oil change GREAT WALL SO COOL 2006 Service Manual

IN-4
Overall Repairing Description
1. Keep the vehicle clean and prevent it from
damage with guard plate, seat and floor cover
cloth.
2. Put down the dismantled parts in order during
the dismantle process so as to facilitate the re-
assembly
3. Observe the following items:
a) Disconnect the cable cathode from the
accumulator terminal before the electric
operation;.
b) Disconnect the cable from the cathode
connected to the vehicle body when check-
ing or repairing the accumulator where
necessary.
c) In order to avoid the damage of terminal
post of accumulator, loose the bolts first,
then pull up the cable vertically when
dismantling, don
t wring it or prize it.
d) Clean the terminal posts of the accumula-
tor with dishcloth, and do not scrape them
with file or other similar tools to avoid
damage.e) Mount the cable terminal on the post with loosened nut, then
fasten the nut. donít tap the terminal onto the post with
hammer.
f) Be sure to check whether the cover of positive terminal (+) is
well located or not.
4. Check all hoses and wire plugs to verify whether they are
connected solidly and correctly.
5. Parts that cannot be reused after being used.
a) The following parts should be changed with new one regularly:
split pin, sealing washer, O-ring and oil seal, etc.
b) parts that cannot be reused after being used is marked with

 in the element figure.
6. Pre-coated parts
The pre-coated parts including the bolt and nut are coated with
locking seal glue in factory.
a) In case the pre-coated parts are moved due to its fastening,
loosening or other causes, they must be coated again with the
specified seal glue.
b) Coating procedure of pre-coated parts
1) Clear away the former seal glue from the screw thread of
the said parts.
2) Dry the parts with compressed air.
3) Coat the screw thread of the parts with the specified
locking seal glue.
c) The pre-coated parts are marked with the
 in element
figure.
7. When necessary, sealing agent or sealing ring to prevent the
leakage.
8. Each specification shall be followed strictly. And the torque
spanners should be used.
9. Determine the necessity of using the special service tools (SST)
or special service materials (SSM) according to the real situation.
SST and SSM must be used where necessary and the repairing
should be in accordance with the repairing approach. SST list
and SSM list are attached to this manual.
10. Be sure to check whether the rated current of the new fuse is
correct when changing the fuse. The fuse rated current should
not larger than that of securing fitting and the fuse of smaller
rated current must not be used.
11. Be careful to hang or support the vehicle on the suitable place
when propping up or raising it.
a) In case prop up the vehicle at the front or back part, the wheels
must be blocked to guarantee the safety work. Introduction
Overall Repairing Rescription
tighten seal glue

CL-2Clutch
Troubleshooting
Troubleshooting
Trouble Causes Repairing approaches
Difficulty in gearshift
or non-gearshiftOverlarge free stroke of clutch pedal
There is air in clutch pipe
Failure of clutch brake-wheel cylinder
Failure of clutch master cylinder
Overlarge clutch pendulum difference due to incorrect mounting, the
friction liner is stained with oil or is breaking
There is dirty or adhesive materials on spline of input shaft or clutch rib
Failure of clutch pressure plateAdjust the free stroke of pedal
Exhaust the air in clutch pipe
Change the clutch brake-wheel cylinder
Change the master cylinder
Check the clutch rib
Repair according to requirement
Change the clutch pressure plate
Disengagement of gear
box or clutch slipAbrasion of clutch guide shaft
Insufficient free stroke of clutch pedal
The friction liner of clutch rib is stained with oil or is worn
Failure of clutch pressure plate
Seize up of separation forkChange the guide shaft
Adjust the free stroke of pedal
Check the clutch rib
Change the clutch pressure plate
Check the separation fork
Clutch seize-up or
shakingThe friction liner of clutch rib is stained with oil or is worn
Failure of clutch pressure plate
Looseness of engine seatCheck the clutch rib
Change the clutch pressure plate
Repair according to requirement
Looseness of clutch
pedalThere is air in clutch pipe
Failure of clutch brake-wheel cylinder
Failure of clutch master cylinderExhaust the air in clutch pipe
Change the clutch brake-wheel cylinder
Change the master cylinder
Over-loud clutch noiseSeize up of separation fork;
Abrasion or stained spot of separation bearing
Abrasion of guide bearing
Parts looseness in clutch pressure plateRepair according to requirement
Change the separation bearing
Change the guide bearing
Change the clutch pressure plate

MT-1
Gear box
page
Notice ........................................................................... MT-2
Troubleshooting ........................................................... MT-3
Dismantle of Gear Box ................................................. MT-4
Mount of Gear Box ....................................................... MT-7
Disassembly of Gear Box ............................................. MT-10
Input Shaft Assembly ................................................... MT-18
Element Drawing ...................................................... MT-18
Inspection on Synchronizing Ring ............................ MT-18
Bearing Change ....................................................... MT-18
Output Shaft Assembly ................................................. MT-20
Element Drawing ...................................................... MT-20
Disassembly of Output Shaft Assembly .................... MT-21
Inspection on Output Shaft Assembly ...................... MT-23
assembly of Output Shaft Assembly ......................... MT-25
Countershaft Assembly And Reverse Idle Gear
Assembly ...................................................................... MT-29
Element Drawing ...................................................... MT-29
Disassembly Inspection and Assembly of
Countershaft Assembly ............................................. MT-29
Assembly of Reverse Gear ...................................... MT-31
Rear Housing assembly ............................................... MT-33
Element Drawing ...................................................... MT-33
Change of Oil Seal ................................................... MT-33
Change of Shaft Bush .............................................. MT-33
Inspection on and change of Position-Limit
Mechanism Cluster ................................................... MT-34
Front Cover of Bearing ................................................. MT-36
Element Drawing ...................................................... MT-36
Change of Oil Seal ................................................... MT-36
Assembly of Gear Box ................................................. MT-37
MT

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

MT-4Gearbox
Dismantle of Gear Box
3. Tear down the shifting ball of gear change lever
Loose the locking nuts by dextroroting the ball.
4. Tear down the glove box
Dismantle the four bolts of the glove box and put the glove box
into the suitable place.
5. Tear down the dust cover.
6. Tear down the gear change lever.
7. Raise the vehicle to discharge the oil in gearbox.
Warning: the reliability of vehicle shall be verified.
8. Tear down the drive shaft.
(See page PR-5)
9. Tear down the odometer sensor and the plugging
elements of backup switch
10. Tear down the vent pipe.
Tear down the heading exhaust pipe from branch exhaust pipe
Dismantle of gearbox
1. Disconnect the cathode wire from the cathode of storage
cell.
2. Tear down the setting bolts of fan cover.
Tear down 4

MT-33Gearbox
Rear Housing Assembly (Element Drawing, Change of Oil Seal, Change of Shaft Bush)
Rear Housing Assembly
Element drawing
Change of Oil Seal
1. The rear housing oil seal shall be changed where necessary.
(a) Dismantle the oil seal with SST.
(b) Press in the new oil seal with SST
2. The driven oil seal of speedometer shall be changed
where necessary
(a) Pry out the oil seal with SST.
(b) Tap the new oil seal into the shaft bracket with SST.
Change of Shaft Bush
The shaft bush shall be changed where necessary
(a) Tear down the oil seal and dust bush.
(b) Heat the ending parts of extension frame to 80
-100
in
the oil groove.
(c) Tear down the shaft bush with SST and mount on the new
shaft bush.
SST
SST
SST
SST
SST
oil reservoirlocating spring bolts and
spring cylindrical pinrear housing oil seal
assemblyrear housing dust
cover
oil groove
component element
of position-limit
mechanismrear housing
cluster

MT-36Gearbox
Bearing Front Cover Assembly (Element Drawing, Change of Oil Seal)
Bearing Front Cover Assembly
element drawing
bearing front cover
assembly
washerfront cover oil seal
assembly
Change of oil seal
The oil seal of the bearing front cover shall be changed where
necessary
(a) Pry out the oil seal with screwdriver
(b) Press in the new oil seal with SST.
Depth of oil seal:
Upper tooth
9.5mm
Tang tooth
(12.4
0.4)mm
SST

TF-3Transfer Box
Troubleshooting
Common troubles Causes Resolving approaches
Change the lubricant or supplement the
lubricant volume.
Guarantee the torque of all connecting
elements stand at the specified value.
Open the transfer case to check the
bearing and othe parts whether is weared
or daamaged,if this happened,change
the parts.
Difficulty in mechanic gearshift or
outplace gear engagement
Troubleshooting
Incorrect lubricant or insufficient
lubricant volume.
Looseness of connecting bolt or other
connecting element.
Noise from the transfer box bearing Noise, which is spreader by the transfer
box instead of clutch, engine, drive shaft
and other parts, occurs in each speed. No driving of front wheel in the four-
gear engagementDrive chain breakDisassemble and check the damage of
inner parts, and change the chain. Adjust or repair shift lever.Open the
transfer box to check the toggle fork and
guide shaft, and change the parts as
requirement.Open the transfer box to
check whether the parts is wearied or not,
and, if any, change the weary parts.Open
the transfer box to check whether the
parts is wearied or not, and, if any, change
the weary parts.Open the transfer box to
check whether the parts is wearied or not,
and, if any, change the weary parts. Overlarge loose fit clearance of the
shift toggle fork on the shift guide
shaft.
Wear of the shift toggle fork
assembly including pin and contact
roller.
Wear of the shift cam hub and the
liner.
Attainment of coupling gear Mechanic gearshift seizing at a certain
location Engagement failure of the mechanically
shift transfer boxDamage or unsuitable adjustment of
the shifting mechanism.
Damage or serious wear of the inner
shifting parts, or looseness or
attainment of the shift toggle fork
assembly on the guide shaft.
Unsuitable adjustment of shift lever.Adjust or repair the shift lever mechanism.
Change the seriously wearied parts.
Change the loose or weary parts. Refer to the vehicle manual for correct
operation.
Add the specified oil of given volume.
Open the rear cover of transfer box to check
and changer the damaged parts.
Open the rear cover of the transfer box to
check whether the sliding parts can slide
freely along the axle, if not, dismantle it and
change the damaged parts. Incorrect operation.
Lubricant of inferior quality or
insufficient volume.
Adhesive bonding of shift toggle fork.
Adhesive bonding of the sliding joint
cover, locking sleeve or gear. Mechanic gearshift failure under the
movement of shifting handleBreak or damage of the shift rocker
arm or shift lever.
Damage of the guide plate of shifting
cam;Change the damaged element.
Open the rear cover of the transfer box to
check the damaged element and change
it. Electric gearshift troubleDamage or failure of electrically
controlled element, electric module,
speed sensor, electric motor, electric
clutch, or built-in wire harness.
Damage or worn of shifting cam,
joint cover, locking sleeve, toggle
fork or shift guide axle.Adhesive
bonding shiftRefer to the vehicle usage manual to
diagnose the failure element and change
it as requirement.
Dismantle the weary or damaged parts
and change it as requirement.
Dismantle and check the free movement
of sliding element, and change it as
requirement

TF-4Transfer Box
Troubleshooting
Common troubles CausesResolving approaches
Unsuitable tire pressure.
Noise, which is spread by the transfer
box instead of the clutch, engine or other
parts, occurs at each speed.Gear noise.
Damage or wear of chain gear or
chain.Open to check whether there is weary
element or damaged element (including
the odometer gear) and, if any, change
them
Noise occurs in the high-speed or low-
speed four-gear driving.Open to check whether there is wear or
damage, and if any, adjust the tire pressure
to suitable value.
Oil leakage in transfer box. Frame Break of transfer box.
Oil leakage of other element.
Ventilation pipe block
Over-added lubricant or lubricant of
unsuitable brand
Looseness of the bolts on sealing
face.
Sealing glue of different brand or
unused sealing glue.
Oil seal wear or damage.Change the frame.
Check the leakage by wiping dry.
Open and clean it and, if necessary,
change it.
Use the specified lubricant and adjust the
lubricant to suitable volume.
Propel the bolts tightly as requirement.
Use the specified sealing glue and propel
the bolts tightly as required.

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