3-4
- Replace
- Clean
- Replace
Problem
Continuous metallic groan
1) During acceleration
2) During travelling at
uniform speed
3) When turning corners.
Worn out gears.
Pinion and bevel gear meshed too
deeply.
Lack of gear oil.
Worn out gears.
Loose or worn out bearing.
Loose bevel gear wheel
Worn out differential gear or thrust
washer.
- Adjust back-lash or replace gears.
- Refill
- Replace
- Adjust preload or replace.
- Replace bolts and washers. Tighten
new bolts and washer.
- Replace
Probable cause Remedy
Continuous knocking sound
1) During travelling at
uniform speed
Chipped gear teeth.
Foreign matter in axle case.
Worn out spline of drive shaft.
- Lower oil level
- Replace
- Retighten
- Replace
- Replace
- Replace
- Replace
- Repair or replace
- Replace
- Replace
Oil leakage
1) Differential housing
housing leaks.
2) Axle case leaks
3) Hub, leaks
Power is not transmitted
1) Drive shaft, gear
Oil level too high
Broken oil seal
Mounting bolts for housing loose.
Damaged packing case cracked.
Worn out hub grease seal.
Worn out oil seal.
Worn out bearing or eccentric rotation
due to damage.
Broken or slipped out drive shaft.
Gear teeth stripped or worn out.
broken differential case parts.
GROUP 2 TROUBLESHOOTING
Oil leakage on wheel shaft
Oil leakage on housing
cover
Radial shaft seal wrongly installed or
damaged.
Race on wheel shaft damaged.
Remove wheel shaft and install a
new radial shaft seal.
Remove wheel shaft. Check wheel
shaft race for reusability; if possible,
rework.
Housing cover not sealed.
Housing cover or housing plane
face uneven.
Bolts not tightened according to the
specified tightening torque.
Seal housing cover with LOCTITE
No. 574.
Touch up plane faces with oil
rubber.
Tighten bolts with the specified
tightening torque.