2006 GREAT WALL DEER drive shaft

SR-11Steering System
Power Steering (General Introduction)
power steering oil pump
power steering gear steering drive shaft
oil cup
Power steering
Introduction
Principal of Power Steering
The power steering is a kind of hydraulic device that use
the engine power to steer. The engine drive the power
steering oil pump to generate the hydraulic pressure, which
actuates the piston in steering gear, so that the worm shaft
can provide to the piston with a supplementary force, which
has relation with the pressure actuated on the piston.
Therefore, pressure increase is required if larger steering
force is needed, and the pressure variation is accomplished
through the control valve.
Intermediate position (forward straightly)
The liquid from the power steering oil pump is sent to
the control valve, which, if locates at the intermediate, will
allow the liquid to pass and enter into the drain outlet, finally
return the pump. At this time, it is difficult to increase the
pressure; meanwhile, due to the equal pressures at the both
sides of the power piston, it cannot move toward either side.
Steering time
When the steering drive shaft move toward either side,
the control valve will move together with it, in case one oil
passage is shut off, meanwhile open the other larger, the
liquid flow variation will increase the pressure, as result, the
unequal pressure at both sides of piston will make the piston
move toward the side of smaller pressure, therefore, the
liquid is pressed in the pump through the control valve.
pump control valve
drain outlet
power cylinde
power piston
segmental gear shaft worm shaftsteering gear
Pump

SR-13Steering System
Power Steering (On-Vehicle Inspection)
tensioning wheelpower steering oil
pump
crankshaftOn-vehicle inspection
Inspection on tension of driver conveyor
Measure the tension of drive conveyor.
Drive conveyor tension: under the condition of 98 N.
New conveyor: (5-7)mm
Old conveyor:
(7-9)mm
Remark:
ìnew conveyorî means the conveyor that is used on the
machine less than five minutes;
ìold conveyorî means the conveyor that is used on machine
more than five minutes
Check for height of liquid level
1. Keep the body in horizontal status
2. Increase the liquid temperature
When the engine runs idly by 1000 r/m or less, rotate the
steering wheel several times from the locking position to the
reverse locking position to increase the liquid temperature.
3. Check to see whether there is foam or emulsification;
Remark: the foam or emulsification shows there is air in the
system or the liquid level is over-low.
4. Check the liquid level height in oil cup;
Check the liquid level height and, if needed, add the oil.

SR-18Steering System
Power Steering Gear
Power steering gear
Disassembly and mount of power steering gear
Dr SF SJ
LP oil pipe
HP oil pipe
steering drive shaft
power steering gear
swing arm
N
m
specified torque
pi=ph=pv
96
10
96
10(Dr)
145
10(SF)
78
10(SJ)
swing arm
245
25
LP oil pipe
HP oil pipe
steering drive shaft(SJ)
power steering gear
steering drag rod
91
10(Dr SF)
steering drive shaft(Dr SF)
245
25

SR-19
assembly mark
SST
Points on disassembly and mount
1. Tear down the HP oil pipe and LP oil pipe from the
steering gear;
Tear down the HP oil pipe and LP oil pipe from the steering
gear.
2. Tear down the steering power shaft
(a) Make assembly marks on the steering drive shaft and the
worm shaft.
(b) Tear down the connecting bolts of drive shaft
(c) Dismantle the steering drive shaft from the worm shaft.
3. Tear down and connect the swing arm:
(a) Tear down the swing arm fixing bolts;
(b) Tear down the swing arm from the steering gear with SST.
4. Tear down the fixing bolts of steering gear;
Tear down the fixing bolts from the steering gear and then the
steering gear can be disassembled. Steering System
Power Steering (Power Steering Gear)

A-1
Specifications of Maintenance
and Up-keeping
page
Clutch .......................................................................... A-2
Gear box ..................................................................... A-2
Transfer box ................................................................ A-3
Drive shaft ................................................................... A-4
Suspension system and automobile axle .................... A-4
Braking system ............................................................ A-5
Steering system .......................................................... A-6
A

A-4
Drive Shaft
Torsion moment
Fastening location Applicable vehicle model N*m
Connecting bolt
Fixing bolt of central supporter74
5
40
5 Dr SF SL SK SY SJ
Dr SL SK SY SJ
Inflation pressure of tire
Ground clearance of chassis
Steering angle of inner wheel
Kingpin inner inclination
Outer inclination of front wheel
Mechanical steering
Power steering
Kingpin rear inclination (inclination)
Mechanical steering
Power steering
Toe-in
Error in length between left and right
drag rod
Side slip valueFront:220
0kPa
Back:240
0kPa
Front:250
0kPa
Back:250
0kPa
295mm
255
mm
58.5mm(difference in height between
shaft center of lower arm and wheel
center)
310
mm
295
mm
36
40


32

32
34

9
30'
5'
14
52'
0
30'
0'
0
10'
0'
0
20'
0'
0
20'
5'
1
50'
-20'
2
5'
5'
2
0'
0'
0-2mm
=2mm
=5m/km

.5m/km
Suspension System and Automobile Axle
Specification
Item Applicable vehicle model Specification
Dr SL SK SY SJ
SF
Dr
SL SK
SF
SY
SJ
Dr SL SK SY
SF
SJ
Dr SL SK SY
SJ
Dr SL SK SY
Dr
SL SK SY
SJ
Dr SL SK SY
Dr SL SK SY
SJ
Dr SL SK SF SY SJ
Dr SL SK SF SY SJ
Dr SF
SL SK SY SJ
HPM

Specification of Maintenance and Up-Keeping
Drive shaft, Suspension System and Automobile Axle

B-3
Application position
Front axle
Rear axle
2WD 4WD
3916011

3916012
3916013
3916014
3916015
3916016
3916017
3916018
3916019
3916020 Press fitting tool of up-
per arm liner
Disassembling and as-
sembling tools of wheel
brake cylinder of front
brake caliper
Disassembling tool of
front drive shaft bearing
Pneumatic caliper of
outer sleeve of front drive
shaft
Press fitting casing of
front drive shaft bearing
Disassembling tool of
main teeth oil seal
Press fitting tool of main
teeth oil seal
Disassembling tool of
long semi-axis
Electric cutch tester
Disassembling tool of oil
seal and needle bearingOil seal of long semi-
axis of front axle
Inner oil seal of rear axle
shaft
Needle bearing of long
semi-axis
SST Special tool
Diagram Tool Name tool number Remark
SST Special Tool
Special Service Tool