lock GREAT WALL SO COOL 2006 Workshop Manual

SA-29
Front Wheel Hub
Disassembly of Front Wheel Hub
1. Tear down the brake caliper.
(a) Tear down the brake Bundy tube from the brake caliper,
and block the Bundy tube line with a cork.
(b) Tear down the brake caliper from the steering knuckle.
2. Tear down the steering knuckle outer flange cap.
3. Tear down the front wheel hub and brake disc.
(a) Open the lock plate with a screwdriver.
(b) Tear down the steering knuckle nut with the SST tools to
take out the. lock plate
(c) Tear down the other steering knuckle nut with SST tools
to take out the stop washer and the steering knuckle outer
bearing.
(d) Tear down the front wheel hub and the brake disc
assembly.
4. Tear down the front hub, oil seal, front hub bearing
(inner) inner race and roller assembly.
(a) Pry out the oil seal.
Notice: the deformed oil seal should not be reused.
(b) Take out the front hub bearing (inner) inner race and
roller assembly.
Suspension System and Automobile Axle (SF/2WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

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-44
Front Wheel Hub and Steering Knuckle
Element Figure
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle
lock ring
cushion block nut
lock ring
cushion
block
shock
absorberupper arm
transverse stabilizer rod
bolt
transverse stabilizer
rod gasket

rubber snubber
washer
stabilizer rod limit tubebrake
caliper rubber
snubber
washer
constant speed
drive shaft needle
bearingsteering knuckle
steering knuckle
small sleeve
retainer ring
washer-spline of
steering knuckle
shaft thrust plate-
steering knuckle

inner oil
seal- drive shaft
brake oil pipe bracket
steering
knuckle arm
brake shell
dust cover

oil seal -
front hub
front hub bearing
(inner)
front wheel hub and
front brake discstop washer
lock plate
front hub bearing
(out)
steering knuckle
big nut
free wheel hub
noumenongasket
free wheel
hub cap
gasket


liner
lower ball stud








Parts that cannot be reused after being used
specified torque
N
m
135-155
6-12 25-29


25-29 70-90
132-152
20-26
180 127-147132-152123
SF 4WD
transverse stabilizer rod gasket

transverse stabilizer rod gasket

transverse stabilizer
rod gasket

transverse stabilizer
rod gasket

SA-45
2. Tear down the free hub.
3. Tear down the retainer ring and the axle spine of washer-
steering knuckle:
Tear down the retainer ring with the pliers for retainer ring, and
take down the axle spline of washer-steering knuckle by hand.
4. Tear down the front wheel hub and front brake disc:
(a) Prize up the lock plate with screwdriver.
(b) Tear down the steering knuckle nut with special service
tool to take out the lock plate.
(c) Tear down another steering knuckle nut with special
service tool to take out the stop washer.
(d) Tear down the front wheel hub and the front brake disc.
Front Wheel Hub
Disassembly of Front Wheel Hub
1. Tear down the brake caliper:
(a) Tear down the Bundy tube from the brake caliper and
block the pipeline of Bundy tube with cork.
(b) Tear down the brake caliper from the steering knuckle.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-46
5. Tear down the front hub, the oil seal and the inner race
of front hub bearing (inner)
(a) Prize out the oil seal.
(b) Take out the inner race of front hub bearing (inner).
6. Inspection on and change of the outer race of front hub
bearing
(a) Check each bearing:
Wash the inner and outer races of each bearing to check
their wear or damage situation.
(b) Tear down the outer race of each bearing:
Tap out the outer bearing race with copper bar and hammer.
Notice: bind the inner and outer races of the same
bearing together to prevent from mixing.
7. Inspection and change for front brake disc
(a) Check the wear situation of the front brake disc.
(b) 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
bolts, which are tightened diagonally with moment span-
ner according to the specified torque.
Fastening torque
(70-80)N
m
(d) Make the dynamic balance test on the dynamic balancer,
and the amplitude value displayed should not be smaller
than 13.5g under the condition that the measuring rotat-
ing velocity is 796 r/m and the locking rotating velocity
of 786 r/m, otherwise, tap the counter balanced clip,
which is 4g each, in the corresponding position, the clip
number should not be more than 4.
(e) Tap in the new bearing outer race carefully with the
special service tool.
Notice: the inner and outer races of the same bearing
should be changed in one time.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-47
Assembly of Front Wheel Hub
1. Mount on the inner race and roller assembly of front hub
bearing as well as the oil seal of front hub.
Coat the lithium base grease of (4-5)mm on the inside surfaces
of the bearing outer race and the front wheel hub, put in the
inner race and roller assembly of front hub bearing (inner),
then plaster the lubricant. Plaster a little lubricant on the lips of
front wheel hub oil seal, and finally tap the front hub in place
with special service tool.
Notice: Do not plaster the lubricant on the face of front
brake disc.
2. Mount the inner race of front hub bearing (outer) and
roller assembly
Coat 4
5 mm of lithium base grease on the outer race of
bearing, and then put the inner race of front hub bearing (outer)
and roller assembly in it, finally plaster with lubricant.
(c) Loosen the steering knuckle nut to ensure the front brake
disc can run freely. Screw up the steering knuckle nut
again to the specified torque.
Fastening torque
25N
m
(d) Mount on the lock plate and mount on another steering
knuckle nut.
Fastening torque
60N
m 3. Mount the front wheel hub on the steering knuckle
Coat a little lubricant on the oil seal of steering knuckle, and
then mount the front wheel hub and front brake disc on the
steering knuckle, finally mount on the stop washer.
4. Adjust preload:
(a) Mount on the steering knuckle nut and screw it up
according to the specified torque.
Fastening torque
(100-120)N
m
(b) Run the front wheel hub by 1/4-1/3 round so as to seat the
bearings.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)

SA-48
(e) Hold the bolt of front wheel hub with the spring-tension meter
and drag slowly in the direction of the spot tangent line.
Suitable tension range
(29-54)N
The nut should be screwed up again within the suitable range if the
tension value is overlarge or over small.
(f) Check the bearing to ensure it cannot leap excessively (the
axial clearance should not be more than 0.05mm).
(g) Measure the bouncing value of the front brake disc, which
should not be more than 0.11mm, and
5. Mount the liner and the free hub:
(a) Tear down the free wheel hub cap firstly.
(b) Mount the liner and the free hub on the front wheel hub.
Fastening torque
(25-29)N
m
(c) Mount on the free wheel hub cap.
Fastening torque
(6-12)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
20-22N
m
7. Check the height of brake liquid level and, if required, add
the brake liquid, exhaust the gas from the brake system.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)
(h) Bend one tooth of lock plate inside and other teeth outside
so as to lock the steering knuckle nut.

SA-58
(b) Lock the flange with special service tool to tear down the
main-tooth nut.
7. Tear down the inner race of conical roller bearing;
If the bearing is damaged, change a new bearing.
8. Mount the new bearing.
6. Tear down the driving bevel gear oil seal and oil-guard
tray:
(a) Tear down the driving bevel gear oil seal with special
service tool.
(b) Tear down the oil-guard tray. (c) Tap down the flange and dust cover with copper bar.
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Change of Driving Bevel Gear Oil Seal of Front Speed Reducer)