Great Wall service chassis and body Manual — part 8
MT-20
Transmission
Output Shaft Assembly (Components Figure)
Output shaft assembly
Components figure
synchronizer spring
expansion ring
snap ring
synchronizer
slide block
3th,4th gear synchronizer
meshing sleeve
3th gear needle bearing
synchronizer hub of 3rd
and 4th gear
toothed ring of
synchronizer
gear components of 3rd gear
steel ball
synchronizer sliding block
synchronizer meshing sleeve
of 1st and 2nd gear
gear components
of 1st gear
1st gear shaft sleeve
locking ring of output
shaft rear bearing
spring expansion ring
needle bearing of
2nd gear
gear components
of 2th gear
toothed ring of synchronizer
for 1st and 2nd gear
toothed ring of synchro-
nizer for 1st and 2nd gear
needle bearing of 1st gear
rear bearing of
output shaft
gear of 5th gear
odometer drive gear
drive gear snap ring of odometer
output shaft
snap ring of 5th gear
steel ball
MT-21
Transmission
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-22
Transmission
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.
PK Inspection 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 position
3rd gear position
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