transmission GREAT WALL HOVER 2006 Service Owners Manual

12. Clutch C1 overspeed shaft and input shaft assembly
Caution:
a. Ensure the correct installation of snap ring.
b. Check the piston for crack.
c. Must not mix the clutch piston out and back spring.
d. If the connector of clutch C1/ C2 is disconnected form the clutch C3, ensure the NO.6 bearing can not slide down
from the bearing retainer.
The installation procedure of clutch C1 overspeed shaft and input shaft assembly is as follows:
a. Check the overspeed shaft groove for damage.
b. Coat the big and small sealing ring with the Vaseline and install it on the overspeed shaft. It can use few Vaseline to fix the
sealing ring on its correct position.
c. Install the clutch disk and other disc on the cylinder according to the following sequence:

steel plate
abrasion plate
steel plate
abrasion plate
steel plate
steel plate
steel plate (optional)
friction disk
steel plate (optional)
friction disk
Caution:
The clutch assembly can support the weight of 19.6N; the distance form the fixing point of input shaft to the friction disk
is 0.70
0.90mm.
Caution:
It should take out the clutch assembly before immerse the assembly in the transmission fluid.
d. Use the tools to check the clutch assembly clearance. Refer to Figure 8.31. Use the proper selected disc plate to acquire the
correct required clearance.
Figure 8.31 clutch C1 assembly clearance
clutch C1
19.6N load
input shaft position
clutch clearance0.7-0.9mm0.7-0.9mm

e. If need to install the new friction disk, please remove the clutch assembly and immerse the friction assembly into the
transmission fluid for 5 minutes at least before the installation.
f. Check whether the clutch C1 wheel axle is matched with the overspeed shaft. It should replace the wheel axle and wheel axle
assembly if loose.
g. Coat the small nylon thrust insulation plate with the Vaseline and installs it on the overspeed shaft. Refer to Figure 8.19.
h. It should be carefully when install the overspeed shaft on the C1 cylinder to avoid the damage of sealing ring.
i. Use the Vaseline to install the small copper C1 wheel axle thrust washer, shown as Figure 8.19.
j. Check the input shaft for problem. Install the input shaft on the cylinder and use the ring spring to install the wire safety of
input shaft and cylinder. Ensure the coil is in groove completely.
k. Use the petroleum jelly to install the gasket and place it on the input shaft.
l. Assemble the C1/C2/C4 clutch, clutch C3 and sun gear, shown as figure 8.24, 8.32
m. Install the assembly in the transmission case.
Figure 8.32 and 8.33 assembly number: 6 bearing and pressure disc to clutch C3 assembly
13. Pump housing and torque support
Caution:
a. Do not clean the solenoid valve by solvent.
b. Ensure the O-ring is installed in the correct position.
c. Do not blow off the first drop and mix it with the ball spring blowed off by the torque converter. ( only for the condition of
installing the transmission to STD pump housing)
d. Do not damage the line bearing on the assembly; avoid any impact for bearing during the loading.
e. Check the end floating of transmission; it is help for the lose and incorrect assembly of any assembly.
Caution: Figure 8.35 The orientation of crossing part is shown in Figure 8.36 to 8.42.
The assembly procedure of pump housing and torque converter is as follows:
a. Check the pump for damage, chip and abnormity; check whether the sleeve of drive gear is fixed.
b. Wash the pump and pump gear carefully; remove all redundant oil and dirt.
c. Install the pump gear and pump. Use the micrometer to measure the depth from the surface of pump to gear surface. The
measured value is the side clearance of pump. The side clearance should be in the range of 0.020-0.040mm.
d. Remove the pump gear from the pump.
e. If had been removed, please replace the pump sealing. Ensure the cleanness of pump sealing.
f. Use the transmission liquid to lubricate the pump gear, pump, washer and sealing and install the pump gear on the pump.

Figure 8.34 pump, cover and torque converter support
g. Use the automatic transmission liquid to lubricate the pump O-ring and
install it on the pump. Place the pump on the other side.
h. Ensure the pump housing cavity and hole are not blocked.
Figure 8.35 Assembly of pump cover
i. Use the automatic transmission liquid to lubricate all loose part before
the installation.
g. Install the primary regulating valve on the pump housing, ensure the
valve slide freely; then install the plug of regulating valve and O-ring.
Refer to Figure 8.36.
k. Install the fixed bolt, install the torque conversion clutch regulating valve,
plug and O-ring. Refer to Figure 8.37
l. Install the fixed bolt. Refer to Figure 8.39
m. Install the torque conversion clutch control valve, spring and O-ring.
Refer to Figure 8.38pump cover assembly
pump housing cover
oil seal
pump assembly
o-ring (pump )
n. Install the fixed bolt, shown as Figure 8.39
o. Install the torque converter detection ball spool and spring, shown as Figure 8.41
p. Install the washer on the pump body. Install the housing disc and solenoid wire maintaining cover on the pump housing; ensure
the edge of disc close to the pump housing.
Shown as Figure 8.34, Tighten the bolt according to the sequence of (1-5), shown as Figure 8.42.
Caution:
Check the smooth of wire and connector. To ensure whether the wire and connector have connection and abrasion on the
input shaft or clutch C1/ C2 cylinder; check the wire and connector for over extension.
q. Tighten the screw of solenoid valve 7.Refer to Figure 8.39
r. Install the pump on the pump housing, tighten all bolts; ensure the pump can be washed without pump housing. Tighten
the bolt in certain sequence; shown as figure 8.42.

Figure 8.36 Primary regulating valve
Figure 8.37 Torque converter clutch regulating valve
s. Install the pump on the washer of transfer case of housing.
t . Make the O-ring is proper for the external diameter of pump.
u. Ensure the pump housing hole in main housing is clean and without dirt.
v. Ensure the plastic connector of solenoid valve 7 is installed on the correct position of main housing.
w. Install the pump and pump housing on the input shaft carefully and avoid the damage of gasket spring. Tighten the pump
housing spring. Refer to Figure 8.43 Figure 8.44.
x. Check whether the transmission end float is fixed in the clearance of part 9.2. Refer to It the end float without filling metal plate
is more than that in instruction, then the metal plate should be placed in surface of NO.4 bolt and input shaft bolt. Refer to
Figure 8.19. if the end float is less than 0.5mm or more than 0.8mm; then the transmission can not be installed correctly and
is beyond the specification partly.
Check the end floating by executing the following procedure:
Connect the disc indicator to the front end of the transmission; place the pointer on the end of input shaft.
Apply about 250N or 25kg force on the input shaft.
Zero the indicating pointer.
Install a small lever on rear of the front clutch cylinder.
The recorded measuring value is the end floating value or called as the clearance of No.4 bearing on torque converter
tube support.
After the completion of the process, adjust the front and rear brake belt according to the specification of details in part 8.4.

14. Valve
Caution:
a. Must not clean the solenoid valve pipe port by solvent.
b. Pay attention to the position of ball on upper of valve.
c. Pay attention to the position of 1-2 Gear and 3-4 Gear gear shift valve which may be exchanged.
d. Check the 4-3 Gear sequence valve and spring for position.
e. Check the 12mm ball on the lower of valve.
f. It should ensure install the correct pump housing (HPPC). Please must not mix the 1
st-Gearlow position ball spool
with the torque converter ball spool .
g. Check the rag of line pressure relief valve and pay attention to replace the iron shim.
h. The hole on the valve is used for fixation and safety and could not be extended.
i . When repair the transmission, it should ensure the solenoid 5 damp coil spring is not broken.
The installation procedure of valve is shown as follows:
a. Use the cleaning solvent (refer to 8.45, 8.46) to wash the upper and lower valve completely and dry it by air; check the valve
cavity, port and hole for damage or block.
b. Install the cushioning baffle positioning bolt and clean all loose parts completely.
c. Check all valves for smooth sliding on its position.
d. Install the proper pump housing, spring and ball. Check the valve and rolling bolt.
e. Install the 1-2 Gear gear shift valve, plug and fixed bolt. Refer to Figure 8.48. Install the 3-4 Gear gear shift valve and fixed bolt.
Refer to Figure 8.49.
Install the 2-3 Gear gear shift valve and fixed bolt. Refer to Figure 8.50. Install the 4-3 sequence valve, spring, plug and fixed
disc.
Refer to Figure 8.51.
f. Install the brake belt action regulating valve (BAR) spring, piston and fixed bolt. Refer to Figure 8-52
g. Install the force and action regulation valve (CAR)spring, piston and fixed bolt. Refer to Figure 8-53
Caution: The aluminum valve is damaged easily.
h. Install the solenoid pressure-supply valve, spring and fixed disc. Refer to Figure 8.54.
i. Install the solenoid valve 6 bolt , spring and fixed bolt.

Figure 8.56 The tighten sequence of valve bolt from upper to lower
q. Install the solenoid valve 1, 2, 3, 4 and 6. Ensure the solenoid valve is clamped by the clip tightly and the bolt is tightened to
the specified torque.
Caution:
The wire harness ground wire port is protected by the solenoid valve fixing plate
r. Install the solenoid valve 5. Ensure the solenoid valve close to valve through the clip.
s. When install the valve with line pressure relief valve, it should install the tapering port of line pressure relief valve, then install
and fix the spring and disc.
t . Install the pin spring; ensure the screw is tightened to the specified torque. Check the damaged spring.
u. Install the manual gear shift valve .Refer to Figure 8.57.
Figure 8.57 Manual gear shift valve
v. It should ensure the position lever is in the position of manual 1st-Gear before install the valve on the transmission.
w. Adjust the valve on the transfer case and install the connection of manual-operated valve steering column and manual-operated
valve. Make the long end of connecting object is proper for the 1
st manual-operated valve. Install the protecting spring and
tighten it according to the specification. Refer to Figure 8.58.
x. Check the positioning drum and manual-operated valve .
Caution:
All hardware must be installed and meet the specification.
y . Connect the wire of connecting solenoid according to the following details:
Solenoid valve 1
red
Solenoid valve 2
blue
Solenoid valve 3
yellow
Solenoid valve 4
orange
Solenoid valve 5
green
Solenoid valve 6
purple
Refer to Figure 8.58.

Figure 8.58 Tighten sequence of bolt form valve to box
15. Installation of oil filter and oil bottom shell
Caution:
a. It should replace the filter when a important mechanical component is damaged and assemble a transmission.
b. To assist the assembly of sealing gasket groove, please coat the surface of oil pan and washer with thin Vaseline to
ensure the sealing gasket is in the groove. Do not rotate the washer, otherwise it will cause the distort or incline of
groove.

Figure 8.59 Bushing of engine oil filter
Figure 8.60 Installation of engine oil filter
Figure 8.61 Tightening sequence of oil pan bolt
It should abide by follows when assemble the oil filter and oil sump tank (Refer to Figure 8.59and Figure 8.60):
a. Use the automatic transmission liquid to lubricate the spring ring of gasket of lubrication oil.
b. Install the oil filter on the valve carefully. During the installation, the socket must be inclined. Refer to Figure 8.59.
c. Fix the oil cleaner assembly.
d. Check whether the magnet is installed in the recess on the corner of oil bottom shell.
e. Assemble the groove on the oil bottom shell. The groove must be bent during the installation.

f. Make the installation of oil bottom shell is proper for transfer case and the tighten the safety valve according to the
specification and sequence (Refer to Figure 8.61). do not distort it.
16.Torque converter and support sleeve assembly
Install the hydraulic torque converter and housing assembly, the procedure is shown as follows:
a. Install the hydraulic torque converter housing on the main case.
Caution:
All hardware should be installed correctly and comply with the specification.
b. Use the Loctite243 or equivalent to fix the torque converter housing; install and tighten it to standard specification.
c. Install the torque converter; ensure the pump gear sealing is installed correctly.
17. Rear wheel drive mode of output ring flange assembly
Assemble the output shaft assembly, the procedure is shown as follows:
a. Place the paw of transmission operating rod on the parking position and lock the output shaft.
b. Wash the output shaft upper line; use the loctite243 or equivalent.
c. Install and tighten the ring flange, O-ring and nut.
Caution: In the heavy steel slide plate, place the ring flange on the upper nut; avoid the damage of bearing.
d. Tighten the nut on the output shaft
Torque type specification N.m Ft/lb
tra n s m iss io n as se m b ly

torque converter housing to
housing M12×32 4, 8or 9 54-68 40-50
rear end housing to housing
-C h a irm a n M12×32 4 54-68 40-50
C onnector housing to housing
-4 W D M8×25 10 35-40 26-30
rear end housing to housing
-2 W D M8×25 10 35-40 26-30
rear servo cover to housing
M8×25 6 30-35 22-26
O il pan to housing
M6×16 9 4-6 3-4.5
O il cooler pipe connection
2 40-45 29.5-33
V alve to housing
M6×26 7 8-13 6-9.5
V alve to housing
M6×45 5 8-13 6-9.5
B rake bar spring
M8×16 1 20-22 15-16
central support to housing
M10×34 2 20-27 15-20
C am disc to housing
M8×16 2 16-22 12-16
G ear-position sensor to
housing 10-24×13 2 4-6 3-4.5
O utput shaft lock nut
M24×1.5 1 100-110 74-81.5
oil filling plug M 20 1 30-35 22-26
Pump housing assembly


Pump to pump cover
M8×55 5 24-27 18-20
Pum p cover to housing
M8×40 6 24-34 18-25
Pum p cover to housing
M8×58 2 24-34 18-25
Pum p cover disc to pum p
cover M6×16 5 13-16 9.5-12
Pum p cover disc to crescent
M6×54 1 13-16 9.5-12
Valve assem bly


U p p e r v a lv e to lo w e r v a lv e
M6×30 24or 25 11-16 8-12
Line socket M 6 1 4-7 3-5
solenoid valve (on/off type
and VPS, including S7) M6×16 7 8-12 6-9
Table 8.1 Torque specification

thickness Component No. thickness Component No.
Adjustment of front and rear brake belt
1. Setting procedure of brake belt
The setting procedure of brake belt is shown as follows:
a. For the calculating method of front servo mechanism thrust lever refer to Figure 8.62, dimension; standard A.
.Allow the air pressure is in 650/700kPa in the operating area of front servo mechanism (external of B1), (refer to
Figure 8.63).
. The forward dimension of thrust lever minus 3mm.
Dimension requirement for selection of shim:
Caution:
The small shim requires that the shim size is 1mm always; the available thickness is listed in Table 8.2.
. Release air.
b. Proper shim to end of thrust lever pole.
Check the shim for damage, worn or corrosion; replace it if necessary.
The shim is installed on the support surface between the transmission and pole flange, refer to Figure 8.62.
Install the shim by hand, and not the hammer or pressure.
Press the shim by hand until has the click the noise. The noise means the shim is clamped by the housing correctly.
c. Recheck the stroke of thrust lever 3mm
0.25mm.
2. Setting procedure of rear brake belt
The setting procedure of rear brake belt is shown as follows:
a. The setting of distance A is form the back surface of servo piston to inner surface of transmission, use the vernier caliper. Refer
to Figure 8.64.
A allows the air pressure of 650/700kPa is in the front servo mechanism operating area (external of B2), (refer to Figure
8.63).
Deduct 3.75mm from the movement of piston and use the 2.5 mm shim to divide the rest distance.
Caution:
The small shim requires that the shim size is 1mm always; the available thickness is listed in Table 8.2.
. Release air.
b. Select the proper shim for end of thrust lever pole.
Check the shim for damage, worn or corrosion; replace it if necessary.
The shim is installed on the support surface between the transmission and pole flange, refer to Figure 8.64.
Install the shim by hand, and not the hammer or pressure.
Press the shim by hand until has the click the noise. The noise means the shim is clamped by the housing correctly.
c. Recheck the stroke of piston for 3.75mm
0.625mm.
Table 8.2 Effective thickness of shim