Case WX185 - Axles

TROUBLESHOOTING
5-17
AXLES
PROBLEM POSSIBLE CAUSE CORRECTION
Ring gear teeth broken
outside.
Excessive gear load compared to the
one foreseen.
Replace bevel gear.
Gear adjustment wrong (excessive
backlash).
Follow carefully the recommended
operations for the adjustment of bevel
gear set backlash.
Pinion nut loose. Tighten pinion nut.
Ring gear teeth broken inside. Load bump. Replace bevel gear.
Gear adjustment wrong (insufficient
backlash).
Follow carefully the recommended
operations for the adjustment of bevel
gear set backlash.
Pinion nut loose. Tighten pinion nut.
Ring gear teeth or pinion teeth
damaged or scored.
Insufficient lubrication.
Contaminated oil.
Incorrect lubrication or depleted
additives.
Use proper lubrication, fill up to right
level and replace at recommended
intervals.
Worn out pinion bearings that cause
an incorrect pinion axle backlash and
wrong contact between pinion and
ring.
Replace bevel gear.
Overheated ring and pinion
teeth.
Prolonged functioning at high
temperatures.
Replace bevel gear.
Incorrect lubrication.
Low oil level.
Contaminated oil.
Use proper lubrication, fill up to right
level and replace at recommended
intervals.
Drive pinion teeth pitted. Excessive use. Replace bevel gear.
Insufficient lubrication. Use proper lubrication, fill up to right
level and replace at recommended
intervals.
Axle beam body bent. Vehicle overloaded.
Damaged vehicle.
Load bump.
Replace axle beam body.
Bearings worn or pitted. Insufficient lubrication.
Contaminated oil.
Use proper lubrication, fill up to right
level and replace at recommended
intervals.
Excessive use. Replace bearings.
Pinion nut loose. Tighten pinion nut.