Chery A15 / 480 LHD model. Manual — part 138

9 5

)

!

: ! / 7

! *"

&&

9 '

7!

&&

9 '

% *

7! :%

&&

9 ''

( !

(!& : ! / &&

9 '-

*& 7

! : ! / &&

5

9

( !

! : ! / &&

STEERING SYSTEM

INTRODUCTION OF STEERING SYSTEM . . … . … . … . … N-2

INTRODUCTION OF STRUCTURE . … . . … . . … . N-2

WORKING PRINCIPLE … . … … . . … . … … . . …N-3

INTRODUCTION OF PERFORMANCE … … . . … . . … . N-4

REMOVAL/INSTALLATION OF STEERING COLUMN . . … . …N-5

REMOVAL/INSTALLATION AND CHECK OF STEERING GEAR . . …N-6

REMOVAL/INSTALLATION AND REPAIR OF MAIN BODY OF STEERING

GEAR . … … . … . … . . … . … . … . . N-7

CHECK OF STEERING SYSTEM . . … . … … . . … …N-18

REGULAR INSPECTION . … . … . … . … . … . … …N-18

CHECK OF THE SEAL OF POWER STEERING SYSTEM . … . … …N-19

CHECK AND REPLACEMENT OF THE HYDRAULIC POWER OIL… . … N-20

EXHUAST OF THE STEERING HYDRALIC SYSTEM … . … . … …N-20

CHECK OF THE OUTPUT PRESSURE OF POWER STEERING PUMP … …N-21

CHECK OF THE TENSION OF THE BELT… . . … . … . … …N-21

DIAGNOSIS AND TROUBLESHOOTING OF POWER STEERING SYSTEM … N-22

PRECAUTION OF STEERING SYSTEM MAINTENANCE … . . …N-26

INTRODUCTION OF STEERING SYSTEM

INTRODUCTION OF STRUCTURE

The structure of the Power Steering System is shown as Figure 1:

The rack & pinion power steering gear is composed of three sections: control valve,
mechanical steering gear and servo cylinder. The control valve is widely utilized overseas due
to its advanced structure and high sensitivity. The mechanical steering gear is rack & pinion
pattern.

※Control Valve

·The control valve is a normally open rotary valve and consisted of: torsion bar1, input shaft

2, valve bush 3 and other components. The hydraulic oil flows into the left and right oil
chambers through the pre-opened clearance of the input shaft 2 and the valve bush 3. The
structure is shown as Figure 2.

※Mechanical Steering Mechanism

·The mechanical steering mechanism is rack & pinion pattern and composed of three

sections: pinion shaft, steering rack piston assy and steering link.

※Servo Cylinder

·The servo cylinder has metallic hull, which is divided into right and left oil chambers by the

inner rack piston and connected with the two oil inlets of control valve.

Steering Oil Pump

Steering Oil Reservoir

Steering Hose

Power Steering Gear

Figure

1