oil level GREAT WALL SO COOL 2006 Service Manual

MT-3
Troubleshooting
Gear Box
Troubleshooting
Non-use of clutch
Non-full separation of clutch
Severely warned tooth rings of synchronizing
fittings
Over-hard locating springUse the right driving approach
Checking for adjustment
Change
Change Difficulty in gear engagement
Over-low oil level
Lubricating oil of inferior quality
Non-timely oil change
Unsuitable axial location or clearance of gears
Bearing damage
Burr or collision on gearAdd oil to the specified level
Change it with the specified oil
Change the oil and damaged parts
Check for adjustment
Change
Repair or change the gear
Oil leakage, oil penetration Oil added above the specified level
Loss or missing of bolts
Vent plug trouble
Sealing element damageAdjust oil to the given level
Reassembling or fasten the bolt according to
the specified torque
Change
Change
Damage of synchronizer Overexert in gear shift
Non-use of clutch
Damage on spring collar of synchronizer
Incorrect mounting of drive shaftChange
Use the right driving approach
Change
Check for adjustment
Non-engagement of gear Trouble in controlling mechanism
Incorrect assembling the locating spring or
steel ball
Invalidation of locating spring
Severely worn gear sleeve or fork groove
Seriously worn toggle forkCheck for adjustment
Reassembly
Change
Change
Change
Burning bearing, burning gear Over-low oil level
Inferior lubricating grease
Non-timely oil change, over-dirty oil
Inter-use of differential oil or usage of
additiveChange damaged parts and add oil
Change the damaged parts and lubricating oil
Change damaged parts and lubricating oil
Change damaged parts and lubricating oil
Difficult in gear disengagement Spring invalidation of synchronizer
Warn inner groove of tooth ring of synchronizer
Tooth ring of synchronizer choked on conical
face
Toggle fork deformation or toggle fork axle
deformation
Severely worn toggle forkChange
Change
Change
Change
Change
Methods for troubleshooting
Over-loud or abnormal noise
Common Failures Causes

TF-65D5D-Oil filling plug
5L-Oil drain plug5L2. Regular lubricant change
(a) The oil level of lubricant in transfer box shall be checked
when exchanging the engine lubricant or after the vehicle
covers 8000 kilometers, and the lubricant shall be added
as requirement.
(b) The lubricant shall be changed with the specified one
every year or after the vehicle covers 48000 kilometers.
3. Lubricant inspection approach
(a) Clean the oil filling plug and the around area.
(b) Open the oil-filling plug to check whether the lubricant
can flows out or not.
(c) if the lubricant can flow out, which means the real
lubricant volume is under the prescribed value, and the
specified lubricant shall be added into the transfer box
until the lubricant can flow from the oil filler hole.
(d) Propel the oil-filling plug tightly according to the given
Tightening moment.
Tightening moment
(19
30)N
m
Notice: The vehicle shall run for a certain time before
checking or exchanging the lubricant so that the
temperature of lubricant in transfer box may be a little
higher. Do not use hammer or other punching tools to
open or propel the oil drain plug or oil filling plug, otherwise,
the thread hole on the frame will be damaged
4. Lubricant change
(a) Clean the oil filling plug and oil drain plug and the around
area.
(b) Put down a oil container under the transfer box.
(c) Open the oil drain plug.
(d) Open the oil-filling plug.
(e) Drain the lubricant up.
(f) Mount the oil drain plug and screw it up according to the
given Tightening moment.
Tightening moment
(19
30)N
m
(g) Add the lubricant through the oil filler hole until the
lubricant overflows. Mount the oil-filling plug and tighten
it according to the Tightening moment.
Tightening moment : (19
30)N
m Transfer Box
lubricant grade: ATF--3Product Description and Simple Maintenance

TF-8Transfer Box
Disassembly and Mount of Transfer Box
2. Transfer box mount
a) Coat the lubricant grease on the output axial
spline of the gearbox with a thin sleeve contain-
ing lubricant grease.
b) Mount a new gasket on the mounting face of the
transfer box.
c) Lift the lifting bracket of transfer box and align
it to the same axle with the gearbox.
Notice: The transfer shall be guaranteed to flush
with the gearbox before connecting the spline.
Do not handle it forcefully to press the transfer
box spline into the gearbox. Otherwise, damage
will be caused, run the rear output shaft where
necessary to aim at the spline.
(d) Move the transfer box forward slowly so that
the spline and pin of the input shaft of gearbox
reach the front body of the transfer box, and the
gasket attaches on the gearbox completely.
(e) Ensure that the mounting holes of the front
body of transfer box, gasket, and gearbox are in
alignment and then mount the sets of bolt and
nut.
Fastening torque
(35-48)N
m
(f) Connect the rear drive shaft and the rear output
flange of the transfer box.
(g) Connect the front drive shaft and the front
output fork flange of the transfer box.(h) Connect the venting valve and the soft ventila-
tion pipe.
(i) Connect the cables of odometer that locates
nearby the transfer box.
(j) Connect all wire harnesses that connected with
the transfer box, and
(k) Add the lubricant of right brand.
Notice: when starting the engine, if the lubricant
is added incorrectly or in unsuitable volume,
which may lead the transfer box to damage.
Notice: as for the transfer box mounted on
vehicle, oil pump shall be used when adding oil
for it.
Notice: In case the transfer box is taken apart for
maintenance or inspection, there will be no
lubricant supplied by oil pump in the oil passage
on the top of transfer box. Therefore, it is not
accurate to control the oil volume by opening the
oil filling plug, in such condition, the oil passage
will be filled with oil once the oil pump runs. If the
wheel can run, such operation can be conducted
on the lifting jack. The oil level shall be rechecked
once the oil pump runs.
(l) Put down the vehicle after finishing the lubri-
cant inspection, and connect the cell cathode.

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-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)N
m
3. Mount the stabilizer rod on the lower arm.
Fastening torque
(20-26)N
m
4. Mount the vibration damper on the lower arm.
Fastening torque
(127-147)N
m
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 torque
180N
m
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)N
m
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)

SA-53
3. Mount the stabilizer rod on the lower arm.
Fastening torque
(20-26)N
m
4. Mount the vibration damper on the lower arm.
Fastening torque
(127-147)N
m
5. Mount the steering knuckle arm and the brake oil pipe
bracket on the steering knuckle, and coat the sealing
agent 1271 on the bolt thread.
Fastening torque
180N
m
6. Mount on the dust cover and the brake shell.
Align the locating hole of dust cover and the groove of the
steering knuckle so as to guarantee the dust cover and the
steering knuckle are concentric.
Fastening torque
(25-29)N
m
7. Mount the front wheel hub and the front brake disc as well
as the brake caliper.
8. Check the height of the brake liquid level and, if required,
add the brake liquid, exhaust the gas of the braking
system.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)

SA-84
On-vehicle Change of main-teeth oil seal
1. Disconnect the drive shaft from the speed reducer:
(a) Mark the assembly mark on the two flanges;
(b) Tear down the four sets of bolt and nut.
2. Tear down the flange and dust cover assembly.
3. Tear down the oil seal.
Tear down the oil seal with SST.



4. Mount on the new oil seal:
(a) Coat the lithium base grease on the lips of oil seal;
(b) Tap in the new oil seal with SST.
Remark: tap the new oil seal until it is in place.
5. Mount the flange and dust cover assembly.
6. Screw up the nut to the specified torque.
Specified torque: (140-160)N
m
7. Rivet the nut.
8. Connect the drive shaft flange with the speed reducer
flange:
Align the assembly mark and connect the flanges with bolts.
Tightening moment
(69-79)N
m
9. Check the oil level of the speed reducer.
Change the gear oil where necessary.
Oil brand: heavy-duty oil of grade
GL-5
Oil volume: add the oil until it overflows from the oil filler
outlet.
Viscosity: SAE 85W/90 Suspension System and Automobile Axle (Rear)
Rear Speed Reducer

BR-6
Operation test of vacuum booster
Remark: check the operation of vacuum booster with the
vacuum booster tester if workable.
1.Operation inspection
(a) Before starting the engine, tread down the brake pedal
several times, and check the pedal reservation distance to
ensure there is no change occurs.
(b) Tread down the brake pedal and start the engine. If the
treaded pedals continue to move downward, which means
the operation is normal.
1. Inspection on Air-tight
(a) Start the engine for 1-2 min and then turn it off. Then
tread down the brake pedal slowly for several times, if the
pedal move downward continuously in the first, but
return gradually in the second or third time, which means
the vacuum booster has a good air-tight.
(b) Tread down the brake pedal when the engine is working,
then stop the engine, but tread the pedal down. If the
reservation distance doesnít change within the 30 seconds,
which shows the air tight of vacuum booster is good.
Air-bleeding of braking system
Remark: air-bleeding is required if any operation for braking
system is conducted or the pipe line is doubted to have air.
1. Fill the oil cup with the brake liquid
Check the liquid level of oil cup after the air in each wheel
brake pump is exhausted. If necessary, add the brake liquid.
2. Connect the vinyl resin pipe with the vent screws.
Insert the other end of pipe into the container with half brake
liquid.
Remark: the air-bleeding shall begin from the longest pipe line
when the wheel-brake cylinder is exhausting the air.
3. Air exhaust of the pipe line in braking system
(a) Tread down brake pedal slowly several times.
(b) Loosen the vent screws until the brake liquid flows out
while letting the assistant tread down the pedal. Then
screw up the vent screws.
(c) Repeat this approach until there is no air in the liquid.
4. Repeat the approach for the wheel-brake cylinder.
normal
abnormal
the third time
the second time
the first time
Braking System
Inspection and Adjustment

BR-8Braking System
Master Cylinder
Master Cylinder
Disassembly of Master Cylinder
1. Tear down the alarm joint for liquid level;
2. Exhaust the brake liquid with the injector:
Notice: brake liquid must not be left on the paint surface,
if any, clear it away.
3. Tear down the pipeline of braking system;
Tear down the pipeline of braking system from the master
cylinder with SST.
4. Take apart the master cylinder:
(a) Tear down the four nuts and the three-way joint.
(b) Tear down the master cylinder and sealing washer from
the vacuum booster
cup cap
filtering screen
oil cup
vacuum booster assembly
sealing liner
master cylinder bodyfront three-way valve
SST
SST