GREAT WALL SO COOL 2006 Service Manual

SA-30
5. Front hub bearing outer race inspection and change
(a) Check each bearing
Wash the inner and outer races of each bearing, and check
them whether they are wearied or damaged.
(b) Tear down the outer race of each bearing.
Tap out the bearing outer race with copper bar and
hammer.
Notice: bind the dismantled inner and outer races of
bearing together to prevent from mixing.
6. Front brake disc inspection and change
(a) Check the wear situation of front brake disc.
(b) Tear down the bolts that connect the front wheel hub and
front brake disc.
(c) Connect the front wheel hub and front brake disc and
screw up the bolts with moment spanner to the specified
torque diagonally
Fastening torque
(70-80)N
m
(d) Conduct the dynamic balance test on the dynamic balancer,
the amplitude value displayed should not be above 13.5g
under the condition that the measuring rotating velocity
is 796 r/m and the locking rotating velocity 786 r/m,
otherwise, tap in the counter balanced clip, which is 4g
each, at the corresponding location, the number of the
clip should not be more than 4.
(e) Tap in the new bearing outer race with the special service
tool.
Notice: the inner and outer races of bearing should be
changed in set.
Assembly of Front Wheel Hub
1.Mount on the inner race and roller assembly of front hub
bearing (inner) as well as the front hub oil seal.
Coat the lithium base grease of 4 to 5 mm on the inside surface of
the bearing outer race and front wheel hub, and plaster the
lubricant in the front hub bearing (inner) and the roller assembly.
Coat a little lubricant on the lips of oil seal of front wheel hub, and
then tap the oil seal of front hub in place with special service tool.
Notice: do not coat the lubricant on the front brake disc face.
Suspension System and Automobile Axle (SF/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-31
2. Mount on the inner race and roller assembly of front hub
bearing (outer).
After coating 4 to 5 mm lithium base grease on the outer race
of bearing, put in the inner race and roller assembly of front hub
bearing (outer), and then plaster the lubricant.
3. Mount the front wheel hub and front brake disc on the
steering knuckle.
Coat a little lubricant on the steering knuckle where the oil seal
locates, and mount the front wheel hub and front brake disc on
the steering knuckle, then mount on the stop washer.
4. Adjust the preload
(a) Mount on the steering knuckle nut and screw up them
according to the specified torque.
Tighten torque: (100-120)N
m
(b) Run the front wheel hub about 1/4-1/3 round, and seat the
bearing.
(c) Loosen the steering knuckle nut to ensure the front brake
disc can run freely. Screw up the steering knuckle nut
again according to the specified torque.
Fastening torque
25N
m
(d) Mount on the lock plate and another steering knuckle nut.
Tighten torque
60N
m
(e) Hold the front wheel hub bolts with a spring-tension
meter and drag the meter slowly in the direction of the
tangent line of this spot.
Suitable tension range: (29-54)N
The nuts should be retightened until falls within the suitable
range if the tension force is overlarge or over small.
(f) Check the bearing and ensure that the clearance, which is
not larger than 0.05 mm, is not excessive.
(g) Measure the bouncing value of the front brake disc face.
Bouncing value should not be above o.11mm.
Suspension System and Automobile Axle (SF/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-32
(h) Bend one tooth of the lock plate inside and other teeth
outside to lock the steering knuckle nut.
5. Mount on the liner and the steering knuckle outer flange
cap.
Fastening torque
(23-29)N
m
6. Mount the brake caliper
(a) Mount the brake caliper on the steering knuckle and
screw up the bolts according to the specified torque.
Fastening torque
123N
m
(b) Connect the Bundy tube.
Fastening torque
(20-22)N
m
7. Check the height of the brake liquid level and add the
brake liquid as requirement, exhaust the gas in the
braking system.
Steering knuckle
Dismantle of Steering Knuckle
1. Tear down the brake caliper, front wheel and the front
brake disc.
2. Tear down the dust cover, and the brake shell.
3. Tear down the steering knuckle arm from the steering
knuckle.
Suspension System and Automobile Axle (SF/2WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)

SA-33
4. Tear down the vibration damper from the lower arm.
5. Tear down the transverse stabilizer rod from the lower
arm.
6. Tear down the steering knuckle;
(a) Tear down the split pin and groove nut of upper ball stud.
(b) Take apart the steering knuckle from the upper ball stud
with special service tool.
(c) Tear down the split pin and groove of the lower ball stud.
(d) Take apart the steering knuckle from the lower ball stud
with special service tool.
(e) Press down the lower arm to tear down the steering
knuckle.
Suspension System and Automobile Vehicle (SF/2WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)

SA-34
7. Tear down the lower ball stud assembly from the steering
knuckle.
Inspection on and Change of Steering
Knuckle
1. Check the steering knuckle.
Check the steering knuckle with the dye penetration agent to
see whether there is crack or not.
If crack is found, the steering knuckle is required to be changed.
Mount of Steering Knuckle
1. Mount the lower ball stud on the steering knuckle.
Connect the lower ball stud and steering knuckle with bolts,
which are tightened according to the specified torque.
Fastening torque
(70-90)N
m
2. Mount on the steering knuckle
(a) Press down the lower arm to mount on the steering
knuckle.
(b) Mount on the lower ball stud, groove nut and screw up the
nuts according to the specified torque and then mount on
the split pin.
Fastening torque
(132-152)N
m
Suspension System and Automobile Axle (SF/2WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)

SA-35
(c) Mount on the upper ball stud and the groove nut that are
screwed up according to the specified torque, and then
split pin.
Fastening torque
(132-152)N
m
3. Mount the stabilizer rod on the lower arm.
Fastening torque
(20-26)N
m
4. Mount the vibration damper on the lower arm.
Fastening torque
(127-147)N
m
5. Mount the steering knuckle arm and the brake oil pipe
bracket on the steering knuckle.
Coat the sealing agent 1271 on the bolt thread.
Fastening torque
180N
m
6. Mount the dust cover and brake shell, and align the
locating hole of the dust cover with the groove of the
steering knuckle to ensure that the dust cover is concen-
tric with the steering knuckle.
Fastening torque
(25-29)N
m
7. Mount the front wheel hub and the front brake disc as well
as the brake caliper.
8. Check the height of brake liquid level and add the brake
liquid as requirement, then exhaust the gas in the brak-
ing system.
Suspension System and Automobile Axle (SF/2WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)

SA-36
Front Suspension
Elemtents figures
Suspension System and Automobile Axle(SF/2WD)
Front Suspension
upper swing arm
shaft
upper arm
transverse
stabilizer rod
vibration
damper
lower arm shaft bush
pinch-off gasket(small)
lower arm
: specified torque

Parts that cannot be reused after being usedN
M
178
15
225
589
7
27
2
142
10
137
10
23
3
142
10
142
10
23
3




SF
upper arm shaft
bush(short)
upper arm shaft bush and tube(long)
torsion bar yoke
upper arm shaft bush
pinch-off gasket(large)
upper arm shaft bush pinch-off
gasket(small)
upper ball stud
eccentric
gasket
lower arm shaft bush
and tubelower ball
stud


lower arm shaft bush
pinch-off gasket(large)

SA-37
Ball Stud
Inspection on Ball Stud
1. Check the lower ball stud to see whether it is excessively
loose:
(a) Raise the vehicle with a jack and then support it with the
bracket.
(b) Press down the brake pedal after verifying that the front
wheel is straightly forward.
(c) Move the arm vertically to check whether the clearance
of lower ball stud is over large.
(Max vertical clearance): 0.5 mm
2. Check whether the upper ball stud is loose excessively;
Move the wheel vertically to check whether the clearance of
the ball stud is over large.
(Max vertical clearance): 0.5 mm
3. Check the rotating performance of the ball stud:
(a) Tear down the ball stud;
(b) Shake the ball stud column several times before mount-
ing on the nut, as shown in the drawing.
(c) Rotate the nut continuously with the torsion meter at the
speed of one round each 2 to 4 seconds, read the meter
reading at the fifth round.
Fastening torque(running)

lower ball stud
(0.1-4)N
m
Upper ball stud: (0.1-4)N
m
Disassembly of Ball Stud
1. Tear down the steering knuckle, steering knuckle arm
and the lower ball stud assembly.
2. Tear down the ball stud from the steering knuckle;
3. Tear down the ball stud from the upper ball stud. Suspension System and Automobile Axle (SF/2WD)
Front Suspension (Ball Stud)

SA-38
Mount of Ball Stud
1. Mount the upper ball stud on the upper arm;
Fastening torque
(27
)N
m
2. Mount the lower ball stud on the steering knuckle;
Fastening torque
(80
0)N
m
3. Mount on the steering knuckle and hub brake disc
assembly
(See Page SA-34)
Suspension System and Automobile Axle (SF/2WD)
Front Suspension (Ball Stud
Torsion Rod Spring)
Torsion Rod Spring
(see Page SA-19)

SA-39
Lower arm and Vibration Damper
Disassembly of Lower Arm
1. Tear down the transverse stabilizer rod;
2. Tear down the vibration damper;
3. Disconnect the lower arm ball stud seat and the lower
ball stud;
Remove the cotter pin and the groove nut.
4. Tear down the lower arm
(a) Make a mark on the mounting position of the eccentric
gasket.
(b) Tear down the lower arm.
Suspension System and Automobile Axle (SF/2WD)
Front Suspension (Lower Arm and Vibration Damper)