MT86 Operation and Maintenance Manual
107
5) Common fault causes and troubleshooting methods
1. Oil in oil tank is insufficient
2. Air invades into oil passage
3. Filter or oil passage is blocked
4. Oil pump pressure is insufficient
5. Inner leakage of steering gear is
severe
6 Front wheels (braking non-return)
are blocked
7. Tire pressure is insufficient
8. Steering column interferes with
universal joint
9. Overload
1. Check oil level of oil tank and
refill it as specified
2. Exhaust and check oil level and
tightness of pipeline connectors
3. Clean filter or dredge or replace
oil passage
4. Maintain oil pump
5. Identify leakage and repair
6. Regulate or replace it
7. Inflate
8. Adjust it
9. Reduce load
Steering gear oil
leakage
1. Oil seal or O ring is damaged
2. Oil pipe is damaged
3. Oil pipe joint leaks oil
4. Oil viscosity is insufficient
1. Check and replace oil seal or O
ring
2. Check and replace oil pipe
3. Replace sealing ring and tighten
connectors
4. Use oil properly
Oil spillage from oil
tank
1. Level is too high
2. Oil inlet is blocked
3. Oil pump is worn
1. Adjust it
2. Dredge oil passage
3. Replace it
1. Tire pressure is insufficient
2. Air invades into oil passage
3. Oil return hose is twisted and
1. Inflate
2. Perform maintenance and exhaust
3. Replace it