Page 507 - Foton Workshop Manual - Auman EST-M
P. 507
Diagnosis - Mechanical fault diagnosis DI - 453
Failure phenomenon Possible reason Failure elimination IN
Fill in oil in the oil tank of oil pump,
DI
The steering wheel returns too much or 1. Steering gear (with air) then performing steering operation and
loose in steer exhaust the air
ing Take off the steering device from the EG
2. Steering gear (loose)
vehicle for adjustment
Emulsion foam in dynamic steering
1. Oil is mixed with air. Exhaust
liquid TR
1.Hydraulic system (lack of oil) Oiling to specified height
AX
Exhaust and check the oil level and the
2.Hydraulic system ( with air )
tightness of pipeline joints
FR
Replace the filter element and clean the
3. The filter screen of steering oil pipe
inlet line between the steering line and
Two side steering all heavy (damaged or blocked)
steering pump ST
4.The pressure of steering oil pump
Check and repair the oil pump
(insufficient) BR
5.The front wheel locks (the brake fails
Check and repair the stuck part of brake BW
to return.)
Oil tank lack of oil, fill in oil and check
1.Oil supply for oil pump (insufficient) EL
or repair the oil pump
2.Both sides of the piston inside the
steering gear (excessive oil leakage,
Heavy in rapid steering Replace the oil seal
mainly due to seal damage or excessive
abrasion)
Exhaust and check the tightness of
3. Suck air
connecting parts
1.The flow of steering oil pump (too
Replace the oil pump
large)
2.The bending radius of oil pipe is too
Steering gear overheated (over the small or the internal disruption results in
Replace the oil pipe
environment temperature of 65° ) the poor smoothness of oil flow and
heating.)
3. Steering to the limiting positions at Avoid steering to the limit positions at
the two ends for more than 5 sec. two ends
DI-453
