Gradall 544D (9136-4003) Service Manual - Manual (Page 286)

RICERCA GUASTI
Mod. 28.46M TROUBLESHOOTING
LA10077
E.1
PAG . 79
REVISION DATE : 00/00 P / N : CA357248
Side gear spline worn out.
Replace all scratched washers
(Excessive backlash) Excessive use Replace differential gear group.
Replace halfshaft if required
Thrust washer surface worn out or
scratched. 1. Insufficient lubrication
2. Incorrect lubrication
3. Contaminated oil Use correct lubrication and fill up to right
level.
Replace at intervals recommended.
Replace all scratched washers and those
with 0,1mm thickness lower than the new
ones.
Inner diameter of tapered roller bearing
worn out. 1. Excessive use
2. Excessive pinion axial backlash
3. Insufficient lubrication
4. Contaminated oil Replace bearing.
Check pinion axial backlash.
Use proper lubrication, fill up to right level
and replace at recommended intervals.
Bent or broken halfshaft Vehicle intensively operated or
overloaded Replace
Halfshaft broken at wheel side 1. Wheel support loosened
2. Beam body bent Replace
Check that wheel support is not worn out
or wrongly adjusted.
Problem Cause Action