Great Wall service chassis and body Manual - part 27

SA-4

Suspension System and Automobile Axle

 Alignment of Front Wheel (Dr SL SK SY SJ)

5.

Adjustment for inner tilt angle of kingpin, outer tilt angle

of front wheel and back tilt angle of kingpin

Item

Inner tilt
angle of
kingpin

Outer tilt
angle of
front
wheel

Applicable vehicle type

Dr SL SK SY

SJ

M e c h a n i c
steering

Dr SL SK SY

Power
steering

Dr

SL SK SY

SJ

Back tilt
angle of
kingpin

M e c h a n i c
steering

Dr SL SK SY

Power steer-
ing

Dr SL SK SY

SJ

9

30
 45

14

52

0

30
 20

0

10
 10

0

20
 10

0

30
 15

2

45
 15

3

 15

Location parameter

4.

Adjust the wheel angle

Take apart the limit bolts of the steering knuckle to check the

steering angle A of inner wheel.

Inner wheel steering angle

Dr SL SK SY

 ( 36
40
)

SJ

 ( 32
34
)

Remark: The wheel should not contact the body or brake hose

when the steering wheel reaches the limit position.

In case the steering angle of inner wheel doesnít conform to the

standard value, adjust the wheel angle through adjusting the

limit bolts of the steering knuckle.

Fastening torque

(90 
 0)N
m(SJ)

If the wheel angle fails to be adjusted within the standard value,

change the weary or damaged parts of steering system.

If the tilt angle fails to fall within the specified values, make an

adjustment through adding or reducing the gaskets on the

location of upper arm.

Gasket thickness: 3.0, 2.0 and 1.0mm

Once the gasket thickness increases by 1mm, the outer tilt

angle of wheel will change by 7', while the back tilt angle of

kingpin will change 20'.

After the wheel outer tilt angle and the back tilt angle of kingpin

are adjusted, if the inner tilt angle of kingpin still fails to the

specified value, check the steering knuckle or front wheel to

see whether they are bending or loose.

1

50

-20

adjusting bolt

outer tilt

angle of

front wheel

inner tilt angle of kingpin

back tilt angle of

kingpin

front

A

B

A

B

HPM

SA-5

7.

Check the sliding measuring situation.

Check the sliding situation with the sliding measuring tester.

Sliding measuring value: 

.5m/km

push forward the vehicle;

forward

A=B

B

A

6.

Wheel toe-in adjustment

(a)

Verify that each wheel has been located forward in a line.

(b)

Mark the tire center at the bearing height on the tread of

left and right tire, and measure the distance between the

marks on left and right treads.

(c)

Push forward the vehicle until the mark on the back tread

of tire moves to the front.

Remark: the toe-in measurement should be conducted from the

same spot at the same height.

(d)

Measure the distance between the two marks on the front

of two treads.

Toe-in value: (0-2)mm

(e)

Loosen the clamping bolts of connecting pipe.

(f)

Adjust the toe-in angle through the approach according to

which rotate the left and right drag rod tube by a same

angle.

Remark: check the lengths of the two drag rods to see whether

the two rods are same in length.

Length error of the left and right drag rod should not

be larger than 2.0mm.

(g)

Tighten the clamping bolts.

Fastening torque

(20 
) N
m

(h)

Locate the split pin well.

Suspension System and Automobile Axle

 Alignment of Front Wheel (Dr SL SK SY SJ)

SA-6

Suspension System and Automobile Axle

 Alignment of Front Wheel 
 Alignment of Front Wheel (SF)

Alignment of Front Wheel

(SF)

1.

The following items should be checked to remove the

troubles.

(a)

Check the tire abrasion and the air inflation to see it is

suitable or not.

Tire inflation pressure: (250

 0)kPa

(b)

Check the front wheel bearing to see whether it is loose.

(c)

Check the front suspension to see whether it is loose.

(d)

Check the steering driving device to see whether it is

loose, and

(e)

Check the front vibration through elastic force test to see

whether it is normal in performance.

2.

Height adjustment of vehicle

Adjust the vehicle height to the standard value so as to make

the Alignment of Front Wheel inspection.

A-B-58 5mm

A: The height of steering knuckle shaft center.

B: The center height of the adjusting cam bolt at front end

The standard value for the unloaded height is: the

difference of the center height of drive shaft climax and

the front adjusting cam bolt is 58.5mm.

3.

Mount on the four wheel locating device

This approach should be conducted according to the detailed

instruction of the equipment manufacturer.

4.

Adjust the outer tilt angle of front wheel and the back tilt

angle of kingpin

The outer tilt angle of front wheel: 0

5' 
 0'

The back tilt angle of kingpin: 2

0' 
 0'

Outer inclination of front wheel:

B

A

the outer tilt angle of
front wheel

the back tilt angle
of kingpin

front

SA-7

Suspension System and Automobile Axle

 Alignment of Front Wheel 
 Alignment of Front Wheel (SF)

In case the outer tilt angle of front wheel or the back tilt angle

of kingpin fails to conform to the specified value, adjust the

cam forward or backward may amend them.

5.

Wheel angel adjustment

Take apart the limit bolt cap of the steering knuckle to check

the inner wheel steering angle A.

The inner wheel steering angle: =32

Notice:The wheel should not touch the body brake hose

when the steering wheel is rotated to the bottom.

In case the max steering angle is not in the conformity with the

standard value, adjust the wheel angle through the limit bolts

of steering knuckle.

In case the wheel angle still fails to fall within the standard

range, make a inspection and change the weary and damaged

steering mechanism parts.

6.

Wheel toe-in adjustment

Adjust the wheel toe-in according to the following approach

(a)

Raise or reduce the vehicle until the suspension stands in

balance.

(b)

Push the vehicle on the ground 5 meters forward under

the condition that the front wheels locate forward in a

line.

front cam adjustment

rear cam adjustment

reduce

increase

increase

reduce

A

B

A

B

front