Problem
PossibleCauseCorrectiveAction
1.Theengineloadisexcessive.
1.Reducethegroundspeedofthe
machine.
2.Theoillevelintheengineislow.2.Addoilintotheenginetotheproper
oillevel.
Theengineoverheats.
3.Thecoolingnsandairpassagesfor
theenginearepluggedwithdirtor
debris.
3.Cleanthecoolingnsandtheair
passages.
1.Theairpressureinthetiresisnot
correct.
1.Adjustairpressureinthedrivetires.
2.Thesteeringlinkageisdamaged.2.Replacesteeringlinkage.
3.Thefrontwheeltoe-outisnotcorrect.3.Alignthefrontwheels;refertoAligning
theFrontWheelsprocedure.
4.Thefrontwheelaxlesarebentor
damaged.
4.Repairorreplacethefrontwheelaxles.
Themachinepullstotheleftortheright
(withsteeringcontrolfullyforward).
5.Thesteeringcontrolisbentor
damaged.
5.Repairorreplacethesteeringcontrol.
Themachinedoesnotdrive.1.Thebypassvalveisnotclosedtight.
1.Closethebypassvalve.
1.Theengine-mountingboltsareloose.1.Tightentheengine-mountingbolts. Themachinevibratesabnormally.
2.Thecouplingboltsandnutsforthe
driveshaftareloose.
2.Tightentheappropriatefasteners.
1.Thereisdebrisbuildupattheimpeller.
1.Cleantheimpeller.
2.Thehopperscreenisplugged.
2.Cleanthehopperscreen.
3.Theimpellermotorislooseor
damaged.
3.Repairorreplacetheimpellermotor.
4.Anelectricalcomponentforthe
impellermotorsystemisopen.
4.Checktheelectricalconnections.
5.TheimpellerOn/Offswitchisinthe
OFFpositionortheimpellerspeed
controlissettooslow.
5.SettheimpellerOn/Offswitchtothe
ONpositionandcheckthepositionof
theknobfortheimpeller-speedcontrol.
6.Theimpeller-drivepinismissing.6.Replacethedrivepin.
Theimpellerdoesnotrotate.
7.Thebearingsfailedintheimpeller
motor.
7.Replacethebearingsinthemotoror
themotorassembly.
1.Theimpellerisdirtyordamaged.
1.Clean,repair,orreplacetheimpeller.
2.Thespreader-patterncontrolisnot
adjustedproperly.
2.Adjustthespreader-patterncontrol;
refertotheAdjusttheSpreaderPattern
procedureintheUsingtheSpreader
section.
3.Thesprayernozzlesareclogged.
3.Cleanorreplacethenozzles.
4.Thehopperscreenisplugged.
4.Cleanthehopperscreen.
5.Materialinthehopperisclumpedover
thegate.
5.Checktoseeiftheagitatorpinforthe
shaftoftheimpellermotorispresent.
Thespreaderorsprayerpatternisuneven.
6.Thediffuserrampsettingisincorrect.6.Adjustthepositionofthecontrolcable.
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