LGMG MT86 - Page 114

MT86 Operation and Maintenance Manual
108
Common faults
Causes
Troubleshooting methods
blocked
4. Steering valve is jammed
5. Steering gear is too tight
6. Connection is loose
4. Regulate or replace steering valve
5. Adjust clearance
6. Check and adjust it
Different left-right st
eering degree
1. Steering valve is asymmetric
2. Control valve is blocked with dirt
3. Leakage at both sides of steering
gear differs
4. Air exists in single cavity
5. Master pins and camber of tires
at both sides are asymmetric
1. Regulate or replace valve
assembly
2. Clean control valve
3. Replace sealing ring
4. Exhaust air
5. Adjust parameters of truck
Heavy fast steering
1. Oil in oil pump is insufficient
2. Inner leakage of steering gear is
severe
3. Air invades into oil passage
1. Maintain oil pump and refill oil
2. Maintain and replace seals
3. Check tightness and connections
and exhaust air
High oil temperature
1. Oil pipe is bent
2. Oil passage is blocked
1. Clean or replace it
2. Dredge oil passage
Run-off
1. Steering shaft has jammed
2. Steering valve is asymmetric
3. Flow of oil pump is excessive
4. Oil is too dirty and steering valve
cannot return immediately
5. Wear or pressure of tires on both
sides differs greatly
6. Bubbles exist in oil and direction
is unstable
1. Check jamming position and
check if input axle is subjected to
radial shear
2. Regulate or replace valve
assembly
3. Regulate or replace oil pump
4. Clean and change oil
5. Replace tire or inflate
6. Check and exhaust air