Chery A21 2005, Service Manual, Page: 233 / 475

CHERY A520 SERVICE MANUAL CHASSIS
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CHAPTER II STEERING SYSTEM
SECTION I INSTRUCTION AND
OPERATION
I. SAFETY REGULATIONS ON POWER
STEERING SYSTEM
If the risk of electrical short circuit exists in
the operation process, the earthing lead
should be cut off; the negative pole connector
of the storage battery should be covered;
internal screw threads should be recut onto
the bolts using locking glue and the external
threads should be cleaned up; and locking
glue should be used in the case of bolt
insertion and locknut should be regularly
replaced.
Heat treatment should not be carried out on
the
components of steering system;
otherwise, the possible variation of material
feature shall impact a negative influence on
the operation safety of vehicles.
Only approved special steering fluid can be
used and the discharged steering fluid should
not be reused.
In the wake of accident occurrence, not only
the chassis alignment shall be inspected
(chassis alignment should be inspected at any
circumstance),
but also other chassis
components should be carried out visual
inspection to see whether there is curve or
bull crack.
II. INSTRUCTION ON POWER
STEERING PUMP
Power steering pump is a vane pump, which
shall provide hydraulic pressure to the
system. Power steering pump consists of
components as follows:
Drive shaft
Steering pump body
Steering pump ring
Pressure plate
Thrust plate
Flow control valve
Rotor
Vane
The aperture at the rear part of the steering
pump body should include components as
follows:
Steering pump ring
Pressure plate
Thrust plate
Rotor
Vane
End plate
The small aperture at the flank of the steering
pump body should consist of components as
follows:
High-pressure hose connector
Flow control valve
Spring
Flow control orifice is an integral part of
high-pressure hose connector. The pressure
relief valve in the flow control valve shall
control the pressure of steering pump.
III. INSTRUCTION ON POWER
STEERING GEAR
The movement of steering wheel shall play
functions as follows:
1. The movement of steering wheel shall be
passed to the pinion.
2. The movement of pinion shall be passed
to the gear.
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