Lifan 620 Maintenance Manual page 120

Fault
After steering, the steering
wheel will not go back to the
central position without the
assistance of the driver.
Besides, it may feel obstructed
or unsmooth when the driver
turns the steering wheel to the
central position.
Steering feels heavy when
steering and parking at the
road side
Oil leakage
The accessory drive belt utters
a long shriek (especially while
the steering wheel turns to the
end and parking the vehicle at
the original position)
Chatter from the steering pump
Noise from power steering
pump
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Table 2-3 (Continued 2)
Possible Cause
Blocked or broken tie-rod.
Broken or worn front
suspension components.
Incorrect toe adjustment.
Blocked column bearing.
Contaminated steering oil.
Insufficient power steering
pump oil.
Incorrect tension of the
accessory drive belt.
Leakage in the hose or outer
cooler.
Incorrect engine idle speed.
Loose or distorted power
steering pump belt pulley.
Power steering pump flow or
pressure out of specification.
Obstructed hose or cooler
pipeline.
Contaminated steering shaft.
Air in steering oil.
Excessively filled system.
Leakage in components.
Check if the tension of the
accessory drive belt is correct
or if the belt skids.
Loose or broken accessory
drive belt.
Insufficient oil and possible
leakage.
Power steering pump.
119
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Actions
Install a new steering gear if necessary.
Install new front suspension components if
necessary.
Adjust it if necessary.
Install a new steering column.
Wash the power steering system.
Refill the oil if necessary and check if there is
oil breakage.
Check the tension of the accessory drive belt.
Repair or install a new hose or cooler if
necessary.
Refer to the air discharge of power system.
Install a new power steering pump belt pulley.
Check the pump flow and pressure. Refer to
the pump flow and pressure test in this chapter.
Clean the hose or cooler or install a new one if
necessary.
Check if there are foreign materials or
contamination in the system. Wash the power
steering system.
Discharge the air in the system.
Correct the fluid level height.
Find out the suspicious component and repair
it if necessary.
Install a new accessory drive belt if necessary.
Install a new accessory drive belt.
Refill the oil to the specified height.
Discharge the air in the system.
Check if there is a leakage. Repair it if
necessary.
Install a new power steering pump if necessary.