ESP GREAT WALL SO COOL 2006 Service Manual

Preface
With the increase of automobile demand in China, our automobile industry also experiences a rapid
development. The trucks including SUV, manufactured by Great Wall Motor Co., Ltd, which are sold all over
China, are in the leading place in terms of their sales volume, in order to satisfy the demands of various maintain-
ing staff, technicians and managing staff of Changcheng Co., Ltd, we compile this maintenance manual accord-
ing to the latest technological data. This manual covers six vehicle models including Deer, Safe, Sailor, Sing, So
Cool and Pegasus, its main content includes:
Part I is general introduction, which introduces the application index of this manual.
Part II introduces the chassis system, which mainly includes the technologies of dismantle, inspection,
adjustment, repairing, assembly and mount of the clutch, gear box, transfer box, drive shaft, suspension system
and automobile axle, braking system and steering system, etc. each operation approach is illustrated with figure,
which not only presents the maintenance procedure, but also clearly describes the technical requirements and
application limit.
Part III introduces the electric system and air-conditioning system of the automobile body, which mainly
covers such items as the location and content of protective box, power supply system, starting system, lighting
system, combination instrument, backup radar system, wiping and washing system, center control locking and
power window system, acoustical equipment system, full wire harness and air-conditioning system, etc. Electric-
ity diagrams for those electric systems are given in this manual so as to facilitate the maintaining technicians to
find out the problem easily and quickly.
Part IV introduces the external and internal body decoration, which mainly covers the dismantling, inspect-
ing and assembling requirements of the engine cover, front and rear doors, adhesive strip of body collision
avoidance, wheel shield, wrapping angle of wheel-shield and exterior trim panel, front and rear windshields,
side-window glass, rear-door glass, rear platform of cargo compartment, rear door, instrument panel, safety belt,
seat, tail-fin, luggage rack, and reserve tire bracket etc. The dimensions of vehicle body and frame are also given
to maintaining staff for reference during their repairing.
During the narrations of each part, items such as troubleshooting, maintenance notice, maintenance data
and application limit, fastening torques of bolts and nuts for special purpose, SST, SSM and lubricant materials
and so on are also introduced. Various maintenance data are briefed in attachment for reference.
Altogether, this manual is comprehensive in content, visual in illustration, clarifying in requirement and
plain in language. It can be referred by the maintaining staff, technicians and professional managing staff.
Even though we try our best to compile this manual in a strict earnest manner, we cannot guarantee that all
contents in this manual are correct. Therefore, users shall not put forward any claim with Great Wall Company
according to this manual; we are not in the position to hold the responsibility for the loss caused by usage of this
manual. Due to our limited knowledge, it is unavoidable to find error in this manual, any criticism and correction
from you is welcomed.
The final explanation power for this manual is subject to Great Wall Motor Co., Ltd
Compiler
May 2006

IN-3Introduction
How to Use This Manual
Introductionóhow to use this manual
The repairing approaches are described step by step:

The illustrations show you what to do and at which position.

The theme of repairing operation tell you what you need to do.

The detailed instruction show you how to accomplish the repairing and
introduce to you other related affairs, such as specification, warning etc.
Example:
Check and adjust the flange bounce
(a) Attach the dial indicator seat to the reducer housing, and touch the
flange face with the measuring head of dial indicator, run the flange
and observe the pendular range of the indicator carefully.
Full bounce tolerance of face : 0.10mm
Illustration:
what to do and at which positionSpecification
This formula can help the experienced technicians find out the failure
causes in short time. Overhauling staff can browse the operation theme
and refer to the detailed description thereunder where necessary; impor-
tant specifications and warnings are written out in boldface.
Specification
The corresponding specifications are given in boldface in each repairing
approach of this manual, which allows the overhauling staff to check the
specification while keeping on repairing work.
Warning, Notice and Remark

Warning written out in boldface means there is possibility of self-
injury or harm to others.

Notice written out in boldface means there is possibility of damage
to parts under repairing.

Remarks singled out independently, but not in boldface, serve as
supplementary descriptions to help you accomplish the work more
efficiently.
Vehicle Code
There are six vehicle models in this manual, the model codes are as follows:
Deer model
Dr
Sailor model
SL
SO COOL model
SK
Safe model
SF
Sing model
SY
PEGASUS model
SJ
Abbreviation used in this manual
A/C
air-conditioner
ECU
electronic controller unit
SST
special service tool
2WD
two-wheel drive
4WD
four-wheel drive
PMãã
Topic:what to do ?
Detailed introductionz;How to do?

MT-2Gear Box
Notice
Notice
Notice for disassembly and assembly of gearbox
Notice shall be taken during the gear disassembly and assembly on the soft handle for the parts, especially
for the coupling faces so as to avoid the collision; each part shall be put down in order to avoid the missing
or mistaking.
Notice shall not only be taken in the aforesaid aspects, but also in the following items
1. Wash all parts before assembly (rubber fittings and washers excluded).
2. Various oil seals, retainer rings for shafts, spring-type pins shall not be reused.
3. Lubricating oil shall be coated on the friction surfaces, and lubricating grease shall be coated on the lips
of oil seals.
4. Rolling elements shall not be used to transfer the pressure during the various bearing assembly.
5. Lip-type oil seal must not be sloping when assembling it.
6. The openness at the two ends of the spring collar shall be misfit when assembling the component
elements of the synchronizing instrument, and
7. No part is allowed to leak the lubricating oil when the gearbox locating at its working place.

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-83
Rear speed reducer
Element figure
column bolt
bearing7306E
oil-guard tray

oil seal
flange and dust
cover assembly
flat washer

adjusting ring
bearing 200719Espeed reducer housing and
differential bearing coverstop gasket80-110
18-26

washer
adjusting washer
driving bevel gear
Bearing 7607E jacketadjusting washer
65-95
=
lock plate
differential housing
axle driven
bevel gear

Parts that cannot be reused after being used:specified torque
N
M
Suspension System and Automobile Axle (Rear)
Rear Speed Reducer
double-eared stop washer

SA-90
5. Mount the axle driven bevel gear on the differential housing:
(a) Mount on the lock plate and screw up the bolts to the
specified torque.
Tightening moment
(65-95)N
m
Notice: screw up the bolts diagonally.
(b) Tighten the lock plate with hand hammer and flat head
pinch.
6. Mount the inner race and roller assembly of bearing
200719E;
Mount the bearing inner race and roller assembly in differen-
tial housing with the pressure machine and SST.
7. Mount the differential assembly;
Mount the differential in the speed reducer housing.
When mounting the differential that hasnít changed the inner
race and roller assembly of bearing 200719E, ensure the outer
race of the left and the right bearings that has disassembled
should match with their inner racers respectively.
8. Mount the adjusting ring;
Adjust the clearance between the driving bevel gear and the
axle driven bevel gear to the moderate size. And press the
bearing outer race to flatten it with adjusting ring, and then
screw up moderately.
Notice: the two adjusting rings should be adjusted
synchronically in the movement of same direction.
Suspension System and Automobile Axle (Rear)
(Dismantle of Rear Speed Reducer)

BE-38Body Electric System
Backup Radar System
Inspection on Common Trouble
Failure Judgment Methods
No backup radar display (no
system start notification when
the reverse gear is engaged)Check whether the plugging elements of power supply
of back up radar control box are in well connection as
shown in drawing H in next page.(when the reverse
gear is engaged, touch the detector, if there is vibration,
which shows the detector is powered.
Check whether the wire harness of inner mirror in
electric room and that on the top of body are in well
connection as shown in the drawing A in next page
Check whether the wire harness of back up radar
control box is well connected with that of chassis
and that on the top of body.
Rotate the vehicle key to the ACC position and
engage the reverse gear, then measure to see whether
the back up power supply reaches to 12 V with the
multi-meter of 50 V of voltage, refer to the
red
and black
positions shown in the drawing in next
page.
If the voltage reaches 12 V, change the backup
radar control box in trial firstly, then the inner
mirror in electric room, finally change the roof
wire harness and the chassis.
No backup radar display (but
there is start notification when
the reverse gear is engaged)
remark: such trouble occur
under the blocking condition.Check whether the power supply of back up radar
is well located, see the red and position in the
drawing of next page.
Check and align the plugging element.Poor properties of ultrasonic wave
Change the ultrasonic detector heads.
Continuous back up radar red
lamp alarming (remark: there
is no obstacle within 0.5 m away
from the detector head)Check whether the detectors in the two circuit of
back up radar control box is well plugged, see the
marked positions F, G in the drawing of next page.
Check and well connect those plugging elements
Poor connection of the left/right ultrasonic detector head
Poor performance of back up radar control box.Check and well connect those plugging elements
Change the ultrasonic detector head
Change the back up radar control box.
Vehicle modelpc
Alarming by mistake
The rear standby tire is removedConduct the inspection operation for the rear
standby tire at the spacious place
fail to detect the obstacle
The detector head doesn
t workChange the detector head
There is dirt on detector headClean the detector head
Rear standby tire inspection1. engage the reverse gear for five times repeatedly within ten seconds at the spacious place so that the red
lamp on the screen flash three times, the system will automatically remember the standby tire status.
2. When the body height varies or the stand by tire is opened, make a new inspection for the rear stand by
tire to ensure the backup radar in normal operation.
Seven section of lamp display
Column I
1.49m-1.3m Column II
1.29m-1.1m
Column III
1.09m-0.9m Column IV
0.89m-0.75m
Column V
0.74m-0.6m column VI
0.59m-0.45m
Column VII

0.45m
Remark: the right and left LED display the direction and distance of obstacle respectively for driver
reference.If the voltage fails to reach 12 v, check the power
supply system of original vehicle
s large wires
to restore the voltage to 12 V.
Vehicle model SL SK
fail to detect the obstacle
Trouble description Repairing and treatment approaches

BE-66
Mount of bass speaker and VCD
(a) bass speaker
Connect the audio output wires of bass speaker with the sockets in bass speaker correspondingly according
to the wire color (red plugging element should be plugged in red socket, yellow plugging element in white
socket, the grounding wire (black), power wire (yellow) and signal wire (blue) should be fixed at the
corresponding positions (GND
12V
REM) on bass speaker tightly.
(b) multi-disc VCD
The feed cables of VCD main device should be connected as marked, when connecting the plugging element
of wire harness of video camera (CAM) with the plugs on main device (CAM), notice should be taken on the
two arrow marks so as to prevent the plugging element damage; The audio output wire plugging elements (red
and yellow plugs) of bass speaker should be connected with the red and white sockets of mainframe (AV OUT);
the plugging elements of TV receiving input wire of amplifier should be connected with either of the plugging
elements(AV AN) of the mainframe; the plugging element (black and white ACC) of anode wire of power
supply should be connected with the red socket (ACC) of mainframe wire harness; grounding wire plugging
element (black GND) should connect with the black socket of mainframe wire harness; the plugs of audio input
wire of deci-disc data converter should be connected with the red and white socket on mainframe according
to the plugs color (the plugs (red, white CD OUT) of audio input wire of eight-disc box should be connected
with the red, white socket (CD IN) on mainframe according to the plug color, the yellow power wire plugging
element (BATT) should be connected with the yellow power wire socket (BATT) on mainframe, the electric
aerial, plugging elements of control wire of function amplifier should be connected with the electric aerial
(CTL), socket of control line of function amplifier on mainframe. After completing the connection of plugging
elements, wrap the connecting position with adhesive strap in order to prevent those plugging elements from
peeling off, the plugging element of feed cable of TV receiving aerial can connect with any two of the four
holes on amplifier, meanwhile, turn on the switch (with a red indicating lamp) of amplifier when watching the
TV play. When mounting the VCD mainframe, push the wire harness innermost as can as possible so that there
is spacious room for mainframe, then push in the mainframe, notice should be taken not to damage the wire
harness. Fasten the mainframe to the degree that it cannot be pull out by hand after assembling, if it cannot be
clamped tightly, prize out the two clips on the inner sleeve, then fasten the mainframe, and mount on the
external decoration frame finally. When disassembling the mainframe, tear down the external decoration
frame first, then insert the special key into the open grooves at two sides to pull out the mainframe.Body Electric System
Acoustical Equipment System