AXLES/DRIVE SHAFTS/WHEELS AND TIRES CD3340B/YB4411
8-8
Published 04/07/2015 Control # 569-00
FRONT DRIVE AXLE PROBLEMS AND
DIAGNOSIS
Table 8-1
PROBLEM CAUSE RECOMMENDED REPAIR
Noise while driving
1. Excessive play between pinion
and bevel gear
2. Worn pinion and bevel gear.
3. Worn pinion bearings
4. Pinion bearing loose
5. Excessive axle pinion play
6. Worn differential bearings
7. Differential bearings loose
8. Bevel gear out of roundness
9. Low lubricant level
10. Poor or wrong lubricant
11. Bent halfshaft
1. Adjust.
2. Replace
3. Replace
4. Adjust.
5. Adjust preload only.
6. Replace
7. Adjust preload.
8. Replace
9. Add lubricant
10. Replace
11. Replace
Noise while moving in neutral
1. Noises coming from axle are
usually heard when crane moves
in neutral gear, but are not loud
2. Incorrect play between pinion and
bevel gear (sound heard while
decelerating disappears while
increasing speed
3. Pinion or input flange worn out
1. Replace or adjust (see above)
2. Adjust.
3. Replace
Intermittent noise
1. Bevel gear damaged
2. Differential housing bolts loose
1. Replace bevel gear set
2. Tighten to torque.
Constant noise
1. Bevel gear or pinion damaged
2. Worn bearings
3. Pinion spline worn
4. Bent halfshaft
1. Replace bevel gear set
2. Replace
3. Replace
4. Replace
Noise while steering
1. Worn differential gears
2. Worn differential housing or spider
3. Differential thrust washers worn
4. Half shaft spline worn
1. Replace
2. Replace
3. Replace
4. Replace
Reference Only
To Next Page
Loading...
Need help?
General
