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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)
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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 143 of 484
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)Nm
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 torque123Nm
(b) Connect the Bundy tube.
Fastening torque(20-22)Nm
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)
Page 145 of 484
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)Nm
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)Nm
Suspension System and Automobile Axle (SF/2WD)Front Wheel Hub and Steering Knuckle (Steering Knuckle)
Page 154 of 484
SA-43
Mount of Upper Arm
1. Screw up the axle nut of upper arm according to the
specified torque;
Fastening torque(225)Nm
2. Mount on the upper arm;
Screw up the three bolts of the upper swing arm shaft according
to the specified torque;
Fastening torque(1785)Nm
3. Connect the upper arm ball stud with the upper arm;
Use four sets of bolt and nut to connect the upper arm ball stud
and the upper arm.
Fastening torque(27)Nm
4. Mount the torsion rod spring;
5. Check the Alignment of Front Wheel:
(See Page SA-6)
Suspension System and Automobile Axle (SF/2WD)Front Suspension \(Lower arm, Guide Lever and Transverse Stabilizer Rod)
Guide Lever
(See page SA-26)
Transverse Stabilizer rod
(See page SA-27)
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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)
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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)Nm
(c) Mount on the free wheel hub cap.
Fastening torque(6-12)Nm
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 torque123Nm
(b) Connect the Bundy tube.
Fastening torque20-22Nm
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.
Page 163 of 484
SA-52
8. Mount the inner oil seal óon the steering knuckle.
Check the oil seal visually, if any deformation or glue lack is
found, change the oil seal
Mount of Steering Knuckle
1. Mount the lower ball stud on the steering knuckle;
Connect the lower ball stud and the steering knuckle with
bolts, and screw up the bolts according to the specified torque.
Fastening torque(70-90)Nm
2. Mount on the steering knuckle
(a) Coat the lubricant HP-R on the drive shaft.
(b) Press down the lower arm to mount on the steering
knuckle.
(c) Mount on the groove nut of lower ball stud and screw up
the nut according to the specified torque, and then mount
on the split pin.
Fastening torque(132-152)Nm
(d) Mount on the groove nut of upper ball stud and screw up
the nut according to the specified torque, and then mount
on the split pin.
Fastening torque(132-152)Nm
Suspension System and Automobile Axle (SF/4WD)Front Wheel Hub and Steering Knuckle (Steering Knuckle)