Page 139 of 484
SA-28Suspension System and Automobile Axle(SF/2WD)Front Suspension
locking ring
cushion block nut
locking ringcushion blockupper arm
transverse stabilizer rod
bolt
transverse stabilizer rod gasket
rubber
snubber washer
restrictor tube
Brake
caliper
steering knuckle
brake oil pipe bracket
steering
knuckle arm
brake shell
dust cover
oil seal -front hub
front wheel
bearing(inner)
front wheel hub and
front brake discstop washer
lock plate
front hub bearing
(outer)
steering knuckle nut
liner
lower
ball stud
Parts that cannot be reused after being used:specified torque
Nm
135-155
23292529 70-90
132-152
20-26
180 127-147132152123
shock absorber
steering knuckle
outer flange cap
Front wheel hub and steering knuckle
Element figures
SF2WD
stabilizer rod gasket
stabilizer rod gasket
rubber snubber
washer
stabilizer rod gasket
stabilizer rod gasket
Page 140 of 484

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)
Page 141 of 484

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)Nm
(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)
Page 142 of 484

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)Nm
(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 torque25Nm
(d) Mount on the lock plate and another steering knuckle nut.
Tighten torque60Nm
(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)
Page 146 of 484

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)Nm
3. Mount the stabilizer rod on the lower arm.
Fastening torque(20-26)Nm
4. Mount the vibration damper on the lower arm.
Fastening torque(127-147)Nm
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 torque180Nm
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)Nm
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)
Page 155 of 484

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 usedspecified torque
Nm
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
Page 157 of 484

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)Nm
(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)
Page 158 of 484

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 45 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 torque25Nm
(d) Mount on the lock plate and mount on another steering
knuckle nut.
Fastening torque60Nm 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)Nm
(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)