Baoli CPDS15 - Page 39

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Fig.3-5 Pre-load adjustment
3.2.2 Inspection after reassembling the steering system
a) Turn the steering wheel left and right, inspect whether the steering power is smooth.
b) Inspect whether the connection of hydraulic pipeline is correct and whether the left
and right steering is opposite.
c) Lift up the rear wheels and slowly turn the steering wheel left and right several times
to exhaust the air from the hydraulic pipeline and the steering cylinder.
3.2.3 Steering system troubleshooting
Problem
Analyses of trouble
Remedies
Fail to turn
hand-wheel
Pump damaged or breaking down.
Replace.
Hose or joint damaged or pipeline blocked.
Clean or replace.
Difficult to turn
hand-wheel
The pressure of the relief valve is too low.
Adjust the pressure.
Air in steering oil circuit.
Exhaust air.
Steering unit fail to recover due to spring
piece damaged or elasticity insufficient.
Replace spring
piece.
Oil leakage in the steering motor.
Inspect the seal of
the piston.
Truck’s snacking
or moving with oscillation
Broken or deteriorated spring.
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.
Notice: The starting of hydraulic motor is controlled by the directional switch. Press
the accelerator pedal, the hydraulic motor will be started only when the directional switch is
in forward or backward position.
When exhausting, start the hydraulic motor, slightly turn the steering wheel left and
right (if anything unusual happens, turn off the power and resolve the problem), the turning
wheels will be turned, then the air in the steering system will be exhausted.