transmission GREAT WALL DEER 2006 Service Manual

MT-20Transmission
Output Shaft Assembly (Components Figure)
Output shaft assembly
Components figure
synchronizer spring
expansion ring
snap ringsynchronizer
slide block3th,4th gear synchronizer
meshing sleeve3th gear needle bearing
synchronizer hub of 3rd
and 4th geartoothed ring of
synchronizergear components of 3rd gear
steel ball
synchronizer sliding blocksynchronizer meshing sleeve
of 1st and 2nd gear
gear components
of 1st gear1st gear shaft sleeve
locking ring of output
shaft rear bearing
spring expansion ring
needle bearing of
2nd gear
gear components
of 2th geartoothed ring of synchronizer
for 1st and 2nd geartoothed ring of synchro-
nizer for 1st and 2nd gearneedle bearing of 1st gearrear bearing of
output shaft
gear of 5th gearodometer drive geardrive gear snap ring of odometer output shaft
snap ring of 5th gear
steel ball

MT-21Transmission
Output Shaft Assembly(Disassembly of Output Shaft Assembly)
Disassembly of output shaft assembly
1. Remove the drive gear of speedometer
(a) Pry down the two shield rings with open end ring plier
(b) Dismantle the drive gear of tachometer.
(c) Take out the steel ball with magnetic stick.
2. Remove the 5th gear,rear bearing of output shaft,1st
gear assembly,1st gear shaft sleeve and needle bearing
of 1st gear
(a) Take down the circlip of 5th gear with two screwdrivers
and one hammer.
(b) Dismantle the rear bearing of output shaft,1st gear assem-
bly and 1st gear sleeve with press machine.
(c) Remove the needle bearing of 1st gear.
3. Remove the synchronized ring
4. Take down the steel ball
Take out the steel ball with magnetic rod.
5. Take down the 1st and 2nd gear synchronizer assembly,
2nd gear assembly,and 2nd gear needle bearing.
(a) Remove the 1st and 2nd synchronizer assembly and 2nd
gear components.
(b) Take off the needle bearing of the 2nd gear.
6. Take down the meshing sleeve ,sliding block and spring.
Remove the three sliding blocks and two springs from the
synchronizer assembly with one screwdriver.

MT-22Transmission
Output Shaft Assembly(Disassembly of Output Shaft Assembly)
7. Take down the 3rd and 4th gear synchronizer assembly,
3rd gear and needle bearing .
(a) Remove the snap ring with plier for snap ring.
(b) Take down the 3rd and 4th gear synchronizer assembly and
3rd gear with press machine.
(c) Remove the needle bearing .
8. Take off the meshing sleeve ,sliding block and spring
from 3rd and 4th synchronizer.
Remove the three sliding blocks and spring from the meshing
sleeve with one screwdriver.

MT-23
Inspection of output shaft assembly
1. Check the axial clearance of every gear:
For the transmission made by Shang Chi:(0.15
0.33)
mm(1st,2nd,and 3rd gear position)
For the transmission made by Tang Chi:(0.1
0.25)mm
(1st gear position)(0.09
0.26)mm,(2nd and 3rd gear
position)
2. Measure the idle clearance of every gear.
Check the radial clearance of every gear with micrometer.
Standard clearance:
For the transmission made by Shang Chi:0.05mm
(1st,2nd,and 3rd gear position)
For the transmission made by Tang Chi:
(0.009
0.033)mm(2nd and 3rd gear position)
(0.009
0.032)mm(1st gear position)
Max clearance

For the transmission made by Shang Chi:0.05mm
For the transmission made by Tang Chi:0.033mm
(2nd,and 3rd gear position);0.032(1st gear position)
If the clearance value exceeds the limit above , the gear,
needle bearing or shaft should be changed.
PKInspection for output shaft and 1st gear shaft sleeve
(a) Measure the thickness of output shaft flange with callipers
Min thickness

For the transmission made by Shang Chi:4.75mm
For the transmission made by Tang Chi:4.65mm
(b) Measure the thickness of flange of 1st gear shaft sleeve
with callipers
Min thickness

For the transmission made by Shang Chi:3.87mm
For the transmission made by Tang Chi:3.795mm
(c) Measure the outside diameter of the journal of output shaft
with micrometer.
Min diameter:19.216mm
Gear of 2nd gear:37.984mm
Gear of 3rd gear:34.984mm Transmission
Output Shaft Assembly(Inspection of Output Shaft Assembly)
1st gear position 2nd gear position3rd gear position

MT-24
(d) Measure the outside diameter of the gear sleeve of 1st gear
with micrometer.
Min diameter:38.984mm.
(e) Measure the radial run out torlerance of the shaft with
micrometer.
Max radial run out torlerance

For the transmission made by Shang Chi:0.015mm
For the transmission made by Tang Chi:0.05mm
4. Check the synchronized ring
(a) Turn the ring ,and put it into to check the brake action.
(b) Measure the gap between the rear of the synchronized ring
and gear end.
Standard clearance:
For the transmission made by Shang Chi:(1.5
1.8)mm
For the transmission made by Tang Chi:(1.2
0.4)mm
Limit clearance:0.8mm
5. Measure the clearance between the gear shifting fork
and meshing sleeve
Check the clearance between the gear sleeve and gear shifting
fork with feeler gauge.
Max clearance

For the transmission made by Shang Chi: 0.54mm
For the transmission made by Tang Chi: 0.7mm Transmission
Output Shaft Assembly(Inspection of Output Shaft Assembly)

MT-25Transmission
Output Shaft Assembly(Assembly of Output Shaft Assembly)
Assembly of output shaft assembly
1. Assembly of synchronizer
(a) Insert the synchronizer hub and sliding block into the gear
sleeve.
(b) Install the spring expansion ring under the sliding block.
Note:The openings of spring expansion ring should be
staggered during installation .
2. Install the gear components of 3rd gear and synchronizer
of 3rd and 4th gear on the output shaft.
(a) Smear the gear oil on the shaft and the needle bearing of
3rd gear.
(b) Put the synchronized ring on the components of gear of 3rd
gear, and align the notch of synchronized ring and sliding
block.
(c) Install the needle bearing into gear components of 3rd gear.
(d) Assembly the gear components of 3rd gear and synchro-
nizer of 3rd and 4th gear with pressing machine.
3. Assembly of snap ring for shaft
To choose one snap ring which make the axial clearance be
Min, and install it on the shaft.
3/4 gear posititon
1/2gear posititon
front
front side

MT-26Transmission
Output Shaft Assembly(Assembly of Output Shaft Assembly)
Standard clearance:
For the transmission made by Shang Chi
(0.15
0.33)mm
For the transmission made by Tang Chi:
(0.09
0.33)mm
5. Assembly for the gear components of 2nd and
synchronizer of 1st and 2nd gear
(a) Smear the gear oil on the needle bearing of gear of 2nd
gear.
(b) Put the synchronized ring on the gear,and align the notch
and shift key.
(c) Install the needle bearing into the gear components of 2nd
gear.
(d) Assembly the gear components of 2nd gear and meshing
sleeve of synchronzer of 1st and 2nd gear with pressing
machine.
6. Check the axial clearance of gear components of 2nd
gear
Measure the axial clearance of gear components of 2nd gear
with feeler gauge.
Standard clearance:
For the transmission made by Shang Chi:(0.15
0.33)mm
For the transmission made by Tang Chi:(0.09
0.33)mm
7. Assembly the locking ball and gear components of 1st
gear
(a) Install the locking ball into the shaft.

MT-27Transmissio
Output Shaft Assembly(Assembly of Output Shaft Assembly)
SST
SST
(b) Smear the gear oil on the needle bearing of gear of 1st gear.
(c) Assembly the gear components of 1st gear,synchronized
ring,needle bearing and sleeve of gear of 1st gear.
(d) Install the assembly on the output shaft,and align the notch
of synchronized ring and sliding block .
(e) Turn the sleeve of 1st gear shaft to align the it with the
locking ball.
8. Installation for rear bearing of output shaft
Fix the bearing of output shaft to the output shaft with SST and
pressing machine, make the notch of locking ring of output
shaft rear bearing expose to the tail.
Remark: Hold the sleeve of gear of 1st gear and don
t let it fall
off.
9. Install the gear of 5th gear
Fix the gear of 5th gear with SST and pressing machine.
10. Assembly the snap ring of shaft
(a) To choose one snap ring which make the axial clearance
be Min, and install it on the shaft.
Max clearance
0.1mm

(b) Knock the snap ring of shaft of 5th gear tightly with
screwdriver and hammer.
11. Measure the axial clearance of gear of 1st gear
Measure the axial clearance of gear of 1st gear with feeler
gauge
Standard clearance:

For the transmission made by Shang Chi:(0.15
0.33)mm
For the transmission made by Tang Chi:(0.09
0.33)mm

MT-28Transmission
Output Shaft Assembly(Installation of Output Shaft Assembly)
12. Fix the drive gear of speedometer
(a) Install the locking ball and drive gear.
(b) Install the drive gear of tachometer with plier for shaft
shield ring

TF-2Transfer Box
Notice
Notice
Notice on transfer box disassembly and assembly
Notice shall be taken on the soft handling of the parts (coupling face in particular) during the process of
transfer box disassembly to avoid the collision; each parts shall put down in order so as to avoid of missing
or mistaking.
Notice shall, during assembly process, not only on the aforesaid items, but also on the following items:
1. Wash all parts and fittings before assembly (rubber element and washer excluded).
2. Oil seal, clip for shaft and spring pin of various kinds shall not be reused.
3. Lubricating oil is required to coat on the various friction surface and lubricant on lips of various oil seal.
4. Rolling body is not allowed to use for pressure transmission when mounting various bearings.
5. Lip-type oil seal is not allowed to mount slantwise.
6. The openness on the two sides of spring collar shall not be coupled face-to-face when assembling the
component elements of synchronizer. And
7. No parts is allowed the lubricant leakage and penetration when the transfer box locates at the working
location.