Download - Dozer PDF Sample
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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.