,electricalequipmentandcontrolgearshouldbeinaccordancewithEuropeanStandardEN60204:Part11998.Inaddition,EN61310:Parts1&21995willapplytotheindication,markingandactuationofelectricalcontrolgearattheguillotine.Workmaybenecessarytoensurethatexistingearthingandisolationarrangementsmeettherequirementsofthe16theditionoftheIEERegulations.17
Gauging pedal120 Foot-operatedcontrolsshouldbeprovidedforgaugingonly.
121 Forsafegaugingensurethat:
n theouter,upperedgeofthegaugingpedalatrestisbetweenn 50mmand125mmabovefloorlevel;n theouteredgeofthepedalisatleast150mminfromtheedgen ofthemachinetableattheoperatingposition;n thewidthofthegaugingpedaldoesnotexceed225mm;n ifitispossibletoinadvertentlyoperatethegaugingpedal,itisshrouded.
Two-hand control devices122 Onallmachines,engineersshouldensurethatitisonlypossibletostartacutbyoperatingatwo-handcontrolunlessprovidedwithfullyenclosingguardswithdual-channelcontrolcross-monitoredinterlockingorequivalent.
123 Two-handelectricalcontrolsshouldcomplywithEN574:1997.Inparticular:
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n type111Cforelectrical/electricdrivenknives,andn type111Bforhydraulic/pneumaticdrivenknives.
Programmable electronic systems124 Programmableelectronicsystemsarefrequentlyusedtocontrolclamp,knifeandbackgaugeoperation,normallyinmachinesprovidedwithaphotoelectricsystem.Guidanceforprogrammableelectronic-basedtechnologiesusedinsafety-relatedapplicationsisgiveninIEC61508:Part11998andHSEpublications.18-19
125 Makesurethattheprogrammableelectronicsystemhasbeenarrangedsothat:
n stopsignalsfromtheESPEoranyotheremergencystop,interlockingguardortripdeviceareapplieddirectlytotheprimarycontrolelements.Noothercontrolsignalshouldbeabletorestartthemachineuntilthestopdevicehasbeenreset;
n thereisfullcompatibilitybetweentheguillotinecontrolsystemandthesafetysystem;
n thedesigntakesaccountoftheactionoftheESPEand/orothersystemsontheguillotineprimaryandsecondarycontrolelements;
n informationontheconditionofthemachinesafetysystem,egcurtaininterrupted,isfedintotheprogrammableelectronic-basedcontrolsystemtoupdateit;
n correctoperationofthemachinesafetysystemcannotbeoverriddenbyincorrectoperationoftheprogrammableelectronic-basedcontrolsystem;
n theprogrammableelectronic-basedcontrolsystemallowstheknifeandclamptoberaisedandloweredmanually.
126 Beforeupgradingguillotinesthatincorporateprogrammableelectronic-basedsafety-relatedcontrolsystems,obtainandkeepproperdocumentationrelatingtothehardwareandsoftwareelementsandensurethatallmodificationsareassessed,recordedanddated.Itisessentialthatmodificationstoprogrammableelectronic-basedcontrolsystemsanddevicesconsidertheextenttowhichanyalterationsmayaffectthefunctionalsafetyperformance(orsafetyintegritylevel)ofthesesafety-relatedsystems.
Front guards
127 Thissectiondescribesthestandardsforsafeguardsthatneedtobeprovidedatthefrontofanyreconditionedguillotinetopreventoperatorcontactwiththedescendingknifeandclamp.
ESPE
128 ESPEshouldcausetheguillotinecontrolmechanismtostoporretracttheknifeandclampbeforetheoperatorcanreachthem.Atpresent,theonlytypeofESPEappliedtopaper-cuttingguillotinesistheESPEusingAOPDs,normallyeitheralightcurtainoranarrangementoflight-beamdevices(seeSections3.206and3.205ofBSIEC61496:Part21997).
Performance standards for pre-1985 guillotines129 Machinesoriginallysuppliedbefore1985whichdonotmeettherequirementsofBSIEC61496:Part21997(suchasfrictionclutchmachineswithfull-functionmonitoring)designedinaccordanceandcomplyingwiththestandardsdetailedinthe1976editionoftheBPIFbookGuarding of guillotines and trimmers
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(seeAppendix5),requirethefollowingmodificationstoachieveaminimumacceptablestandard:
n supplytothemachineprimarycontrolelement(s)tobeinterruptedwhentheguillotinelocksout;andeither,
n twomachinesecondarycontrolelementsarrangedsothatfailureofonewouldbedetectedandpowerpreventedfromreachingtheprimemover;or,
n asinglemachinesecondarycontrolelementwhichifitfailstothepermanentlyenergisedstatewillpreventtheguillotinestartingafterthepowersupplyhasbeenswitchedon.
Inaddition:n theguillotineisprovidedwithtwo-handcontrolasdescribedinparagraph
25exceptthatadelayofupto1secondbetweenoperatingeachcontrolisacceptable;
n ifonlyonefinalswitchingdeviceisprovided,thatifthefinalswitchingdevicefails,thefailureisdetectedandtheknifewillstopimmediatelyorattop-dead-centre,andtheguillotinewilllockout;
n wheretheguillotineiscapableoffullyautomaticoperation,thereareinadditiontotheaboverequirementstwofinalswitchingdevices.
Performance standards for post-1985 guillotines130 EN61496:Part11998andBSIEC61496:Part21999givetherelevantstandardforESPEssuppliedfromapproximately1985.Atype4ESPEshouldbeusedwhichshouldnotrespondtoanysourceotherthanthattransmittedbythesystem(seeFigure14).
131 Mutingfacilitiescanbeautomaticallyappliedontheupstroke,manualselectionbeingunnecessary.Themeansofactuatingthemuteshouldbekeyedorpinned.ForguillotinesthathavebeenprovidedwitharetrofittedESPE,itisnecessarytoensurethatthecontrolsystemoftheguillotineisdesignedtoanequivalentstandard,toassuretheoverallperformanceintegrity.Anyoriginalcontrolequipmentnottoanequivalentintegrityofthesafetysystemyouarefittingshouldbereplaced.
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Figure 14 Schematicexamplefortheinterfacingofatype4ESPEtotheguillotine
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132 Theoverallsafeguardingsystemshouldcomplywiththefollowing:
(a) itshouldnotbepossiblefortheclamptodescendunderfullpowerand cuttingtocommencewhiletheESPEismuted; (b) itshouldnotbepossibleto‘strikeon’whileanypartofaperson interruptstheAOPD; (c) interruptionoftheAOPDduringadangerouspartofthecuttingcycle shouldcausetheknifeandclamptostoporbegintoretractwithout apparentdelay.Itmustnotbepossiblefortheknifeandclamptobesetin motionagainuntilthetwo-handcontrolhasbeenre-initiated. (d) duringdangerousmotionthereshouldbenomeansofrenderingtheESPE ineffective;. (e) lossofanypowersourceoftheguillotine,internalorexternal,willnotresult inafailurethatwillcompromisethesafetyintegrityofanypartofthe machine; (f) thecontrolsystemasawhole,includingguillotineandsafetysystems, shouldbedesignedsothatintheeventofasinglecomponentfailure,the overallsafeguardingsystemwillnotfailtodanger; (g) itshouldbesoconstructedthatitisnotadverselyaffectedbythe environmentalconditionsnormallyfoundintheprintingandpaper industries.Usersandguillotineengineersshouldexchangeinformation ifconditionsareoutsidethenorm.(SeealsoEN60204:Part11998and IEC/EN61496:1997.)Aspectstobearinmindare:
(i) mechanicalvibrationandshockfromthemachineorfrom anyothersource; (ii) dust,oil,moistureandcorrosion; (iii) variationsofambienttemperatures; (iv) variationsofsupplyvoltageandfrequency; (v) potentiallyexplosiveatmospheres(equipmentusedshould besuitableforthatenvironment); (vi) electromagneticdisturbances;
(h) thepositioningandinstallationofthephotoelectriccurtainshouldensure thattheobjectdetectioncapabilityisnotadverselyaffectedbyanylight reflectivesurfacesontheguillotineorthemateriallikelytobecut; (i) mostguillotinesshouldhaveavisualindicatorwhichthepersoncarrying outthedailyinspectionandtestofthecurtaincansee.Thiswouldindicate wheninsertionoftheappropriatelysizedtestpiecehasgivenrisetothe correctAOPD.(ThisisarequirementinEN61496:Part11997); (j) thataccesstothedangerzonefromanydirectionnotprotectedbyan AOPDshouldbepreventedbyeffectivefixedorinterlockingguardsor screens,orotherphysicalbarrierssuchassidetables.
Machine primary control elements133 AnESPEactuatestheguillotineprimarycontrolelementstostoptheknifeandclampbeforetheoperatorcanreachthem.Theseelementsaredirectlyresponsibleforbringingtheknifeandclamptorestandpreventinganyfurtherdangerousmovementwhilethephotoelectriccurtain(AOPD)isinterrupted.
134 Toensure:
(a) assuredstoppingcapability; (b) preventionofunexpectedstartup(uncovenantedstroke); (c) thatalevelofsafetyperformancecommensuratewiththatoftheESPEis maintained;and (d) adequatefacilitiesforsafetymonitoringmeansareavailable,
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engineersshouldcheckthatboththeknifeandclampeachhavetwomachineprimarycontrolelements.However,if,intheguillotinedesign,powertoboththeknifeandtheclampcouldbecontrolledbyasinglemachineprimarycontrolelementandtheeffectofitsoperationinbothclampandknifecircuitscanbemonitored,thenonlytworatherthanfourguillotineprimarycontrolelementsneedbeprovided.MachinessuppliedbeforeOctober1990donotneedtohavetwomachineprimarycontrolelementsforeachoftheknifeandclamp,butthesameintegrityasdetailedinparagraphs130-132shouldbeachieved.Inexceptionalcircumstances,asinglemachineprimarycontrolelementcanbeprovidedwhere:
(a) thereisanelectromagneticclutch(thecoilisthemachineprimarycontrol element);and, (b) thereisanelectricmotorfittedwithafail-safebrake(thewindingofthe motoristhemachineprimarycontrolelement).Standardsofdesignfor theelectromagneticclutchshouldbeasperparagraphs146-147.
The operator of a guillotine that did not have full-function monitoring, had three fingers of one hand amputated. The operator had reached in to remove a stack of paper thinking that the knife would stop at the top of its stroke. An undetected failure of a cam switch caused the guillotine to overrun, and then continue to cycle unguarded.
Stopping performance monitoring135 Engineersshouldcheckthat:
n clutch-operatedmechanicalguillotinesareequippedwithstoppingperformancemonitoring;
n thestoppingperformancemonitorisascloseaspossibletotop-dead-centreandsetsothattheESPEwilllockoutiftheoverallsystemstoppingperformanceexceedsthatusedforthecalculationofminimumcurtainseparationdistance;
n stoppingperformancemonitoringiscarriedoutatleastoncepercycle(providedthisisrepresentativeofthebrakingconditionswhichwouldoccuriftheAOPDwasinterruptedduringdangerousmotionoftheknifeorclamp).
136 Stoppingperformancemonitoringsystemsinclude:
(a) fully comprehensive system,asdescribedinA3ofEN61496: Part11997; (b) single cycle system,egoverrundetection.
137 Full-functionmonitoringshouldincludeoverrundetectionfordirecthydromechanical,clutch-operatedandelectromechanicalguillotines,eitherbyhardwiredorprogrammableelectronic-basedcontrolsystems.
138 Checkthatthesensorsaresecurelyfixedinposition,andtheirproperpositionshouldbepermanentlymarkedandcontainedwithinasecureenclosure.
Overrun direction139 Certaintypesofknifemechanism(iedirecthydromechanical,clutch-operatedmechanicalanddirectelectromechanical)whicharereciprocatinginaction,arefittedwithmachinepositionsensors(egcam-operatedswitches).Ensurethatlockoutoccursifthecrankshaftoverrunstop-dead-centrebymorethan10°.Themeansofoverrundetectionshouldbeinasecureenclosure.Wheresafetybolts/pawlsarefittedtoactasamechanicalscotch,ensurethattheyarefullyfunctional.
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Positioning of the AOPD relative to the cutting stick140 WhenfittinganewESPEensurethattheAOPDispositionedaccordingtoSections5.2.2and5.2.3ofEN1010:Part31999;EN999:1999andHSG180.1Guidanceforexistingguillotinesfirstsuppliedbeforethedateofthispublicationisprovidedinparagraph33andAppendix7.
Interlocking guards
141 EnsurethatinterlockingguardsarefittedaccordingtoSection5.2.3ofEN1010:Part31999.
142 Allmachineswithinterlockingguardsshouldhaveadual-channelcontrolsystemwhichiscrossmonitored,iedual-channelcontrolinterlockingwithtwoguardpositionswitchesoperatinginoppositemodes(oneperchannel)whichshouldbecrossmonitored.Operationoftheclampandknifeisnormallybymeansofatwo-handcontroldevicebutinthiscasemaybebymeansofasinglecontroldevice.
Automatic sweepaway guards
143 Machines fitted with automatic sweepaway guards should not be resold after the date of publication of this book.
144 NeverreplaceasweepawayguardwithanESPEwherethemachineisfittedwithabrakewhichmayfailandcausedanger.
145 Ifyouprovideaninspectionandtestserviceforexistingguillotineswithsweepawayguards,refertoSection1paragraph37fortherelevantstandards.
Brake and clutch design
146 Ensurethatanybrakeorclutchusedcomplieswiththefollowing:
(a) electricpowersupplyfailure,orlossofpneumaticorhydraulicpressure, shouldimmediatelyactivatethebrake,andwhereappropriate,disengage theclutch; (b) theyshouldbecapableofperformingsatisfactorilyduringmaximum sustaineduse; (c) overheatingshouldbepreventedbydissipation; (d) failureofanyonecomponentshouldnotcauserapidconsequentialfailure ofothercomponents; (e) thepotentialforcorrosionoftheworkingpartswhichmightaffectthe efficiencyoftheclutchandbrakeshouldbeminimised; (f) thedesignandpositioningofbrakesshouldensurethatlubricantsdonot reachthefrictionsurfaces; (g) anynecessaryworkingclearancesforclutchesshouldbesufficientto ensurethatfrictiondragleadingtounintendedmovementoftheknife orclampcannotdevelopevenunderthemostsevereoperatingconditions; (h) anyfrictionliningstobereplacedshouldbetothemanufacturers specificationandfastenedsothattheyareunlikelytobecomedetached duringuse; (i) accumulationofdustordebrisproducedfromfrictionalsurfacesshouldbe minimisedinareaswhereitmightcausedragorseizure;inaddition,the designshouldensurethatfragmentsfrombrokenclutchorbrake componentsareunlikelytocausefailure;
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(j) wheretheclutchandbrakearecombined,theconnectionbetweenclutch andbrakeshouldberobustandasshortanddirectaspossibletoensure correctsynchronisationoftheclutchandbrake; (k) wherediaphragmclutchesareused,theyshouldbedesignedand installedtominimisethepossibilityoffailure,due,forexample,toover stressingorfatigue;sharpedgesshouldbeavoided.
147 Ensurethatanyspringsusedforapplyingthebrakeordisengagingtheclutchareadequatelyratedforsafetyandstrongenoughtoensurepromptandeffectivebrakeapplication.Compressionspringsshouldbeusedfordisengagingtheclutchandtheyshouldnotbeoverstressed.Asinglespringshouldnotbereliedonforthesedutiesunlessequivalentsafetyisassuredbyothermeans.Anysetofspringsshouldbeuniformindimension,qualityandrating,andthefailureofonespringshouldnotpreventthebrakefromoperatingeffectivelynoraffecttheabilityoftheclutchtodisengageuponreleaseoftheengagingforce.Thespringsshouldbesoloadedthat,whencorrectlyadjusted,thesprings’anchoragecanbelockedtopreventriskofslackeningback.Thearrangementsforspringhousingandguidingandofguidepins,shouldminimiseanyriskofbinding.
Hydraulic design
148 Theclampiscommonlydrivenhydraulicallyandmanyguillotinesalsohavehydraulicknifeoperation.Checkthatallhydrauliccomponentsareofadequatestrengthandsuitableforthepurposeforwhichtheyaretobeused.
149 Neitherlossofelectricalpowertoanysolenoidnorlossofhydraulicpressureshouldcausedanger.Thehydraulicsystemshouldbedesignedsothattheknifeand/orclampcanbestoppedorreversedatanypointonthedescendingstroke.
150 Hydraulicsystemsshouldbedesignedandconstructedtowithstandthemaximumsystemdesignpressure,andbearrangedtoavoidgenerationofharmfultransientpressures.Systemprotectionshouldbeprovidedwhereinjuryordamagemayresultfromeitherexcessiveorinadequatehydraulicpressure.
151 Reliefvalvesshouldbeprovidedtopreventover-pressurisationandshouldbesuchthattheycanbeadjustedonlybyqualifiedmaintenancestaff.
152 Theprovisionofgaugesorgaugeconnectionpointsfordiagnostictestsofbothprimaryandsecondary(pilot)pressureisrecommended.
Control valves
153 Whereupgradingofcontrolvalvesisundertaken,ensurethatwherethereisasingle-controlvalve,meansareprovidedtodetectanyfailureofthisdevicewithinonestrokeofthemachineandthatthisresultsinlockout.
154 Monitoredsolenoid-operatedvalvesshouldbedesignedtoensurethatthemonitordevicealwaysregisterseachoftheactualpiston/spoolpositions.Solenoid-operatedvalvescanhavemeansofmanualoperationandshouldnotbypassthesafetydevice(s).However,manuallyoperateddevicesshouldbedesignedtoprevent,asfaraspracticable,inadvertentorcarelessoperation.
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Gravity fall
155 Protectionagainstgravityfalloftheknifeandclampshouldbeprovidedby:
(a) externalreturnsprings(withtwo-yearlyreplacement);or (b) aspringreturnsingleactingcylinder;or (c) apilot-operatedcheckvalveinassociationwithacounterbalancevalve.
156 Check-valveswhichprotectagainstgravityfallshouldbemounteddirectlyontothehold-upcylinder(s).Onlyseatedvalvesshouldbeusedascheck-valvestosupporttheknifeandclampbecausetheyarelesslikelytobeaffectedbydirtinthehydraulicsystemthanspoolvalves.
157 Oilfromthereturnareaofacylindershouldbepassedthroughthemaincontrolvalvesor,ifthisisnotpossible,throughauxiliaryvalves,theoperationofwhichdependstotallyonthesupplyofpilotoilfromthemaincontrolvalves.Thisisnecessaryevenwhentheguillotineisfittedwithseated‘hold-up’valvessinceitprovidesback-upsecurity.
158 AdviceiscontainedinBSEN982:1996.
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Section 5 Additional information for suppliers of new machinesLegal requirements
Relevantlegislationincludes:
n theSupplyofMachinery(Safety)Regulations1992;16
n Section6oftheHealthandSafetyatWork(etc)Act1974;14
n theElectricalEquipment(Safety)Regulations1994.20
TheSupply of Machinery (Safety) Regulations 1992applytothesupplyofallnewmachinerymanufacturedorsuppliedintheUK,whereveritistobeusedintheEEA.
Theterm‘supply’appliestoallthoseengagedinthesupplyprocessandincludesagentswhosolelymakethearrangementsforasaleonbehalfofthemanufactureranduser.
TheyrequireallUKsuppliersandmanufacturerstomakesurethat:
n themachinerysuppliedmeetstherelevantessentialhealthandsafetyrequirementswhicharelistedintheScheduletotheRegulations,includingtheprovisionofsufficientinstructions;
n atechnicalfilehasbeenassembled;n thereisa‘declarationofconformity’forthemachinewhichshouldbeissued
withit;n thereisa‘CE’markingattachedtothemachine.
DetailedguidanceontheseRegulationsisgiveninthepublicationDTI product standards - machinery: Guidance notes on UK Regulations.21
Suppliers’ responsibilities
159 TheMachineryDirectivehasbeenimplementedinallEEAcountriesbutasanimporterofmachineryintotheUKyoustillneedtomakesurethatthemachineryissafebeforesupplyingit.UsethefollowingchecklistifimportingfromtheEEA:
n lookforobviousdefects,suchasmissingguardsorothersafetydevices,orinadequatelyprotectedwiring;
n checkthatknownrisksfromthemachinerywhenitisinusewillbeproperlycontrolledorthatthereisinformationonhowtheycanbecontrolled;
n makesurethemanufacturerhasprovidedinstructionsforsafeinstallation,use,assembly,commissioning,safehandling,adjustmentandmaintenance.AdetailedlistofthecontentsofoperatingandservicingmanualsisgiveninAppendix1;
n makesuretheinstructionmanualiswritteninEnglishifthemachineryisforuseintheUK.Themaintenanceinstructionsmayhoweverbewritteninanotherlanguageifspecialisedstafffromthemanufacturerorsupplierwillcarryoutmaintenance;
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n provideasuitablelogfortheusertorecordownershiphistory,detailsofservicingandmodifications,andtestcertificates. AsampleformatisprovidedinAppendix2.
n ensurepowerrequirements,weightsandfloorloadingandheatoutput,whereappropriate,havebeenchecked;
n ensurethatanywarningsignsarevisibleandeasytounderstand;n checkthatithasaCEmarking;n checkwiththemanufacturerifyouhaveanyconcernsaboutanyoftheabove
matters;n neverassumethatmachineryissafejustbecauseithasCEmarking;n checkthatthemachinecompliestoBSEN1010:Part31999andisnota
machinethatwasdestinedforanon-EEAcountry
160 IfyouimportfromoutsidetheEEA,youwilltakeonthelegaldutiesofthemanufacturer.
Manufacturers’ responsibilities
161 Manufacturersneedtodesignandconstructmachinerysothatitcanbeusedsafely.Thisincludesactionto:
n identifyhealthandsafetyhazards,suchastrapping,crushingandelectricalshock,whicharelikelytobepresentwhentheguillotineandanyassociatedhandlingequipmentareinuse;
n assessthelikelyrisks;n eliminatetheidentifiedrisksorprovidesafeguardsandinformationaboutany
residualrisk.
Conformity assessment
162 Beforeissuingadeclarationofconformity,manufacturersshoulddrawupatechnicalfile.Thisshouldcomprise:
n anoveralldrawingofthemachinewithdrawingsanddiagramsofthecontrolcircuits;
n drawings,calculationsandtestresultsdemonstratingconformitywiththeessentialhealthandsafetyrequirements;
n alistofrelevantessentialhealthandsafetyrequirements,standardsandothertechnicalspecifications;
n adescriptionofthemethodsusedtoeliminatehazards;n whereappropriate,technicalreportsofcertificatesfromcompetentbodiesor
laboratories;n whererelevant,anytechnicalreportcontainingtestresultsofcompliancewith
harmonisedstandards;n acopyoftheinstructionsforthemachine.
New machines - harmonised standards
163 Manufacturersneedtoensurethattheirproductssatisfytheessentialhealthandsafetyrequirements.ThereareanincreasingnumberofharmonisedEuropeanStandardsthatwillhelpyoutodothis.ThedetailedharmonisedstandardsforguillotinesarespecifiedinEN1010:Part31999.
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164 Otherrelevantstandardsinclude:
n EN292:1991n EN294:1992n BSEN574:1997n BSEN954:Part11997n BSEN982:1996n BSEN983:1996n EN999:1999n EN1037:1996n EN1050:1997n EN1088:1996n EN60204:Part11998n BSEN60947:Parts4(1)1992n BSEN61496:Part11997n BSEN61496:Part21997n IEC61508:Part11998(NOTE:Thisaseven-partstandardwhichdealswith
allaspectsofthefunctionalsafetyofsafety-relatedsystems.Parts1,3,4and5areavailableasIECstandardswhileParts2,6and7arecurrentlyfinaldraftinternationalstandards(FDIS).ItisanticipatedthatthesePartswillbeavailableasIECstandardsbytheendof1999.)
HSEpublications
n HSG1801n HSG4322
Forfurtherdetails,seetheReferencesection.
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Appendix 1 Contents of instruction manualsForallmachines:
1 Nameandaddressofmanufacturer/supplier.2 Machinemodelandtype.3 Themethodandactuationoftheknifeandclamp.4 Themodesofoperation.5 Anypotentialsystemhazardandrecommendedsafesystemsofwork,egknife changingandcleaning.6 Adescription,includingcircuitdiagrams,ofthecontrolandsafetysystem.7 Ageneraldescription,includinghydraulic/mechanical/pneumaticdiagrams,of knifeandclampoperation.8 Supplyvoltageandfrequency.9 Dynamicandstaticgaugingforces.10Adescriptionofcorrectguardoperation.11Detailsofsix-monthlyexaminationsandadjustmentsincludingoverallstopping performanceoftheknifeinmilliseconds.12Actionrequirediftheknifesticksinapileortheshearbolts/pinsfail.13Instructionsforperiodiclubrication,adjustmentandmaintenance.
Additionalinformationforguillotineswithahydraulicallyoperatedknife/clamp:
1 Maximumandminimumworkingpressuresforbothclampingandgauging operationsandhowtocheckthem.2 Settingsforadjustablepressurerelieforreducingvalvesandhowtocheck them.3 Adescriptionofactuatorandvalvefunction.4 Accumulatorcapacityandinitialpressuresetting.5 Typesoffilterrequiredanddegreeoffiltrationinmicrons.6 Thetypeofhydraulicfluidthatshouldbeused.7 Forclutch-operatedmechanicalguillotines,thecorrectmethodofmaintaining thebrakeandclutchsettingsshouldbedetailed.8 Formachineswithelectrosensitivesafetysystems,aplateshouldbeaffixedto themachineinaccordancewithEN999:1998whichgivesthefollowing information:n overallsystemresponsetime(inmilliseconds);n objectdetectionsensitivityinmillimetres;n minimumAOPDseparationdistanceinmillimetres.
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Appendix 2 Sample logsMachine Log
Part 1 of 4 - Ownership history
Machinemodel/type:.................................Serialno:..........................
Note: Upon installation/commissioning, inspection checks should be carried out.
Nameandaddressofmanufacturer/agent Nameandaddressoffirstuser:firstsupplying: ..................................................... .................................................... ..................................................... .................................................... ..................................................... .................................................... ..................................................... ....................................................
Datesold:......................................... Dateofsafetycheck:..................
Nameandaddressofnewagent: Nameandaddressofnewuser:.................................................... ........................................................................................................ ........................................................................................................ ........................................................................................................ ....................................................
Datesold:................................... Dateofsafetycheck:...................
Nameandaddressofnewagent: Nameandaddressofnewuser:.............................................. .................................................................................................. .................................................................................................. .................................................................................................. ....................................................
Datesold:............................. Dateofsafetycheck:...................
Nameandaddressofnewagent: Nameandaddressofnewuser: ............................................. .................................................... ............................................. .................................................... ............................................. .................................................... ............................................. ....................................................
Datesold:................................... Dateofsafetycheck:...................
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Guillotine log
Part 2 of 4 - Commissioning, servicing and modifications
Results of commissioning inspections and tests:Toberecordedoneachoccasionthemachineismovedtoanewlocation(includingwithinthesamepremises).
Newlocation:..........................................................................................................Engineer’sname:.............................Signature:..................................Date:.........Engineer’scompany:...............................................................................................
Details of servicing: To be next serviced on:.......................Recordofalldetailsofservicingworkcarriedoutincludingrepairs.
Engineer’sname:.............................Signature:...............................Date:............Engineer’scompany:................................................................................................
Details of servicing: To be next serviced on:.......................Recordofalldetailsofservicingworkcarriedoutincludingrepairs.
Engineer’sname:..............................Signature:............................Date:..............Engineer’scompany:................................................................................................
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Guillotine log
Part 2 of 4 - Commissioning, servicing and modifications (continued)
Technical details of any modifications made:Recordalldetailsofanymodificationsmadetoupgradethemachinetocurrentstandards.
Engineer’sname:......................................................Date:...................................Engineer’scompany:...............................................................................................
Technical details of any modifications made:Recordalldetailsofanymodificationsmadetoupgradethemachinetocurrentstandards.
Engineer’sname:.................................................Date:........................................Engineer’scompany:...............................................................................................
Details of failure to pass any in-house daily shift or monthly check:Recordalldetailsandcircumstancesofanyfailuretopassroutinechecksorabnormalbehaviour.
Operator:..................................... Date:.................................Supervisor:..................................
Details of failure to pass any in-house daily shift or monthly check:Recordalldetailsandcircumstancesofanyfailuretopassroutinechecksorabnormalbehaviour.
Operator:..................................... Date:.................................Supervisor:..................................
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Guillotine log
Part 3 of 4 - Test certificates
Attachcopiesofeitherallphotoelectricguardsix-monthlytestcertificateswithdetailsofstoppingperformanceandgaugingforceorinterlocking/sweepawayguardmonthly/six-monthlytestcertificates.
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Guillotine log
Part 4 of 4 - Records of daily shift and knife-change checks
Attachcopiesofchecksheets.
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Appendix 3 Guillotine safety checklistsDaily or shift/knife-change checks (see paragraphs 85-90)
Machinemake/model:..............................Serialno:........................Weekcommencing:......................
Test/check: state pass or fail Mon Tue Wed Thu Fri Sat Sun
All machines with two-hand control (including sweepaway guards)
Guillotineshouldstrikeonwhenbothcontrolsaredepressedwithin0.5second.
n eachcontrolisoperatedindependentlyandresetinturn.
n onecontrolisoperatedfollowedbyotherafter2-3secondsdelay
n bothcontrolsareoperatedwithin0.5secondbutoneisreleasedmid-way
throughthestrokeandthenre-operated
Machines with ESPDs
Istheguardindicatorworking(wherefitted)?
Isrecommendedtestpiecedetected(threepositions)?
Doesknifeandclampstopwhencurtainisinterruptedduringstroke?
Isfixedreartableguardingfittedandsecuredordoesinterlockedaccessgate
preventpoweredknifeandclampmovement?
Machines with interlocking guards
Checkguardcannotopenduringstrokeiflockingarrangementfitted
Checkthatstoppingefficiencyisadequatebyopeningtheguardatmid-stokeof
firsttheknifeandthentheclamp(nolockingarrangement)
Formachineswithasinglecutbuttonwheretheguardhastobehelddown
againstspringpressure,check:
n machinedoesnotstrikeonifbuttonisoperatedbeforeguardclosed
n theguillotinestrikesonwhenthecontrolisreleasedandre-operatedwith
theguardclosed
n theknifestopsiftheguardisheldclosedbutthecontrolisreleasedbefore
theknifereachesbottomdead-centre
Isaccesstorearofknifeandclampguarded?
Checkedby(operator’sname):
Confirmedby(supervisor’sname):
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Monthly checks of machines with sweepaway or interlocking guards (see paragraphs 91-93)
Machinemake/model:..............................Serialno:........................Weekcommencing:......................
Test/check: state pass or fail Jan / Jul Feb / Aug Mar / Sep Apr / Oct May / Nov Jun / Dec
Machines fitted with sweepaway guards
Doesthemainguardbarextendatleast500mmbythe
timetheknifeorclamphasdescended50mm?
Istheguardbaramaximumof180mmfromthetableat
thelowestpointofsweep?
Arelinkagesfreefromwearandsecurelyattached?
Aretheguardbars/screensfirmlyfixedtopreventaccess
throughtheguard?
Issideaccesstotheknifepreventedbysideguardsortable
extensions?
Machines fitted with interlocked guards
Arevalvesandelectricalswitchessecurelyattached?
Areactuatorssuchascams,leversandlinkagescorrectly
alignedandattached?
Istheguardfreefromlateralmovementwhichwouldcause
theinterlockswitchestobecomemis-alignedandfailto
engage?
Aretheinterlockswitchesandactuatorsfreefromwearthat
wouldallowknifeoperationwhentheguardispartlyopen?
Checkedby(operator’sname):
Confirmedby(supervisor’sname):
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Six-monthly inspection and test of machines with ESPDs (see paragraph 109)
Machinemake:.....................................Model:............................... Serialno:...............................
Inspection/test (to be performed in addition to daily shift
checks)
Comments/result Details of remedial work
undertaken/advised
Machines with ESPDs
CheckthatthepositionoftheAOPDisthecorrectdistance
fromthedangerousparts.Recordminimumseparation
distance
TestobjectdetectioncapabilityofAOPDagainst
manufacturer’srecommendation(statetestpiecesize)
Examinestoppingperformancemonitor(andindicator)
andoverrundetectionsystemagainstmanufacturer’s
recommendationstoensurecorrectpositioningandinstallation
Examineanybrakeandclutchtomanufacturer’s
recommendations.Stateairgap
Testoverallstoppingperformanceagainstmanufacturer’s
recommendationandrecordresultinmilliseconds
Checkthatdynamicandstaticgaugingforcesdonotexceed
500Nand300Nrespectively
Examineandtestthemachineprimarycontrolelementsto
ensurecorrectoperation
Inspecttheguillotinetoensuretherearenomechanicalor
structuralaspectsthatwouldpreventtheknifeandclampfrom
stoppingorreversingwhencalledupon
Examineandinspectthecontrolsandconnectionstothe
photoelectricsafetysystemtoensurenomodificationshave
beenmadewhichadverselyaffectthesystem
Checktheconditionofcontrolgear,programmableelectronic
systemenclosures,fixings,camswitchesandcamwearand
thattheyarefreefromdirtandoilcontamination
Havedailyorshift/knifechangechecksbeencompleted?
Statepassorfailandprovidedetails
Signatureofengineer: Date:
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Six-monthly inspection and test of interlocking and sweepaway guards (see paragraphs 111 and 113)
Machinemake:................................. Model:.......................... Serialno:...............................
Inspection/test (to be performed in addition to daily shift checks) Comments/result Details of remedial work
undertaken/recommended
Machines fitted with interlocking guards
Arevalvesandelectricalswitchessecurelyattached?
Areactuatorssuchascams,leversandlinkagescorrectlyalignedandattached?
Istheguardfreefromlateralmovementwhichwouldcausetheinterlockswitchesto
becomemis-alignedandfailtoengage?
Aretheinterlockswitchesandactuatorsfreefromwearthatwouldallowknife
operationwhentheguardispartlyopen?
Examinethebrakeandclutchtoensurethattheyareperformingtothe
manufacturer’srecommendations.Adjustasnecessaryandstateairgap
Statewhetherdynamicandstaticgaugingforcesexceed500Nand300N
respectively
Havedailyorshift/knife-changechecksbeencompleted?Statepassorfailand
providedetails
Machines fitted with sweepaway guards
Doesthemainguardbarextendatleast500mmbythetimetheknifeorclamphas
descended50mm?
Istheguardbaramaximumof180mmfromthetableatthelowestpointof
sweep?
Arelinkagesfreefromwearandsecurelyattached?
Aretheguardbars/screensfirmlyfixedtopreventaccessthroughtheguard?
Issideaccesstotheknifepreventedbysideguardsortableextensions?
Examinethebrakeandclutchtoensurethattheyareperformingtothe
manufacturer’srecommendations
Statewhetherdynamicandstaticgaugingforcesexceed500Nand300N
respectively
Havedailyorshift/knife-changechecksbeencompleted?Statepassorfailand
providedetails
Signatureofengineer: Date:
Signatureofcompanymanager: Date:
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Appendix 4 GlossaryActive opto-electronic protection devices (AOPD)-alightcurtainand/orlightbeamdevicecomprisingemittingandreceivingelementswhichformadetectionzone.
Assured stopping capability -theuseoftwoindependentcontrolmechanismseachofwhichiscapableofstoppingthedangerouspart.
Backgauge-amoveablestop,behindandparalleltothecuttingstick.
Curtain separation distance-thedistancebetweentheareaofdetectionoftheAOPDandthecuttingstick.
Cutting stick -aflexiblestripofmaterialinsertedintothemachinetableinlinewiththeknife.
Detection zone-thezonewithinwhichaspecifiedtestpiecewillbedetectedbytheelectrosensitiveprotectiveequipment(ESPE).
Dual-channel control interlocking-interlockingwithtwoseparatepowerinterruptingdevices,arrangedinseriessothattheoperationofeitherwillresultintheinterruptionofthepowermedium.
Electrosensitive protection equipment/device (ESPE/D)-Anassemblyofdevicesand/orcomponentsworkingtogetherforprotectivetrippingorpresencesensingandcomprisingasaminimum:
n asensingdevice;n control/monitoringdevices;n outputsignalswitchingdevices.
Final switching device-thecomponentofthemachinessafety-relatedcontrolsystemthatinterruptsthecircuittothemachineprimarycontrolelementwhentheoutputsignalswitchingdevicegoestotheOFF-state.
Full-function monitoring -seeAppendices5and6fordetailedexplanation.
Gauging-useofthegaugingpedaltolowertheclampdownontothematerialtobecuttoallowthematerialtobeaccuratelypositioned.
Interface -thesumofallthepointsofelectricalinteractionbetweenthemachineandsafetysystem.
Knife holder/carrier-adeviceattachedtotheknifeduringchangingwhichcoversthecuttingedgeofthebladeandprovidesasecurehandleatthepointatwhichtheknifeisboltedintothemachine.
Light curtain-anactiveopto-electronicprotectivedevice(AOPD)comprisinganintegratedassemblyofoneormoreemittingelement(s)formingadetectionzonewithadetectioncapability,bothspecifiedbythesupplier.
Lockout condition-acondition,initiatedbyafault,preventingnormaloperationoftheelectrosensitiveprotectiveequipment(ESPE)whichisautomaticallyattainedwhenalloutputsignalswitchingdevicesand,whereapplicable,allfinalswitchingdevicesandsecondaryswitchingdevicesaresignalledtogototheOFF-state.
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Machine primary control element-theelectricallypoweredelementthatdirectlycontrolsthenormaloperationofamachineinsuchawaythatitisthelastelement(intime)tofunctionwhenmachineoperationistobeinitiatedorarrested.Thiselementcanbe,forexample,amainscontactor,amagneticclutch,oranelectricallyoperatedhydraulicvalve.
Machine secondary control element-amachinecontrolelement,independentofthemachineprimarycontrolelement,thatiscapableofremovingthesourceofpowerfromtheprimemoveroftherelevanthazardousparts.Themachinesecondarycontrolelementisnormallycontrolledbythesecondaryswitchingdevice.Thiselementcanbe,forexample,amainscontactor,amagneticclutchoranelectrically-operatedhydraulicvalve.
Muting-atemporaryautomaticsuspensionofasafetyfunctionorfunctionsbysafetyrelatedpartsofthecontrolsystem.
Object detection capability-theminimumsizeoftestpiecewhichwhenplacedatrightanglestotheAOPDwillbedetected.
OEM -originalequipmentmanufacturer.
Overall safeguarding system-thecombinationoftheESPEandmachineprimarycontrolelementswiththesecondarycontrolelementandclutchorbrakingsystemwhichtogethercausetheclampandknifetohaltorretractwhentheAOPDisinterrupted.
Overall system response time-thetimeintervalresultingfromthesumoftheelectro-sensitiveprotectiveequipment(ESPE)responsetimeandthetimetocessationofhazardousmachineoperation.
Overall stopping performance-seeoverallsystemresponsetime.
Overrun -thecontinuedmovementoftheknifeorclampbeyondtop-dead-centrefollowingacuttingcycle.
Programmable guillotine -aguillotinecapableofcompletingapredeterminedseriesofbackgaugemovementsand/orcapableofco-ordinatingcuttingcycleswithbackgaugemovements.
Secondary switching device (SSD)-Adevicewhich,inalockoutcondition,performsaback-upsafetyfunctionbygoingtotheOFF-stateandinitiatinganappropriatemachinecontrolaction,egde-energisingthemachinesecondarycontrolelement.
Side lays-fixedverticalguidesateithersideofthereartableextendingfromthethroatofthemachine.
Striking-on-initiationoffullpressuredescentoftheclampandknifebyoperationofthecontrols.
Test piece-anopaquecylindricalobjectoflowreflectivityusedtotesttheAOPDdetectioncapability.
Throat -theareaboundedbythecuttingstick,sidelaysandundersideoftheclamp.
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Appendix 5 Extract from British Printing Industries Federation booklet Guarding of guillotines and trimmers, December 1976 editionThe following extract details a standard which is applicable only to guillotines manufactured and in use before 1985 - see paragraph 129.
Photoelectric devices
1 Thelightcurtainofthesedevicesisdesignedtostopthemotionoftheknifeorclampbeforeaperson’shandscanreachthedangerzone.Eachoperatorshouldreceiveinstructionsonthefunctioningofthedevicetoenablerecognitionofanydefectsinitsoperation.Themechanical,electricalandelectronicpartsoftheequipmentshouldbeperiodicallyinspectedandefficientlymaintainedbyacompetentperson,andrecordsshouldbekept.
2 Thestandardofperformanceofphotoelectricdevicesshouldbeasfollows:
(a) ifanypartofapersonisundertheknifeorclampitmustnotbepossible fortheknifeorclamptobesetinmotionbythereleaseofthebrakeand/ orengagementoftheclutch; (b) intheeventofaninterruptionofanyofthelightbeamswhiletheknifeor clampisdescending,theknifeorclampmustbebroughttorestbefore theobjectwhichhascausedtheinterruptioncanreachthespacebeneath theknifeorclamp.Itmustnotbepossiblefortheknifeorclamptobeset inmotionagainuntilthesafetydevicehasbeencompletelyrestoredtothe clutchdisengagedposition; (c) thedeviceshouldbesoinstalledandconnectedastoensurethattheknife andclampcannotbebroughtintomotionunlessthedeviceisinafully operativecondition; (d) thesafetydevicemustnotberenderedineffectivebystraylightwhether artificially,naturallyordeliberatelyapplied; (e) accesstotheknifeorclampatthefrontofthemachinefromanydirection notprotectedbythelightcurtainorscreenshouldbeeffectivelyprevented byfixedguards,screenorextendedsidetables; (f) arrangementsshouldbemadebytheprovisionofeffectiveguardsorby additionalelectrosensitivedevices,suitablypositionedtopreventthe machinebeingusedifapersonisstandingbetweenthelightcurtainand trappingarea; (g) thedevicemustfailtosafetyinrespectoffailureofelectricalorother powersuppliesandsofarasitisreasonablypracticableinallother respectsitmustnotmalfunctionasaresultofelectricalinterference anditmustnotberenderedineffectivebynormalfluctuationsinvoltage andfrequency; (h) thedevicemustbesoconstructedandmountedasnottobeadversely affectedbyvibrationorshockfromthemachineorfromanyothersource;
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(i) thedeviceandtheassociatedelectricalapparatusmustbesoenclosedas topreventfailureresultingfromdust,oil,moistureorcorrosion.Particular attentionshouldbegiventopreventingdustandotherforeignmatter enteringsuchenclosureswhentheyareopenedformaintenanceorother purposes; (j) theequipmentmustnotberenderedineffectivebyvariationinambient temperaturewithintherange0°Cto55°C.Thesensitivityasdefinedin(n) and(o)mustbemaintainedthroughoutthistemperaturerangeandinan atmosphereofupto95%relativehumidity; (k) thedeviceshouldbelockedandthekeyaccessibleonlytoanauthorised person(iethefactoryoccupierorsuchotherpersonasmaybeappointed byhimtoberesponsiblefortheproperoperationoftheapparatus); (l) thedeviceshouldincorporateasystemoffullfunctionmonitoringinwhich anautomaticcheckisprovidedtoproveateachcycleofthemachinethat theguardandvariouspartsoftheguillotineareoperatingcorrectly.The checkismadeduringtheupstrokeandifallpartsofthesafetysystemare operational,theknifewillcometorestattopdeadcentre.Ifanyfault causestheclamporknifetooverruntopdeadcentre,anoverrunswitchis broughtintooperation,whichstopsthemachineinsuchamannerthat operationcanonlyberestoredbyanauthorisedperson.Onafullfunction monitoredguillotinethefollowingarechecked:
(i) theoperationofthelightcurtainitself.Wherethesensing devicecomprisesanumberofdiscreteunits(suchas individuallightbeams)theautomaticcheckmustoperate toprovethateachunitisoperatingeffectively; (ii) therelaysandcontactorsinthesafetycircuits,allbeing crossmonitoredsothatanyfailure,forinstanceinthetop deadcentreoverrunswitch,resultsinlockout; (iii) themachineelectricsthemselvessuchasthemain contactors,whichcouldconceivablyweldoracomponent whichcouldbecomefaulty. (iv) theclutchandbrake.Iftheclutchdragsorthebrake wearssothattheknifedoesnotstopatthetop,thetop deadcentreoverrunswitchisactivated.
Requirementsforfull-functionmonitoringaregivenintheeighthreportoftheJointStandingCommitteeonsafetyintheuseofpowerpressesentitledElectrosensitive safety devices for friction-clutch press brakes;[seeAppendix6]
(m) whereaguillotinemaybeoperatedinflammableorexplosiveatmospheres, additionalprecautionsmaybenecessarytomeettherequirementsof Regulation27oftheElectricity(FactoriesAct)SpecialRegulations1944; (n) thesensitivityofthedeviceshouldbesuchthatitcandetecttheinsertion ofastandardtestgaugeofadiameterdeterminedinaccordancewiththe followingtable:
Distanceofplanoflight 450mm(18inches) curtainfromthefaceof 610mm(24inches) theclamp
Diameteroftestgauge 40mm(1.5inches) 50mm(2inches)
Thesensitivityshouldnotbecapableofsuchadjustmentastorenderthe apparatusineffectiveasasafetydeviceandthefollowingtestshouldbe madeatthecommencementofeachshift,oncethereafterduringeach
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shiftandalsobeforeeachproductionrunafterknifechanging.Atest gauge(seeabovetable),preferablyalongcardboardtube,shouldbe thrustquicklythroughthelightcurtaininthedirectionoftheknifeand clampwhiletheyaredescending.Ifthespeedoftheresponseofthe deviceandthesensitivityofthelightcurtainareadequateitshouldnotbe possiblefortheknifetodamagetheendofthetube.
Whereitisnecessarytoallowforoverhangofmaterial,themaximum verticaldistancebetweentheouterlightbeamandthemachinetable shouldbeassmallaspracticableandinnocasegreaterthan175mm (7inches).Inbothcasestheouterlightbeamshouldbeaminimum horizontaldistanceof635mm(25inches)fromthefaceoftheclamp. (o) inanalternativemethodoffittingtheguardtheouterlightbeammustnot belessthan1050mm(41inches)fromthefaceoftheclampmeasured horizontallyataminimumheightof765mm(30inches)abovewhere theoperatorstands.Inadditionthedistancebetweentheinnerlightbeam andthefrontedgeofthetableorbetweenanypairoflightbeamsmust notbemorethan150mm(6inches).
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Appendix 6 Extract from the Health and Safety publication Electro-sensitive safety devices for friction-clutch press brakes eighth report of the joint standing committtee on safety in the use of power pressesThe following extract describes a full-function monitoring system applied to a press brake. The equipment used on a guillotine will differ, but the general principle of overrun protection is the same. Full-function monitoring is applicable only to guillotines manufactured and in use before 1985 - see paragraph 129.
Full-function monitoring
Theillustration(Figure1)isdrawndiagrammaticallytoshowtheprinciplesoffull-functionmonitoring.Thedeviceismutedbymeansofswitch‘A’justbeforebendingbegins,ieatminimumgap.Thedeviceremains‘off’untilthepressbrakereachesapre-setpointinthereturnstroke,whenswitch‘B’simulatestheconditionofbreakingthelightbeamssimultaneouslyforabriefinstantandasignalisgiventostopthemachine.Thisisarrangedsoastobringthepresstorestattop-dead-centre,(orbottom-dead-centreonanupstrokingmachine)andifitdoesnotstopwithinapre-setdistance,itoperateslimitswitch‘C’andallincomingelectricalsupplytothepressisimmediatelyisolatedbyamastercircuitbreakerorcontractor.Thepresscanonlyberestartedbyusingare-setkey.
Apracticalrealisationofthesystemisnecessarilymorecomplexthanthesimplifieddiagram.Switch‘C’mustbetakenmomentarilyoutofcircuitatthebeginningofeachnormalworkingstroke.Itisalsonecessaryforthephoto-cellstobeswitchedfromaseriestoaparallelarrangement(byswitch‘A’orbyaseparateswitch)beforetheoperationofswitch‘B’.Failuretorestoreswitch‘C’wouldresultinlossofmonitoringandfailuretorestorethecellstotheseriesmodewouldresultinlossofguarding.Itisessentialtherefore,thatprovisionbemadeinapracticalsystemtoensurethatboththesetypesoffailurewouldthemselvesbedetectedandwouldresultinlockoutoftheincomingmainssupplytothemachine.
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Figure 1 Diagramshowinglocationofpositionswitchesforfullfunctionmonitoring
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Appendix 7 Method for determining the position of the AOPD relative to the cutting stickThe following extract details a standard which is applicable only to guillotines manufactured and in use before the date of this publication - see paragraphs 33 and 140.
1 Themanufacturershouldusereliablemeasurementtechniquestoascertainthemaximumoverallsystemstoppingperformance(SP)inmilliseconds,withinwhichallguillotinesbuilttothesamespecificationshouldbeabletoperform.Teststoestablishthisshouldnormallybecarriedoutduringthedevelopmentofeverymodelandbemadeatdifferentpointsinthestrokeandatdifferentpointsalongtheknifeandclamp.
2 TothisfigureofSPshouldbeadded:
a) anamountinmillisecondswhichtakesintoaccountthetolerance(t)ofthe instrumentandmethodusedfortakingthemeasurements;and b) afurtheramountinmillisecondswhichrepresentsthemaximumpotential deterioration(e)inthestoppingperformancethatislikelytohaveoccurred aftersixmonthsuse.Thisshouldbedeterminedempiricallybytests designedtorepresentaperiodequivalenttosixmonthsuse.
3 Theoverallsystemresponsetime(RT)afteristhesumofSP,tande:RT=SP+t+e
4 ThevalueofRTshouldbemarkedonaclearlyvisibleandpermanentinformationplateheaded‘Standardtowhichguillotineisconstructed’.Itshouldbeusedforsettingthestoppingperformancemonitor,iffitted.
5 Inaddition,theguillotinemanufacturerwillneedtoknowtheobjectdetectioncapabilityorsensitivity(S)ofthephotoelectriccurtainnamelythediameterofthesmallesttestpiece(inmillimetres)whichwillbedetectedatanypositioninthecurtainwheninsertedatarightangletotheplaneofthecurtain.Smaynotbesimplythespacingofthecentresofadjacentbeams.ThevalueofSshouldbeobtainedfromthecurtainmanufacturer(asdescribedinBS6491:Parts1&21984&1987)andrecordedontheinformationplatementionedabove.
6 Thepotentialdistance(P)thatahandcanpenetratethecurtainbeforeitisdetectedshouldthenbedeterminedfromtheequation:P=3.4(S-7)mm
7 Thecurtainshouldthenbepositionedsothatnopartofthephotoelectriccurtainisnearerthecuttingstickthantheminimumseparationdistance(D)where:D=P+(RTx1.8)or255mm,whicheveristhegreater
1.8m/sisthederivedhandspeedforCategory1machines.ThevalueofDshouldalsoberecordedonthesupplier’sinformationplate.
8 Asexamples,theminimumseparationdistance(D)against(RT)isshowngraphicallyatFigure1forvaluesofS=38mmandS=50mm.
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9 Thevaluesspecifiedinparagraphs5to7arebasedoncurrentlyavailableknowledgeandmaybesubjecttoamendmentasaresultoffuturedevelopment
Figure 1 Graphofminimumseparationdistanceagainstoverallstoppingperformance
0
100
200
300
400
500
600
700
100 2000 300Overall stopping performance (RT) in ms
Min
imum
cur
tain
sep
erat
ion
dist
ance
(D) i
n m
m when S = 50 mm
when S = 38 mm
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17 The Institution of Electrical Engineers Regulations for Electrical Installations 16th Edition. (The IEE Wiring Regulations)(obtainablefromtheIEE,POBox26, Hitchin,Herts,SG51SA)
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18 Programmable electronic systems in safety-related applications: An introductory guide.HSEBooks1987ISBN0717612783
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British/European Standards
BSEN292:1991Safety of machinery - Basic concepts, general principles fordesign. Part 1 1991 Basic terminology, methodology. Part 2 1991 Technical principles and specifications
EN294:1992Safety of machinery - Safety distances to prevent danger zonesbeing reached by the upper limbs
BSEN574:1997Safety of machinery. Two-hand control devices. Functionalaspects. Principles for design
BSEN954:1997Safety of machinery - safety related parts of control systems. Part 1 1997 General principles for design
BSEN982:1996Safety of machinery - safety requirements for fluid power systems and their components - hydraulics
BSEN983:1996Safety of machinery - safety requirements for fluid power systems and their components - pneumatics
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BS5323:1980Code of Practice for scissor lifts. Recommended design and safety requirements for fixed scissor lifts with a working height not exceeding 1.98 m ground or floor level and mobile vehicle and self propelled scissor lifts of any working height
BS6491: Electrosensitive safety systems for industrial machines. Part 1 1984 Specification for general requirements. Part 2 1987 Specification for particular requirements for incorporating photoelectric sensing units
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EN45004:1995General criteria for the operation of various types of inspectionbodies performing inspection
EN60204:1998Safety of machinery - electrical equipment of machines. Part 1 Specification for general requirements
BSEN60947:1992Specification for low voltage switch gear and control gear. Part 4-1 1992 Contactors and motor starters
EN61310:1995Safety of machinery - indicative marking and actuation. Part 1- Requirements for visual, auditory and tactile signals. Part 2 - Requirements for marking
IEC/EN61496:Safety of machinery - electro-sensitive protective equipment. Part 1 1997 General requirements and tests. Part 2 1997 Particular requirements for equipment using active opto-electronic protective devices (AOPDs)IEC61508:1998Functional safety of electrical/ electronic/ programmable electronic (E/E/PE) safety related systems.(NOTE:Thisaseven-partstandardwhichdealswithallaspectsofthefunctionalsafetyofsafety-relatedsystems.Parts1,3,4and5areavailableasIECstandardswhileParts2,6and7arecurrentlyfinaldraftinternationalstandards(FDIS).ItisanticipatedthatthesePartswillbeavailableasIECstandardsbytheendof1999.)
IEC61508:1998Functional safety of electrical/ electronic/ programmableelectronic (E/E/PE) safety related systems.(NOTE:Thisaseven-partstandardwhichdealswithallaspectsofthefunctionalsafetyofsafety-relatedsystems.Parts1,3,4and5areavailableasIECstandardswhileParts2,6and7arecurrentlyfinaldraftinternationalstandards(FDIS).ItisanticipatedthatthesePartswillbeavailableasIECstandardsbytheendof1999.)
Further informationForinformationabouthealthandsafetyringHSE’sInfolineTel:08453450055Fax:08454089566Textphone:08454089577e-mail:[email protected],CaerphillyBusinessPark,CaerphillyCF833GG.
HSEpricedandfreepublicationscanbeviewedonlineororderedfromwww.hse.gov.ukorcontactHSEBooks,POBox1999,Sudbury,SuffolkCO102WATel:01787881165Fax:01787313995.HSEpricedpublicationsarealsoavailablefrombookshops.
BritishStandardscanbeobtainedinPDForhardcopyformatsfromtheBSIonlineshop:www.bsigroup.com/ShoporbycontactingBSICustomerServicesforhardcopiesonlyTel:02089969001e-mail:[email protected].
TheStationeryOfficepublicationsareavailablefromTheStationeryOffice,POBox29,NorwichNR31GNTel:08706005522Fax:08706005533e-mail:[email protected]:www.tso.co.uk(Theyarealsoavailablefrombookshops.)StatutoryInstrumentscanbeviewedfreeofchargeatwww.opsi.gov.uk.
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