Axle Problem And Diagnosis - JLG G6-42A Supplemental Repair Manual

Mod. 26.25M FR
F.2 Axle problem and diagnosis
Problem
Noise while driving
Noise while driving in neutral
Intermittent noise
Constant noise
Noise while seering
Cause
1. Excessive backlash between pinion
and ring gear
2. Worn out pinion and gear ring
3. Worn out pinion bearings
4. Pinion bearings loosened
5. Excessive axial pinion backlash
6. Worn out differential bearings
7. Differential bearings loosened
8. Ring gear out of roundness
9. Low lubricant level
10. Poor or wrong lubricant
11. Bent halfshaft
1. Noise coming from axle are usually
heard when vehicle moves in neutral
gear but are not loud.
2. Incorrect backlash between pinion and
ring (sound heard while decelerating
disappears while increasing the speed)
3. Pinion or input flange worn out
1. Ring gear damaged
2. Differential box bolts loosened
1. Ring gear teeth or pinion damaged
2. Worn out bearings
3.Pinion spline worn out
4. Bent halfshaft
1. Worn out differential gears
2. Worn out differential box or spider
3. Differential thrust washers worn out
4. Half shaft spline worn out
: 00/00 / : CA357152
REVISION DATE P N
RICERCA GUASTI
TROUBLESHOOTING
R
ecommended repair
1. Adjust
2. Replace
3. Replace
4. Adjust
5. Adjust
6. Replace
7. Adjust
8. Replace
9. Oil level
10. Replace
11. Replace
1. Replace or adjust (see above)
2. Replace
3. Adjust
1. Replace bevel gear set
2. Tighten to torque
1. Replace bevel gear set
2. Replace
3. Replace
4. Replace
1. Replace
2. Replace
3. Replace
4. Replace
F.2 . 91
PAG