New Holland B95C - Page 423

8-TROUBLESHOOTING
Problem
PossibleCauseCorrection
Vibrationsduringtravel.Incorrectinstallation.
Correcttheinstallation.
Defectiveaxle.
Inspectandrepair.
Wrongweightdistribution.
Distributetheweightdifferently.
Bentorbrokenaxleshaft.
Replacetheaxlebeam.
Breaktowardstheouter
endoftheringgeartooth.
Excessivegearloadcomparedtothepre-
scribedone.
Replacethebevelgear.
Incorrectgearadjustment(excessiveback-
lash).Loosepinionnut.
Carefullyfollowtherecommendedadjust-
mentoperationsforringgearandpinion
backlashandfortoothmarkdetection.
Breaktowardstheinner
endoftheringgeartooth.
Loadcrash.Replacethebevelgear.
Incorrectgearadjustment(insufcient
backlash).Loosepinionnut.
Carefullyfollowtherecommendedadjust-
mentoperationsforringgearandpinion
backlashandfortoothmarkdetection.
Worn-outorscoredPinion
teethandringgearteeth.
Insufcientlubrication.
Replacethebevelgear.
Contaminatedlubricant.Incorrectlubricant
orpooradditives.
Replacethepinionbearings,payingatten-
tiontocorrectlypositiontheringgear,the
pinionandthebearingpreloading.
Worn-outpinionbearingsthatcausean
incorrectpinionaxialbacklashandwrong
contactbetweenpinionandringgear.
Useproperlubricant,lluptothecorrect
levelandchangeatrecommendedinter-
vals.
Overheatedringgear
teethorpinionteeth.
Checkifgearteethhave
faded.
Prolongedoperationathightemperature.Replacethebevelgear.
Unsuitablelubricant.Lowoillevel.Con-
taminatedlubricant.
Useproperlubricant,lluptothecorrect
levelandchangeatrecommendedinter-
vals.
Pitteddrivepinionteeth.Extremelyintenseuse.Replacethebevelgear.
Insufcientlubrication.Useproperlubricant,lluptothecorrect
levelandchangeatrecommendedinter-
vals.
Bentaxlebeambody.
Overloadedvehicle.Vehicle’saccident.
Loadcrash.
Replacetheaxlebeambody.
Worn-outorpitted
bearings.
Insufcientlubrication.
Replacebearings.
Contaminatedlubricant.Extremelyintense
use.Normalwear.Loosepinionnut.
Useproperlubricant,lluptothecorrect
levelandchangeatrecommendedinter-
vals.
Gasketsleakoil.
Prolongedoperationatexcessiveoiltem-
perature.
Replacethegasketandmatchingsurface
ifdamaged.
Oilgasketwronglyinstalled.Gasketedge
cutorscored.Contaminatedlubricant.
Useproperlubricant,lluptothecorrect
levelandchangeatrecommendedinter-
vals.
Excessivewearofinput
angespline.
Intenseuse.
Replacetheange.
Loosepinionnut.
Checkthatthepinionsplineisnotexces-
sivelywornout.
Axialbacklashofpinion.Replacethebevelgear,ifnecessary.
Fatiguebreakofpinion
geartooth.Checkifthe
fracturelineiswavyor
clearlydelineated(stop
line).
Intenseuse.Continuousoverload.
Replacethebevelgear.
Breakofpinionteethand
ringgearteeth.
Crashloadofdifferentialcomponents.Checkand/orreplaceotherdifferential
components.
Splinesofplanetary
gearworn-out(excessive
backlash).
Intenseuse.
Replacedifferentialgearassembly.Re-
placetheaxlebeam,ifnecessary
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