Case 580T - Page 379

8-TROUBLESHOOTING
PROBLEMPOSSIBLECAUSECORRECTION
Noisesemittedbytheaxlewhenthe
vehicleismovingareusuallyheard
duringidling,eventhoughtheyare
nottooloud.
Adjustthebacklashbetweenthering
gearandthepinionorreplacepinion
andringgear.
Incorrectbacklashbetweenpinion
andringgear(thenoiseheardwhile
deceleratingdisappearswhenspeed
isincreased).
Adjustthebacklashbetweenthe
pinionandtheringgear.
Noiseduringidling.
Worn-outpinionsplineorinputange.
Replacethepinion.
Damagedringgear.Replacethebevelgear. Intermittentnoise.
Loosedifferentialboxscrews.
Tightenthescrewstotorque.
Damagedringgearteethorpinion
teeth.
Replacethebevelgear.
Worn-outbearings.Replacethebearings.
Worn-outpinionsplines.Replacethepinion.
Constantnoise.
Bentaxlebeam.Replacetheaxlebeam.
8-17