GREAT WALL SO COOL 2006 Service Manual

SA-10
Front wheel hub and steering knuckle
Element Drawing
front wheel hub snap ring
25-28

front wheel hub oil seal
brake caliper
plain washer
bearing 32007
front wheel hub and
front brake discbearing 30205
locking nut
front wheel hub cap
stop washer
dust cover


steering knuckle arm
steering knuckle 85-105
98-118

100-120
132-152





Used component which can not be used any more
N
m: specific torque
Dr
front brake shell
Suspension System and Automobile Axle (Dr/2WD)
Front Wheel Hub and Steering Knuckle

SA-11
4. Take apart the front wheel hub oil seal, the inner race and
roller assembly of bearing 32007.
(a) Pry out the oil seal.
(b) Take out the bearing inner race and roller assembly.
Front Wheel Hub
Disassembly of Front Wheel Hub
1. Take apart the brake caliper.
2. Take apart the front wheel hub cap.
3. Take apart the front wheel hub and front brake disc:
(a) Take apart the split pin to take down the lock cover.
(b) Screw off the lock nuts of the hub bearing with spanner
and take down the stop washer.
(c) Take apart the front wheel hub and front brake disc with
the bearing 30205 together.
Disassembly the wheel hub and suspend it with tightwire.
Remark: Donít dismantle the brake hose and brake metal pipe
Takeapart the front wheel hub cap from the gap between the
front wheel hub cap and the front wheel hub.
5. Bearing outer race inspection and tear-down
(a) Inspect the bearings
Clean each bearing and check them to see whether there is wear
or damage.
(b) Take apart the bearing outer race
Tap out the bearing outer race with copper bar and hammer.
Notice: bind the disassembled inner and outer bearing
race together to avoid of mixing.
Suspension System and Automobile Axle (Dr/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-12
6. Inspection and replacement for front brake disc
(a) Check the wear situation of the front brake disc. (see Dr
the brake caliper).
(b) Use the spanner to tear down the bolts that connect the
front wheel hub and the front brake disc.
(c) Connect the front wheel hub and the front brake disc with
bolt and spring washer, and screw up the bolts with a
moment spanner to the specified torque in the diagonal
order.
Fastening torque
(60-79)N
m
(d) Conduct the equilibrium test on the dynamic balancer,
the amplitude value displayed should not be larger than
13.5g under the condition that the measuring rotating
velocity is 796 r/m and the locking rotating velocity is
786 r/m, when the amplitude value is larger than 13.5 g,
encase the counter balanced clip, which is 4 g each, at the
corresponding phase, the number of the clip encased
should not be more than four.
7. Bearing outer race change
Press in the new bearing outer space with the special service
tools.
Notice: the bearing inner and outer races should be changed at
one time.
Assembly of Front Wheel Hub
1. Mount on the Bearing 32007 inner race and roller assem-
bly as well as the front wheel hub oil seal.
Coat the lithium base grease of (4-5)mm on the inner surfaces
of bearing outer race and the front wheel hub, encase the
Bearing 32007 inner race and roller assembly, plaster the
lubricant again. Coat a little lubricant on the lips of front wheel
hub oil seal and then tap it in place.
Notice: do not make the lubricant contact the front brake
disc face.
2. Mount on the Bearing 32007 inner race.
After coating the bearing outer race with the lithium base
grease of 4-5 mm, encase the inner race and roller assembly of
Bearing 30205, and plaster the lubricant again.
Suspension System and Automobile Axle (Dr/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-13
3. Mount the front wheel hub on the steering knuckle.
Coat a little lubricant at the position of the steering knuckle
where the oil seal locates, mount the front wheel hub and front
brake disc on the steering knuckle, and then mount on the stop
washer.
4. Preload adjustment
(a) Mount on the lock nut and screw up according to the
specified torque.
Fastening torque
(130-150)N
m
(b) Run the front wheel hub about 1/4-1/3 of circle, and
combine it with the bearing seat.
(c) Loosen the locking nut to ensure the front brake disc run
freely, and then screw up the nuts to the specified torque.
Fastening torque
(25-35)N
m
(d) Hook the front wheel hub with the spring-tension meter
and pull the spring-tension meter slowly in the tangential
direction of this spot.
The reasonable range of tension force: (16-33)N.
Remark: if the tension force is larger or smaller of the reason-
able range, screw up the nuts again until the tension force falls
within the reasonable range.
(e) Measure the bouncing value of the front brake disc,
which should not be larger than 0.11mm.
5. Mount on the lock cover and the split pin
Suspension System and Automobile Axle (Dr/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-14
6. Tap in the front wheel hub with a rubber hammer
7. Mount the brake caliper on the steering knuckle.
Fastening torque
(85-105)N
m
Steering Knuckle
Disassembly of Steering Knuckle
1. Take apart the brake caliper, the front wheel hub and the
front brake disc.
2. Take apart the front brake shell:
(a) Tear down the two bolts (M8X16).
(b) Tear down the two split pins, grooved nuts, washer and
bolts that connect the steering knuckle arm.
3. Tear down the steering knuckle
(a) Support the lower arm with jack;
(b) Tear down the two split pins and the grooved nuts
(c) Disconnect the steering knuckle from the upper and
lower ball studs and take apart it.
Inspection on Steering Knuckle
Check the steering knuckle
Check the steering knuckle with the dye penetration agent to
see whether the steering knuckle has a crack or not.
If the crack is found, the steering knuckle is required to be
changed.
Suspension System and Automobile Axle (Dr/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-15
Mount the steering knuckle
1. Mount the steering knuckle
(a) Support the lower arm of the steering knuckle with a jack.
(b) Mount the steering knuckle on the lower ball stud and
screw on the nuts.
(c) Press the upper arm to mount on the steering knuckle and
screw on the nuts.
(d) Screw up the nuts of the upper ball stud according to the
specified torque.
Fastening torque
(100-120)N
m
(e) Screw up the nuts of the lower ball stud according to the
specified torque.
Fastening torque
(98-118)N
m
(f) Mount on the split pin between the upper and lower ball
studs.
2. Mount the steering knuckle arm and the front brake shell;
(a) Screw up the two bolts of M8X16.
Fastening torque
(25-28)N
m
(b) Screw up the two bolts and groove nuts (M12X67) to the
specified torque.
Fastening torque
(98-118)N
m
(c) Mount on the two split pins.
In case the pin hole in the ball stud are not in alignment with
the groove nut, adjust the fastening torque and the rotating
angle under the condition that satisfying the minimum torque,
so as to ensure the torque falls within the specified range, if
cannot, mount the split pin with the minimum torque beyond
the range
3. Mount the front wheel hub and the front brake disc.
4. Check the Alignment of Front Wheel.
(See SA-3)
Suspension System and Automobile Axle (Dr/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-16
Front suspension
Element figure
Suspension System and Automobile Axle (Dr/2WD)
Front Suspension







 !


torsion fork transverse
stabilizer rod
lower ball stud

Parts that cannot be reused after being used
N
m
90
110


110
1025
28
23
3
23
3torsion bar
226
25


lower arm80
10
80
10
142
10
150
10
96
10 65
70
Dr



pinch gasket of the upper arm shaft bush
rubber liner assembly for
the upper arm
guide lever








rocker arm
: specified torque shock
absorber

SA-17
Ball stud
Inspection on Ball Stud
1. Check the lower ball stud to see whether it is excessively
loose or not.
(a) Prop up the front of the vehicle with jack and then support
it with the bracket.
(b) Tread down the brake pedal after verifying that the front
wheel are in straight line.
(c) Move the arm vertically to check the lower ball stud to see
whether the clearance is overlarge.
Max vertical clearance : 0.5mm
2. Check the upper ball stud to see whether it is over-loose.
Move the wheel vertically to check whether the clearance of
the ball stud is over large.
3. Check the rotating performance of ball stud
(a) Take apart the ball stud.
(b) Shake the ball stud several times forward and backward
before mounting on the nut, as shown in the drawing.
(c) Rotate the nut continuously with a torsion meter, which
rotates the nut round per 2 to 4 seconds, and read the
reading of the torsion meter after 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.
(see the SA-14).
2. Take apart the lower ball stud from the lower arm; and
3. Take apart the upper ball stud from the upper arm. Suspension System and Automobile Axle (Dr/2WD)
Front Suspension (Ball Stud)

SA-18
Mount of Ball Stud
1. Mount the upper ball stud on the upper arm;
Fastening torque
26N
m
2. Mount the lower ball stud on the lower arm;
Fastening torque
65N
m
3. Mount on the steering knuckle
(see page SA-15)
Suspension System and Automobile Axle (Dr/2WD)
Front Suspension (Ball Stud)

SA-19
Torsion Rod Spring
Dismantle of Torsion Rod Spring
1. Use the jack to raise up the frame and support it with the
bracket.
2. Take apart the locking nuts to measure the length of the
projecting end of the bolts, as shown in the drawing.
Remark: This measuring value can be referred when adjusting
the chassis ground clearance.
3. Take apart the dust cover.
4. Loosen the regulating nut until there is no tension on the
torsion rod spring.
5. Take apart the torsion arm, torsion rod spring and the
torsion regulating arm.
(a) Tear down the mounting nuts of the torsion rod arm.
(b) Take apart the torsion regulating arm from the adjusting
bolt, the torsion regulating arm should be taken apart with
the torsion rod spring and the torsion rod arm together.
Dr SL SK SY
SJ
SFSuspension System and Automobile Axle (Dr/2WD)
Front Suspension (Torsion Rod Spring)