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Tracked/crawlerdozersarethemostpowerful

andcompact.But,theyareslow,trackswear

quickly,theycandamageconcreteandaremore

difculttotransportbetweenjobs.Theyarebest

touseonunevenandslipperysurfacesbecause

theyhavethebestgrip.

What is a dozer?

What industries do you use a dozer in?

Civilconstruction

Adozer,alsocalledabulldozer,isatractorwithabladeatthefront.Thebladecanliftupordown,tiltand

rotate.Youuseabulldozertomoverocks,treestumpsandearth.Therearetwokindsofdozers:

Rubbertyredozersarefour-wheel-driveand

canarticulate.Theyarestableandcomfortable

onbumpygroundbutarenotgoodinthemud.

Rubbertyredozersarealsocheaperandmore

commononconstructionsites.

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An example of a dozer:

Drivesprocket

Cornertips

Blade

Cuttingedge

Liftcylinder

Radiatormask

Tiltcylinder

Grouserplate

Frame

Trackframe

Frontidler

Cap(withoverhead

protectivestructure)

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Element 1

plan and prepare

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Element 1 Plan and prepare

a) WhatistheNationalOccupationalHealthandSafety(OHS)Actabout?

Performance criterion 1.1

Question 1

Answer:

TheNationalOHSActexplainshowtokeepyour

workplacesafe and healthy.Itexplainswhat

youneedtodotomeetyourdutyofcare.

Forexample:

Youmustmakesureyoudoearthmovingworkinawaythatwontputyourselforothersatrisk.

Youmustuseearthmovingequipmentaccording

toinstructions.

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Element 1 Plan and prepareQuestion 1 continued

b) WhatdoRegulationsexplain?

Answer:

RegulationsexplainthedetailsoftheActs.

Forexample:

TheregulationsinQueenslandgiveyouexamplesofcontrol

measureswhenanexcavationmightcreatearisk.

Examplesofcontrolmeasures:

Plantttedwithsuitableoverheadprotectionagainst

thecollapseoftheexcavation

Benching,batteringorshoringthesidesoftheexcavation

Ahoardingtopreventaccessbypersons

Asecurecoverovertheexcavation Fillingtheexcavationassoonaspossible

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Element 2

ConduCt maChine

pre-operational CheCks

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Element 2 Conduct machine pre-operational checks

Whataresomepre-operationalchecksyoudobeforeusingthedozer?Question 16

Performance criterion 2.1

Answer: Checksmayinclude:

Tyrecondition,tyrepressureandwheelnuts(iftted) Trackconditionandtension(iftted)

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Element 3

operate the dozer

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Element 3 Operate the dozer

Howdoyousafelygetinandoutofthedozerscabin?Question 39

Performance criterion 3.2

Answer:

Alwaysuse3pointsofcontact.

Forexample,usetwohands

andonefootortwofeetand

onehand.

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Element 3 Operate the dozer

Whichwayshouldyoutravelwhendrivingonslopingground?Question 40

Performance criterion 3.2

Answer:

Gostraightupordownthehill,notatanangle.

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Element 4

seleCt, remove

and fit attaChments

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Element 4 Select, remove and ft attachments

Whataresomeattachmentsyoumightuseondozer?Question 63

Performance criterion 4.1

Answer: Youmightuse:

Coalblade Treepusherorpusherblade

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Element 4 Select, remove and ft attachmentsQuestion 63 continued

BullbladeAngleblade

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Element 5

reloCate the dozer

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Element 5 Relocate the dozer

Doyouneedapermitbeforedrivingthedozeronapublicroad?Question 77

Performance criterion 5.1

Answer:

Youmightifthedozeristooheavy,

toolongortoowide.Checkwith

yourlocaltransportauthority(for

example,VicRoadsortheRTA).

Also,ifthedozerisunregistered,

youwillneedanunregistered

vehiclepermit.

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Element 5 Relocate the dozer

Whatkindoflicencedoyouneedtodriveadozerweighingover4.5

tonnesonapublicroad?

Question 78

Performance criterion 5.1

Answer:

Inmoststates/territoriesyouwillneedaheavy

vehiclelicence.Forexample,alightrigid(LR)

licencefor4.58tonnes(8.5insomestates).

Checktherulesforyourstate/territory.

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Element 6

Carry out maChine

operator maintenanCe

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Element 6 Carry out machine operator maintenance

Whatstepsdoyoutakewhenshuttingdownthedozer?Question 82

Performance criterion 6.1

Answer:

2. Parkthedozeronatgroundinaplaceit

wontcauseahazard.

1. Lowerthebladesotheedgeisontheground.

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Element 6 Carry out machine operator maintenanceQuestion 82 continued

6. Lockthecabin.

3. Idletheenginebeforeyouturnitoff.

Stoptheengine.

5. Removethekeys.

4. Pulluptheparkingbrake.

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Element 7

Clean up

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Element 7 Clean up

Afteryouvenishedthejob,whatshouldyoudo?Question 94

Performance criterion 7.1

Answer:

Tellpeoplewholiveintheareathatthework

isnished

Cleanthejobsite

Throwawayanyrubbishandrecyclewhatyoucan

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Element 7 Clean up

Whatisthedangerofleavingearthandrocksonpublicroadsandfootpaths?Question 95

Performance criterion 7.1

Answer:

Someonemighttripon

arockandbeinjured.

Rocksleftontheroad

candamagecars.