Baoli CPD30J - Page 55

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3.2.2 Inspection after reassembling the steering system
(1) Turning the steering hand-wheel right and left to the bottom, inspect whether
strength of left and right steering is uniform, the steering power is smooth.
(2) Inspect whether connection of the hydraulic pipeline and left and right steering is
correct.
(3) Lift up the rear wheels and slowly turn the steering hand-wheel right and left
several times to exhaust air from the hydraulic pipeline and the steering cylinder.
3.2.3 Troubleshooting of steering system
Problem
Analysis of trouble
Remedy
Fail to turn
hand-wheel
Pump damaged or broke down
Replace
Hose or joint damaged or
pipeline blocked
Clean or replace
Difficult to
turn hand-wheel
Too low pressure of the relief valve
Adjust the pressure
Air in steering oil circuit
Exhaust air
Steering unit fail to reposition due to
spring piece damaged or elasticity
insufficient
Replace spring piece
Oil leakage in the steering cylinder
Inspect the seal of the
piston
Truck’s snaking
or moving with
oscillation
Spring damaged or elasticity insufficient
Replace
Excessive noise
Too low oil level in the oil tank
Refill oil
Suction pipeline or oil filter blocked
Clean or replace
Oil leakage
Seals of guide sleeve, pipeline or joint
damaged
Replace
Note:
The steering motor is controlled by direction switch, it will run only when the direction
switch is on forward or backward position and pressing the accelerator pedal.
When exhausting, start the steering motor by lightly turning the hand-wheel. If occurs
abnormal performance, turn off the power source and find out the trouble to remedy it.
The hand-wheel must be convenient and flexible and the steering wheel can be deflected.
Do the steering left and right several times, and then the air in the steering system can be
exhausted.