2006 GREAT WALL DEER oil change

TF-25
(b) Normal gear grinding trace.
Transfer Box
Washing, Checking, Up-Keeping and Exchanging (Checking)
Checking
1. Common Checking process
Check all parts by visual check to see whether there is damage
or serious or uneven wear (parts needed be substituted by new
parts such as O-ring, oil seal and etc. shall be excluded).
Abandon the damaged or weary parts that will affect on their
performance. The check items are as follows:

Burr: tips protruded from the material regionally

Rag: broken small blocks or particles

Crack: surface thread showing the material is partly or
completely separated.

Excessive abrasion
Refer to the serious or obvious abra-
sion beyond of application limit.

Reduction change
Material slip caused by the heavy
pressure on part of it.

adhesive bonding
Granules of the soft metal are dis-
persed and bonded on the hard metal surface.

Ditch trance: partial crack or trough that means the material
transfer instead of material loss.

Pitting corrosion
Damages to the metal surface caused by
pressure, which are displayed due to color change caused
by heat generated by metal friction.

Step wear
a weary step may be seen or felled between the
neighboring interface or between the non-touching face
due to the excessive wear.

Uneven wear: Partially, unevenly distributed wear, which
includes holes, bright spots, uneven polishing or other
visual drawbacks.
2. Gear or Chain sprocket tooth inspection
Check the gear and chain sprocket tooth according to the
following process:
(a) Normal gear shaving trace.
normal gear shaving trace
normal gear grinding trace

SA-1
Suspension System and Automobile Axle
Page
Troubleshooting .......................................................... SA-2
Alignment of Front Wheel ............................................ SA-3
(Dr/2WD)
Front Wheel Hub and Steering Knuckle ...................... SA-10
Front Wheel Hub ..................................................... SA-11
Steering Knuckle ..................................................... SA-14
Front Suspension ........................................................ SA-16
Ball Stud .................................................................. SA-17
Torsion bar .............................................................. SA-19
Lower Arm and Vibration Damper ........................... SA-21
Upper Arm ............................................................... SA-24
Guide Level ............................................................. SA-26
Lateral Stabilizer ..................................................... SA-27
(SF/2WD)
Front Wheel Hub and Steering Knuckle ...................... SA-28
Front Wheel Hub ..................................................... SA-29
Steering Knuckle ..................................................... SA-32
Front Suspension ......................................................... SA-36
Ball Stud ................................................................... SA-37
Torsion bar ............................................................... SA-38
Lower Arm and Vibration Damper ............................ SA-39
Upper Arm ................................................................ SA-42
Guide Level .............................................................. SA-43
Lateral Stabilizer ....................................................... SA-43
(SF/4WD)
Front Wheel Hub and Steering Knuckle ....................... SA-44
Front Wheel Hub ...................................................... SA-45
Steering Knuckle ..................................................... SA-49
Constant Speed Drive Shaft ........................................ SA-54
Front Speed Reducer .................................................. SA-57
Change of Oil Seal of Driving Bevel Gear Of
Front Speed Reducer ............................................. SA-57
Dismantle of Front Speed Reducer ......................... SA-61
Change of Axle Shaft Oil Seal ................................. SA-63
Disassembly and Assembly of Front Speed Reducer.... SA-65
Assembly of Front Speed Reducer ......................... SA-74
(Back)
Rear Axle Shaft ........................................................... SA-79
Rear Speed Reducer .................................................. SA-83
On-vehicle Change of Oil Seal of Main Teeth ......... SA-84
Dismantle of Rear Speed Reducer .......................... SA-85
Disassembly of Rear Speed Reducer ..................... SA-85
Assembly of Rear Speed Reducer .......................... SA-89
Mount of Rear Speed Reducer and
Differential Assembly .............................................. SA-94
Rear Differential .......................................................... SA-95
Rear Suspension ......................................................... SA-97
SA

SA-2
Troubleshooting
Suspension System and Automobile Axle
Troubleshooting
Change the tire or inflate to the proper pressure
Balance the wheels
Change vibration damper
Check Alignment of Front Wheel
Change or adjust the wheel bearing
Check ball joint) or liner
Tighten or change steering linkage
Adjust or repair the steering device
Discharge the oil and change with new one
Check the wandering clearance
Check the gears
Change the bearing
Change the bearing
Tighten or change the bearing Trouble Causes
Inspection items
Body wandering/body
draggingTire wear or improper air inflation
Incorrect alignment of front wheel
Over-tightened wheel bearing
Part looseness or damage of front/rear sus-
pension
Wear or looseness of steering rod system
Poor connection or damage of steering de-
viceInflate the tire to the proper pressure or change
the tire.
Check the situation of alignment of front wheel
Adjust the wheel bearing
Tighten or change the suspension element
Tighten or change the steering rod system
Adjust or repair the steering device
Body sink Overloaded vehicle
Wear of vibration damper
Poor spring performanceCheck the loading mass
Change vibration damper
Change spring
Left-right vibration/up-
down bouncingImproper air inflation
Bending or damaged lateral stabilizer
Vibration damper wearInflate the tire to suitable pressure
Change stabilizer
Change vibration damper
Front wheel vibration Tire wear or improper air inflation
Imbalance of wheels
Vibration damper wear)
Improper Alignment of Front Wheel
Wheel bearing wear or improper adjustment
Ball joint or liner wear
Steering linkage looseness or wear
Poor adjustment or damage of steering mecha-
nism
Abnormal tire wear Improper air inflation
Vibration damper wear
Poor Alignment of Front Wheel
Suspension system wearInflate the tire to the proper pressure
Change vibration damper
Check the Alignment of Front Wheel
Change suspension element
Speed reducer leakage Over-high oil level or improper oil quality
Oil seal wear or damage
Flange looseness or damageDischarge the oil for change
Change oil seal
Tighten or change the flange
Noise inside the
axleNoise inside the axleOver-low oil level or inferior oil quality
Over-large wandering clearance between
driving bevel gear and driven bevel gear
Wear and disintegration of driving bevel
gear and driven bevel gear
Bearing wear of driving bevel gear
Bearing wear of rear axle shaft
Bearing looseness or wear of speed reducer

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-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-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-50
(c) Tear down the split pin and groove nut from the position
where the lower ball stud.
(d) Tear down the steering knuckle from the position where
the lower ball stud with the special service tool, and
(e) Press down the lower arm to tear down the steering
knuckle.
7. Tear down the Lower ball stud assembly from the posi-
tion where the steering knuckle locates.
Steering knuckle inspection and change
Inspection on and Change of Steering
knuckle
1. Check the steering knuckle
Check the steering knuckle with the dye penetration agent to
see weather has crack, if any crack is found, change the
steering knuckle.
2. Tear down the inner oil seal

drive shaft and the thrust
plate

steering knuckle.
Prize out the inner oil seal

drive shaft from the steering
knuckle with the screwdriver to take out the thrust plate


steering knuckle.
Suspension System and Automobile Axle(SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)

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)N
m
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)N
m
(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)N
m
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)