Chery Fora (Elara A520). Manual — part 121

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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3.

The gear of pinion mesh with that of the
gear rack.

4.

This shall make the gear rack move.

Pinion and rack power steering system is
furnished with a rotary valve type control
valve, which facilitates the steering fluid to
flow toward the rack piston. Monoblock rack
piston is connected with gear rack and its
functions as follows:

1.

Rack piston converts hydraulic pressure
into linear force.

2.

Linear force makes the rack under
side-to-side movement.

3.

Linear force is passed to the internal and
external steering tie rod and steering
knuckle.

4.

Steering knuckle rotates vehicle wheel.

Note: if there is no hydraulic power system,
bigger steering force shall be needed.

IV. INSTRUCTION ON STEERING
WHEEL AND STEERING COLUMN

The steering column components shall play
the functions except for steering. The
depicted functions shall be achieved by the
steering column components as follows:

1.

Steering column

Steering column absorbs energy. When
frontal collision occurs, the steering column
shall retract in order to reduce the probability
of hurt to the driver.

2.

Ignition switch and steering lock on the
steering column.

The ignition switch and steering lock
installed onto the steering column can lock
the vehicle in an effort to prevent the vehicle
from being stolen.

3.

Combination switch

Multi-functional driving handle controls
components as follows:

- Headlight high beam

- Windscreen wiper and washer

Steering column disassembly and reassembly
adopt specified screws and bolts to ensure
energy absorption to give an effect on the
external force existing on the steering
column.

During

the

conveying

after

dismantling it from vehicle, special caution
should be taken.

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SECTION II SPECIFICATIONS OF ASSEMBLY TORQUE

Tightening

Torque

Number Of

Vehicles

Affiliated Assemblies

25±3

3

Bracket And Low Right Bracket Of Secure Steering
Column

25±3

1

Connection Universal Connector And Steering gear

10±1

4

Secure steering sleeve bracket

10±1

1

Secure Clamp A21-3406423

10±1

1

Secure Clamp BracketⅠ

10±1

2

Secure Clamp Bracket Ⅱ

10±1

2

Secure Heat shield of Steering gear

35±3

2

Tie rod end And Steering Knuckle

75±5

4

Secure Steering gear And Subframe

75±5

2

Secure Steering gear And Subframe

25±3

2

Secure Steering oil reservoir

25±3

1

Secure clamping sleeve

25±3

1

Secure Steering Oil Pump

180±15

2

Subframe Front And Vehicle Body Connections

80~90

2

Subframe Rear And Vehicle Body Connections

80~90

2

Ball Pin Of Control Arm And Steering Knuckle

25±2

4

Stabilizer Bar Clamp

50±3

2

Connect Stabilizer Bar with Extension Bolts

60±5

2

Connect Rear Mounting with Transmission

70±5

4

Connect Rear Mounting with Subframe

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SECTION III DISASSEMBLY AND
ASSEMBLY OF STEERING SYSTEM

DISASSEMBLY OF STEERING GEAR

DISASSEMBLY:

I.

DISASSEMBLE

UNIVERSAL

CONNECTOR OF STEERING SHAFT

1.

Loosen the fastening bolts of universal
connector.

II. DISMOUNT SUBFRAME ASSEMBLY

1.

Discharge the power steering system
(Refer to steering system fluid)

2.

Disassemble the power steering system
pipeline.

3.

Hoist the vehicle and dismount the two
front wheels.

4.

Loosen the fixed nuts of left and right tie
rod ends.