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OPERATION&
MAINTENANCEScreed
Svedala DemagEB 28
EB 28-E
Keep this manual for future reference
Order number for this manual: D900980277
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VALUEQUALITY
THE ORIGINAL
Your Authorized Dynapac Dealer:
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V Preface
Safe operation of the machine requires specific knowledge that is imparted by thepresent operating instructions. The information is provided in a concise, clearly struc-tured form. The individual chapters are arranged in alphabetical order and everychapter starts with page 1. The individual pages are identified by the chapter letterand the page number.Example: Page B 2 is the second page of chapter B.
These operating instructions cover various machine options. Make sure that duringoperation and maintenance work the description appropriate to the machine option isused.
Safety instructions and important notes are identified by the following pictograms:
� Precedes safety instructions that must be observed in order to prevent danger to per-sonnel.
� Precedes notes that must be observed to prevent damage to equipment.
� Precedes general notes and explanations.
� Used to indicate standard equipment.
� Used to indicate optional equipment.
In the interest of continued development, the manufacturer reserves the right to makechanges to the machine (which will not, however, change the essential features of thetype of machine described) without updating the present operating instructions at thesame time.
Dynapac GmbHWardenburg
Ammerländer Strasse 93D-26203 Wardenburg / GermanyTelephone: +49 / (0)4407 / 972-0Fax: +49 / (0)4407 / 972-228www.dynapac.com
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1 General safety instructions
1.1 Acts, directives, accident prevention regulations
� The locally applicable acts, directives and accident prevention regulations shall beobserved, even if the attention is not specifically directed to these. The operator himself shall be responsible for the observation and performance of therelated regulations and actions!
� The following alerts, prohibitions and instructions refer to the risks to which people,machinery and environment are exposed.
� Ignoring these instructions, bans and commands may lead to fatal injuries!
� Furthermore, the Dynapac publication "Directives for the correct and specified appli-cation of pavers" shall also be observed.
1.2 Warning instructions
Warning pointing to hazardous place or danger!Not observing the warning instructions may lead to injuries of lifeand limb!
Warning: risk of pulling in!
� In this area / with these equipment as a result of rotating or trans-portation parts, there is a risk of pulling in!Perform each operation only with equipment swicthed off!
Attention: electric voltage!
� All maintenance and repair work on the screed’s electrical systemmust always be carried out by an electrician!
Attention: suspended load!
� Never stand under suspended load!
Warning: risk of squeezing!
� Risk of squeezing arises due to the operation of certain parts, useof some functions and the movement of the machine. Always make sure that no one stays in the areas exposed to risk!
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Attention: hot surfaces or hot liquids!
Warning, risk of falling off!
Attention: hazardous batteries!
Attention: materials harmful to health and irritating substances!
Attention: flammable materials!
Attention: gas bottles!
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1.3 Prohibitive signs
It is prohibited to open / step on / reach into / perform / adjustduring operation or when the traction engine is running!
Do not start the engine/drive!Maintenance and repair works can be carried out only with the Die-sel engine turned off!
Do not sprinkle with water!
Do not extinguish with water!
Do-it-yourself maintenance is prohibited!Maintenance can be performed by skilled professionals only!
� Contact the Dynapac service!
Danger of fire: do not use open flame and no smoking!
Do not turn on!
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1.4 Protective gear
� The applicable local regulations may define the use of different protective gear! Observe these specifications!
Protect your eyes with googles!
Wear appropriate head protection!
Protect your hearing with appropriate ear mufflers!
Protect your feet with safety footwear!
Always wear tight, conforming working coveralls!Wear visibility vest for good visibility!
In case of polluted air, wear respiratory mask!
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1.5 Environmental protection
� The locally applicable acts, directives and waste disposal regulations shall be ob-served, even if the attention is not specifically directed to these. During cleaning, maintenance and repair operation the materials polluting water e.g.:
- lubricants (oils, grease)- hydraulic oil- gas oil- coolant- detergents
may not enter the soil or the sewer system!
These materials shall be collected, stored, transported in the correctcontainers until professional disposal!
Material harmful for the environment!
1.6 Fire prevention
� The applicable local regulations may specify the mounting of appropriate fire extin-guishers! Observe these specifications!
Fire fighting device(optional equipment)
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1.7 Further instructions
� Observe the manufacturer’s and other instructions!
� e.g. the maintenance instructions of the engine manufacturer
� Description / figure in case of an electrically heated design!
� Description / figure in case of an electrically heated design!
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A Correct use and application
� The “Guidelines for the Correct Use and Application of Paver finishers” compiled byDynapac are included in the scope of delivery for the present machine. The guide-lines are part of the present operating instructions and must always be heeded. Na-tional regulations are fully applicable.
The road construction machine described in the present operating instructions is apaver finisher that is suited for laying mixed materials, roll-down concrete or lean-mixed concrete, track-laying ballast and unbound mineral aggregates for foundationsfor paving.This machine shall be used, operated and maintained for the purpose of the intendedwork as included in the operation manual. Any other use is regarded as improper useand can cause injury to persons or damage to the paver finisher or other equipmentor property.
Any use going beyond the range of applications described above is regarded as im-proper use and is expressly forbidden! Especially in those cases where the paver fin-isher is to be operated on inclines or where it is to be used for special purposes(construction of dumps, dams), it is absolutely necessary to contact the manufacturer.
Duties of the user: A “user” within the meaning of the present operating instructionsis defined as any natural or legal person who either uses the paver finisher himself,or on whose behalf it is used. In special cases (e.g. leasing or renting), the user isconsidered the person who, in accordance with existing contractual agreements be-tween the owner and the user of the paver finisher, is charged with the observationof the operating duties.The user must ensure that the paver finisher is only used in the stipulated manner andthat all danger to life and limb of the operator, or third parties, is avoided. In additionto this, it must be ensured that the relevant accident prevention regulations and othersafety-related provisions as well as the operating, servicing and maintenance guide-lines are observed. The user must also ensure that all persons operating the equip-ment have read and understood the present operating instructions.
Mounting of attachments: The paver finisher must only be operated in conjunctionwith screeds that have been approved by the manufacturer. Mounting or installationof any attachments that will interfere with or supplement the functions of the paver fin-isher is permitted only after written approval by the manufacturer has been obtained.If necessary, the approval of local authorities has to be obtained.Any approval obtained from local authorities does not, however, make the approvalby the manufacturer unnecessary.
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Contents 1
Foreword
1.0 Table of contents
2.0 Layout of the screed2.1 Extensor screed2.2 Propane gas screed heater2.2.1 External control
2.3 Technical data
3.0 Screed extension3.1 Infinitely variable expansion3.2 Fitting the side shields
4.0 Mechanical settings4.1 Basic setting for screed extension parts4.2 Screed positioning angle4.3 Crowning setting4.4 Vibration equipment (special equipment)
5.0 Function and operation of the propane gasscreed heater
5.1 Heating the screed5.2 Malfunctions/Flame sensors/Remedial action5.3 Malfunctions/Noise/Remedial action5.4 Hose rupture protection5.5 Fitting the propane gas bottle5.6 The burner nozzles
6.0 Lubrication and maintenance instructions6.1 General
Safety instructions
6.2 Lubrication and maintenance instructionsEvery 10 operating hours or on a daily basisVisual inspections
Side shield
6.3 If requiredSlide guides
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7.0 Electric heating
8.0 Technical data8.1 Electric heating
9.0 Operating the electric heating9.1 Switchbox for heating system9.2 General information on heater9.3 Insulation monitor9.4 Checking and operating heater9.5 Temperature display, setting temperature level9.6 Operating the control and monitoring unit9.7 Temperature setting9.8 Error messages9.9 Switching off the heater
10.0 Maintenance10.1 Daily before starting work10.2 250 operating hours - National requirements apply
without restriction
11.0 Check points11.1 Insulation monitor
12.0 Safety certificate
Contents 2
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Z 23048
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Fitting the screed 2
2.1 Extensor screed EB 28
The EB 28 screed is an extensor screed,i.e. the installation width can be adjusted hydraulically across aninfinitely variable range between 1.20 m and 2.40 m.
Compression is handled by the tamping unit.In addition, the screed can be equippedwith a vibrator (special equipment).The vibration system generates rotary vibrations.
The screed is heated by propane gas with flame monitoring,safety ignition and a temperature switching system.
Function diagram, Figure 23048
(1) Centre section(2) Extension parts(3) Burner shaft(4) Hydraulic cylinder(5) Scale for screed extension parts(6) Walkway(7) Protective and trim panels(8) Screed locking system(9) Ratsche für Dachprofil
(10) Ratchet for positioning angle(11) -(12) Bracket for tilt sensor(13) Type plate
Speed adjustment for vibrator/tamperRefer to Operating Manual, tractor unit
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Z 23049
Close safety valve immediately - when the burner goes out - when fires break outAfter completion of work, also close the gas bottle valve
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Layout of the screed 2
2.2 Propane gas screed heater withflame monitoring and safety ignition
Key to Fig. Z 23049
(1) Gas bottle(2) Retainer for gas bottle(3) Bottle valve(4) Pressure relief unit with
hose rupture protection(5) Quick action valve for gas delivery
(gas bottle)(6) Gas filter
(8) Nozzle(9) Injector
(10) Actuator ring for air volume(11) Solenoid valve(12) Gas filter
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Z 23050
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2.2.1 External control
Key to Fig. Z 23050
(1) Toggle switch, levelling cylinder (right, left)
(2) Toggle switch, auger, (right, left)
(3) Toggle switch, screed EXTEND/RETRACT(right, left)
Layout of the screed 2
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1200
2400
680
1/min0-3600/600-1600/26,6
10 mm
Layout of the screed 2
2.3 Technical data:
Techn. Data of the screed:
Basic installation width in mm
hydraulic extendable up to mm
Weight of basic screed,with vibrator unit (kg) approx.
Speeds:rpm. Vibration /Hz
Tamper /Hz
Sliding plate thickness in mm
Screed heating
The company reserves the rightto make changes
Propane gas heater withsafety ignitionflame monitoring andtemperature switchingcircuit
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Screed extension 3
3.1 Infinitely variable extension (hydraulic)
The installation width of the screed can be extended hydraulicallyacross an infinitely variable range between 1.20 m and 2.40metres although the full width should not be utilized with theuppermost layer. Instead, select a width where the baseplates ofcentre section and screed extension components overlap by afew cm.
This prevents the impact point from imprinting on the roadsurface.
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Z 23052
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3.2 Fitting the side shields, Fig. Z 23052
❑ Fit side shields. Adjust the correct height and support angleusing the two cranks ( 3 ) and (4).
(1) Side shield
(2) Bracket for ultrasonic sensor
(3) Crank for height adjustment
(4) Crank for setting the contact angle
Screed extension 3
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Z 23053
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Mechanical settings 4
4.1 Basic setting of screed extension partsFig. Z 23053
The height of the hydraulically extendible screed componentscan be adjusted.
This enables you to set the extending screed components to suitthe mixture being applied and the varying application conditionswhile the unit is in operation, thereby operating the screedwithout creating visible strips.
There are 2 clamping screws (1) on each extension section. Thesetting of the extension parts can be corrected by applying ascrewdriver to these screws.The height adjustment dimension relative to the basic screedcan be read off on the scales (2) in “mm”.
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Z 23054
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4.2 Adjusting the positioning angle of the screed,Fig. Z 23054
The screed positioning angle is adjusted usingthe upper control arms ( 1 ) on the screed.The dimension selected can be read offon the scale ( 2 ).
4.3 Crowning setting
The crowning can be set either positively ornegatively using the ratchet ( 3 ). This value can beread off on the scale ( 4 ).
Compensating for track grooves (lateral indentationsacross the road surface).This is done by selecting a negative crowning settingand a raised height setting. After rolling, thiseliminates this road surface problem.
Mechanical settings 4
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Mechanical settings 4
4.4 Vibration equipment
The vibration equipment supports the installation of:
❑ hydraulically linked load-bearing layers
❑ bituminous load-bearing layers
❑ binding layers and
❑ all other materials used in relatively thick layers.
❑ Assists the installation with large surface area coverage,i.e. it operates at high speeds.
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Function and operation of the propane gas screed heater 5
5.1 Heating the screed
Caution!Any intervention which impairs the function of the heatersystem or which disables sections of it are strictly prohibited.The most important component in the safety equipment for theheating section is the flame monitoring unit. It is solely there forthe personal safety of the operators.
It is important for the operators to know the following:
Both halves of the centre section and every extension part hasindependent feedback control which functions independently ofthe other components. For this reason, each of these 4 sectionsof the screed is equipped with its own electronics box.
As soon as the heater is switched on (the appropriate indicatorlamp lights up), all 4 electronic monitoring systems are connectedto the positive terminal of the battery. This closes the circuits andthe monitoring program described below then runs automaticallyfor each section of the screed, in each case doing so independentlyof the other three (Automatic operation):
- The ignition coil is supplied with positive voltage. Theignition spark is initiated immediately (this is clearly audible).
- The gas solenoid valve is opened (the correspondinggreen display lamp provides a visual display for this). The gaspressure builds up in the delivery line up as far as the nozzle.The gas jet emerging from the nozzle exits through the boresin the primary air injector and reaches the burner strip. Aftera few seconds, as soon as the gas mixture is mixed withsecondary air as it emerges from the burner strip,it is ignited by the spark plug on the injector. Theflame propagates from here, forming an uninterruptedband of flame across the entire length of the burner.
- After approx 9-10 seconds, the ignition spark is switched off.The flame monitoring system cuts in at this point.
- Ionisation now causes a current of > 1μ - A to flow from theflame control electrode supplied by the positive terminaland on to ground/earth.
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Z 23055
Close safety valve immediately - whenever the burner goes out - when fires break outAt the end of work, also switch off the gas bottle valve
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5.1 Heating the screed, with electrical ignition /Temperature feedback control, Fig. Z 23055
Caution!Intervention which adversely affects the heating system orwhich disables any components of the system are strictlyprohibited.
CommissioningOpen the gas bottle and rapid-action valves (1).
This opens the selector valve for gas delivery and the gas-airmixture to the burners is ignited for a period of 7 seconds.
Secondary ignitionIf the burners fail to ignite, or if the flames are extinguished,secondary ignition cuts in.
5.2 Faults
If the burners fail to ignite or go out again this can be due to arange of different reasons:
- No adequate gas pressure in the system
- Bottle valve or rapid-action valves not opened
- Nozzles dirty
- Filter contaminated
Function and operation of the propane gas screed heater 5
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Z 23056
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Function and operation of the propane gas screed heater 5
5.3 Interference / Noise, Fig. Z 23056
The injector bores in the long tubular burners are designed foraverage air pressures and propane-butane gas mixtures.If conditions change, unpleasant noise can result from vibrationsin the air-gas mixture column.
Remedial action
This can be remedied by moving the rings (1). By moving therings (1) located beneath the air guide bores, air delivery isadapted to suit changed conditions.Once the three Allen screws have been unfastened, the rings(1) can be moved. Tighten them back down once the Allenscrews have been tightened.
Caution!Check the flame pattern after each adjustment. The flame mustbe slightly blue and should burn with a barely visible flame core.
Use genuine parts from the manufacturer whenever repairs arerequired. This also applies to gas hoses.
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Z 23057
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5.4 Hose rupture protection, Fig. Z 23057
The hose rupture protection (1) is installed together with thepressure controller (3) and the gas line (4).If a gas line is defective and if gas is then able to flow out of thesystem in an unrestricted manner, the hose rupture protectionunit prevents more gas from escaping as soon as the gas flowrate exceeds a level of 4 kg/h.
Caution:
Hoses become brittle and porous after a certain period of time.Always replace these hoses in the course of preventivemaintenance.
Always use genuine DYNAPAC gas hoses!
Once a new gas bottle (6) has been fitted, the hose ruptureprotection unit (1) may cut in when the heating system isactivated, blocking the flow of gas.If you press the button (2), this block is lifted and gas flow to theburners is restored.
Function and operation of the propane gas screed heater 5
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Z 23058
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Function and operation of the propane gas screed heater 5
5.5 Fitting the propane gas bottle, Fig. Z 23058
Gas pressure should be at least 1.0 bar. This value can be readoff on the pressure controller gauge.If pressure drops below this level, switch off the heater andchange the gas bottles. Otherwise the gas system could sufferdamage.The preset pressure control valves ensure that pressure doesnot rise above this level.
To prevent pressure from dropping below this level, the bottlesmust always release enough gas.
Caution:Whenever you are fitting a propane gas bottle, never allowany naked lights in the surrounding area!
Please note the following points when fitting a propane gasbottle:❑ Once you have placed the gas bottle ( 1 ) in the correct
location, fit a retaining strap ( 2 ) straightaway.❑ Remove the plastic protection from the valve on the
bottle.❑ Ensure that the thread on the gas bottle is not damaged.❑ Open the bottle valve ( 3 ) for a brief period to blow any
dirt out the system.❑ Close the pressure controller ( 4 ) and tighten down the
cap nut ( 5 ) with an open-end wrench.(connection with ccw thread).
Caution:Once you have connected up the gas bottle ( 1 ),you must carry out the following checks:❑ Open the bottle valve ( 3 )❑ Spray all connections with a foaming agent.❑ Check that all connections are properly sealed.
Remedy any leakage without delay!
!
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5.6 The burner nozzles
The burners are equipped with various different nozzles.
Nozzle attachment (mm)
Screed type Centre section Extension parts
EB 28 2X Ø 0.4 Ø 0.4
If the unit is dirty, you must remove the nozzle and blow them outfrom inside to outside.
Filter in the gas line
A filter is located before the rapid-action valve.Do not forget to check this filter if there is a fault in the gas deliveryline!
Function and operation of the propane gas screed heater 5
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6.1 General
Key to terms:
Maintenance point = Assembly or location at which thespecified maintenance task is tobe carried out.(e.g. engine, lubricant point)
Maintenance interval = Number of operating hours afterwhich the specified maintenancetask has to be carried out.(e.g. “every 10 hours”, i.e. at 10,20, 30, 40, 50, 60, 70 etc.operating hours“every 250 hours”; i.e. at 250, 500,750, 1000, 1250 etc. operatinghours)
The data relating to maintenance intervals apply to normaloperating conditions.When operated under difficult conditions, these maintenanceintervals should be shortened accordingly.
General recommendations for lubrication and maintenancework
Clean all nipples, caps and plugs thoroughly before applyinglubricant.
❑ Always ensure that the screed remains clean, i.e.free of flammable materials. Always clean the screedthoroughly after any maintenance work on the hydraulicsystem preferably with a steam jet.
Do not spray the screed if the heating system
Lubrication and maintenance instructions 6
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Safety instructions
❑ Maintenance and repair work can only be conductedwhen the drive system is stationary. At this time,secure the finisher to prevent it from rolling away.Secure the raised screed to prevent it from droppingaccidentally.
❑ Switch off main battery isolator.
❑ Always depressurize the hydraulic lines before workingon them.
❑ After maintenance and repair work, refit all guards andprotective panels.
❑ Fit a warning plate in the driver’s platform before anylubrication or maintenance work.
❑ Before any lubrication or maintenance work, alwaysremove the key from the ignition.
❑ Always wear safety clothing, protective goggles,facemask and other safety equipment if the workingconditions require this.
❑ All mechanical work on the unit must be performedby trained specialists.
❑ During lubrication and maintenance work on the screed,access for unauthorized persons is strictly prohibited.
❑ Oily cloths and readily flammable material should bestored and disposed of safely.
❑ Do not spray on the screed while the heating systemis operating.
Comply with the safety instructions in the OperatingInstructions for the tractor unit.
Lubrication and maintenance instructions 6
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6.2 Maintenance every 10 operating hours, or onadaily basis
Maintenance No. Maintenance location Maintenanceintervals tasks
Every 1 Visual checks10 operatinghours or 2 Baffle plates Cleandaily
3 Side shield Clean
Lubrication and maintenance schedule 6
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6.3 If required
Maintenance No. Maintenance location Maintenanceintervals work
If 4 Slide guides Adjustrequired
Lubrication and maintenance schedule 6
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1. Visual inspections
A = Check hydraulic system for leakage and signsof damage.
B = Check propane gas system for signs of leakage andcheck hoses for signs of damage (spray connectionsand connecting points with a suitable foam agent).
D = Check protective equipment such as guards,walkways, handrails etc. to ensure they are all inplace and are securely attached.
Every 10 operating hours or on a daily basis 6.3
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3. Cleaning the side shield
Proceed as follows:
Remove mixture residue from the sliding surface and from theguides.Coat sliding surface and guides with temperature-resistantgrease!
Every 10 operating hours or on a daily basis 6.4
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Z 23059
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4. Adjusting the slide guides, Fig. Z 23059
In the event of perceptible clearance developing in the slideguide bushes, this can be remedied as follows:
First unfasten the retaining screws ( 1 ).Using 3 clamping screws (2) (threaded dowel), adjust theslide guides to eliminate perceptible clearance, enabling thepiston rods to move freely. Retighten the retaining screws.
Repeat the same procedure for all other guide points.
If required 6.4
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7.0 Electric heating
The advantages of the electric screed heater are its tried-and-tested design, problem-free handling and maximum possible service friendliness thanks to maintenance-free operation. Short heating times, constant temperatures and efficient heat utilisation are thereforeassured thanks to the various, separately monitored and controlled heating sections.These are designed in the form of heating strips, sensibly arranged in the bottomplates and tamper knives of each screed section.If extension parts are fitted to the screed, only one single, easily installed plug con-nection need be fitted to the supply and control cable leading to the neighbouringscreed component.The heating system is monitored and controlled in the switch cabinet.
Danger of electric voltage
� Any failure to follow the safety precautions and safety regulations when operating theelectric screed heater leads to the risk of electric shock.Danger to life!All maintenance and repair work on the screed’s electrical system may be carried outby a specialist electrician only.
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8.0 Technical data
8.1 Electric heating
Type of heatingElectric heating with heating strips in bottom plates and tamper knives
Number of heating strips- per bottom plate- per tamper knife
11
items
Heating output:- Main screed - bottom plate- Main screed - tamper knife- Extendable part - bottom plate- Extendable part - tamper knife- Extension part, 350 mm - bottom plate- Extension part, 350 mm - tamper knife
975450975450600250
Watt
Examples of total output of screed heating:- Working width 2.4 m- Working width 3.1 m
57007400
Watt
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9.0 Operating the electric heating
9.1 Switchbox for heating system
� The arrangement of the individual elements may vary slightly!
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Item Designation
1 EMERGENCY STOP button
2 Check button for insulation monitoring and insulation error pilot lamp
3 Insulation monitoring reset button
4 Generator telltale lamp
5 Heating ON/OFF
6 Circuit breaker for heating section 1
7 Circuit breaker for heating section 2
8 Circuit breaker for heating section 3
9 Circuit breaker for heating section 4
10 Heating section 1 telltale lamp
11 Heating section 2 telltale lamp
12 Heating section 2 telltale lamp
13 Heating section 4 telltale lamp
14 Headlights On / Off (sockets 25+26)
15 Headlights On / Off (sockets 27+28)
16 Circuit breaker for sockets 25+26
17 Circuit breaker for sockets 27+28
18 Socket (heating) for main screed on left
19 Socket (heating) for main screed on right
20 Socket (heating) for extendable part on left
21 Socket (heating) for extendable part on right
22 Circuit breaker for generator telltale lamp
23 Main fuse and EMERGENCY STOP trigger
24 Control and monitoring unit STC2000
25 230 volt socket for additional headlight
26 230 volt socket for additional headlight
27 230 volt socket for additional headlight
28 230 volt socket for additional headlight
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9.2 General information on heater
The electric heating system is suppliedwith power by a generator on board thepaver which is fully automatically con-trolled in accordance with requirements.Heating resistances in the form of heat-ing strips ensure a direct temperaturetransition and an even distribution ofheat.Each screed section is heated by threeheating strips. Two can be found on thebottom plate and one on the tamperknife.The temperature display and tempera-ture control are conducted independent-ly of one another and in a continuousmanner for: The temperature displayand temperature control are conductedindependently of one another and in acontinuous manner for: main screed,left, main screed, right, extendable part,left and extendable part, right by meansof control unit STC2000 on the switchcabinet of the heating system.The heating is connected to other fittedscreed components through simple plugconnections.As an option, the switch cabinet can alsobe fitted with additional 230 volt socketsfor external consumers (e.g. additional lighting).Since there is no dealing with fuels (gas, diesel) and insulation monitoring is conduct-ed, the best possible operator protection is provided.
� Beware of hot surfaces. Risk of burning.
� Maintenance and repair work on electric systems with medium voltage levels, e.g. thescreed heating, may only be carried out by electricians or persons instructed in tech-nical electrical work and when using the appropriate test devices.Compliance with the relevant technical electrical protection precautions should al-ways be ensured. Danger to life as a result of accidents with medium voltage levels.
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9.3 Insulation monitor
A function check of the insulation moni-toring protective measure must be con-ducted every day before starting work.
� This check only tests the function of theinsulation monitor and not whether an in-sulation error has occurred on the heat-ing sections or consumers.
- Start paver engine.- Move heating system switch (1) to
ON.- Press test button (2).- The pilot lamp integrated in the test
button signals „insulation error“- Press reset button (3) for at least 3
sec. to delete the simulated error.- The pilot lamp goes out.
� If the test is conducted successfully,work may be undertaken with the screedand external consumers may be used.If the „insulation error“ pilot lamp displays an error even before the test button ispressed or if no errors are displayed during simulation, work must not be undertakenwith the screed or with connected external fixtures.
� Screed and fixtures must be checked and/or repaired by an electrician. Workmay only be undertaken again with the screed and fixtures once such checks/repairs have been conducted.
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Danger of electric voltage
� Any failure to follow the safety precautions and safety regulations when operating theelectric screed heating, leads to a risk of electric shock.Danger to lifeWithout exception, all maintenance and repair work on the screed’s electric systemmust be carried out by an electrician.
Insulation errors
� If an insulation error occurs during operations and the pilot lamp displays an insula-tion error, the operator may proceed as follows:
- Switch the switches of all external fixtures and the heating system to OFF and pressthe reset button for at least 3 seconds to delete the error.
- If the pilot lamp does not go out, the error is on the generator.
� No further work may be conducted.
- If the pilot lamp goes out, the switches of the heating system and external fixturescan be switched back to ON one after another until a message again appears andthe system is shutdown.
- The fixture found to be faulty should be removed and/or must not be engaged andthe reset button must be pressed for at least 3 seconds to delete the error.
� Operations may now be continued; of course without the faulty fixture.
� The generator or electrical consumer found to be faulty must be checked and/or repaired by an electrician. Work may only be undertaken again with thescreed and fixtures once such checks/repairs have been conducted.
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9.4 Checking and operating heater
� In order to reach the temperature re-quired, the heating should be switchedon approx. 15 - 20 minutes before thestart of paving.
- Switch on paver engine.- Switch on heating system ON / OFF
switch (1).
The heating system is activated and theheating process begins.During the heating process, the heatingtelltale lamps (2) of the individual screedparts light up.Once the set temperature has beenreached, the telltale lamps go out one af-ter another.
Once all screed parts have reached thetemperature required, paving operationsmay begin.
If additional heating occurs during the paving operations, this is indicated by the tell-tale lamps (2), respectively.
� The heating telltale lamps in the control and monitoring unit (3) can also be observed.
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9.5 Temperature display, setting temperature level
The temperature display and setting of temperature level for the individualscreed elements are undertaken via the control and monitoring unit in thescreed heating unit’s switch cabinet.
9.6 Operating the control and monitoring unit
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Pos. Designation / function
1 Display. Nominal and actual temperature display. Error code display.
2Auto / OFF button- Starts and stops the system. When in the “OFF” switch position, “OFF” is
shown in the display.
3Increase in nominal temperature on the selected screed section.- If pressed briefly, the current temperature setting for the screed section
selected is displayed.
4Reduction in nominal temperature on the selected screed section.- If pressed briefly, the current temperature setting for the screed section
selected is displayed.
5 Select main screed, left
5a
Telltale lamp (green/red) - Not illuminated: screed temperature < operating temperature- Illuminated permanently, green: screed temperature OK (+/- 3° C of
nominal temperature) - Flashing, green: screed temperature too high (> +3°C of nominal tem-
perature)- Illuminated permanently, red: Malfunction! Screed section heating
switched off, error code shown on display.- Flashing, red: A temperature sensor is defective. The heating continues
to operate.
5bTelltale lamp (yellow) - ON: screed section heating on- OFF: screed section heating off
6 Selection of extendable part, left
6a Telltale lamp (green/red)- refer to (5a)
6b Telltale lamp (yellow) - refer to (5b)
7 Selection of main screed, left
7a Telltale lamp (green/red) - refer to (5a)
7b Telltale lamp (yellow)- refer to (5b)
8 Selection of extendable part, right
8a Telltale lamp (green/red) - refer to (5a)
8b Telltale lamp (yellow) - refer to (5b)
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9.7 Temperature setting
- Select screed section by pressing but-ton
- Depending on how you want tochange the temperature, press button(3) or (4).
- The current nominal temperature isshown first. An adjustment in the cor-responding direction is undertaken af-ter 1.5 seconds.
� When changing the temperature setting,4 dots light up on the display.
9.8 Error messages
When an error occurs, the small redlamp (5a, 6a, 7a, 8a) for the relevantscreed section lights up and the corre-sponding heating is switched off.The error code and faulty screed sectionare shown on the display.If several errors occur, the last error tooccur is shown on the display; the errorswhich occurred previously can be calledup to the display by pressing the relevantbuttons.To delete the error display, the error firsthas to be rectified and then the relevantsection button pressed until the smallred lamp goes out.
Error codes
� Heating remains in operation for as long as at least one temperature sensor is func-tioning.If the temperature sensor of e.g. a central section fails, the heating is switched to thesensor of another central section.A similar function is provided for the extendable parts.
Error code Meaning
50 - Defective temperature sensor
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9.9 Switching off the heater
At the end of work or when the heater isnot required:
- Switch off ON/OFF switch (1) of heat
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10.0 Maintenance
! WARNING !
Components bearing this symbol may only be opened, checkand replaced by professional electricians!
10.1 Daily before starting work
10.2 250 operating hours - National requirements apply without restriction
� To be carried out in addition to daily and monthly maintenance!
Maintenance Lubricant see
1. Check insulation monitoring„Insulation moni-tor”
Maintenance Lubricant see
1.Have electrician check the electric system of the screed heating
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11.0 Check points
11.1 Insulation monitor
A function check of the insulation moni-toring protective measure must be con-ducted every day before starting work.
� This check only tests the function of theinsulation monitor and not whether an in-sulation error has occurred on the heat-ing sections or consumers.
- Start paver engine.- Move heating system switch (1) to
ON.- Press test button (2).- The pilot lamp integrated in the test
button signals „insulation error“- Press reset button (3) for at least 3
sec. to delete the simulated error.- The pilot lamp goes out.
� If the test is conducted successfully,work may be undertaken with the screedand external consumers may be used.If the „insulation error“ pilot lamp dis-plays an error even before the test button is pressed or if no errors are displayed dur-ing simulation, work must not be undertaken with the screed or with connectedexternal fixtures.
� Screed and fixtures must be checked and/or repaired by an electrician. Workmay only be undertaken again with the screed and fixtures once such checks/repairs have been conducted.
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Danger of electric voltage
� Any failure to follow the safety precautions and safety regulations when operating theelectric screed heating, leads to a risk of electric shock.Danger to lifeWithout exception, all maintenance and repair work on the screed’s electric systemmust be carried out by an electrician.
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12.0 Safety certificate
ECERT.jpgr
SERVICEIn case of operational failures and questions related to parts, please, contact one of our au-thorised service representations. Our skilled specialists will arrange for the fast and pro-fessional repair.
OPERATING ADVICEAnytime when our dealers cannot help you, please, feel free to contact us directly. The team of our "Technical Advisors" is at your disposal.
TRAINING/EDU-CATIONWe offer our Customers various training programmes on DYNAPAC equipment in our specialised training centre in our factory. We hold train-ing sessions also for special arrange-ments in addition to courses and programs held on fixed dates
Don’t hesitate to contact
your local dealer for:service
spare partsdocumentation
accessoriesand
information about the complete
Dynapac paving and planing
range
