Agrison HP ULTRA Series Operation Manual page 47

2.18.1.3 Faults and solutions of rear axle and brake
Symptom
1. The main drive has large
noise.
2. The bearings of bevel
pinion and differential are
too hot.
3. The final drive has
abnormal sound.
4. The brake is in failure.
5. The tractor wanders when
braking.
Operation Instruction
Reason
1. The bearing clearance of bevel
pinion is too large.
2. The gear fails to engage normally.
3. The bearing or gear of bevel gear
pair is damaged.
4. The differential shaft is worn or
locked.
5. The planet gear or washer is worn.
6. The differential bearing is worn or
damaged.
1. The pretightening force is too
large.
2. The lubrication is poor.
3. The backlash of bevel gear pair is
too small.
1. The bolts of planet carrier are
loose, and the retaining washer is
damaged.
2. The bearing, gear or shaft is
damaged.
1. The free travel of brake pedal is
too large.
2. The friction plate is worn severely
or partly.
1. The free travel of left and right
brake pedal is different.
2. The braking friction place at one
side is damaged.
3. The air pressure of two rear tires is
different.
Solutions
1. Adjust it as required.
2. Readjust it as required.
3. Replace the bearing or gear.
4. Replace the differential shaft.
5. Replace the planet gear or washer.
6. Replace the differential bearing.
1. Readjust the pretightening force of
bearing.
2. Check the lubrication oil level, and refill
it when insufficient.
3. Readjust the backlash.
1. Fasten the fixing bolts of planet carrier
as required, and replace the retaining
washer.
2. Replace the bearing, gear or shaft.
1. Readjust the free travel of pedal.
2. Replace the friction plate.
1. Adjust it.
2. Replace the friction plate.
3. Check it and charge the tire as required.
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