Chery QQ6 (S21) / S12LHD. Manual — part 240
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rotate freely. Set friction ball of gear, fender and clamp in from upside of input shaft, and then perform axial
orientation for the fourth gear driving gear. Set fifth gear needle bearing applied with the gear oil of the same
designation as that used inside the transmission assembly onto the input shaft from upside of the input shaft.
Set fifth gear driving gear assembly in from upside of input shaft with the end with synchronizer cone of the
gear assembly up, and then make sure that the gear assembly can rotate freely. Set a 3/4/5 gears synchronizer
ring in from upside of input shaft with conical surface of the synchronizer ring applied with the gear oil of
the same designation as that used inside the transmission assembly, and then check and make sure that the
synchronizer ring should envelop loosely on synchronizer cone of the fifth gear driving gear assembly and
can rotate relative to the synchronizer cone. Press fifth gear synchronizer assembly onto the input shaft with
the end surface of gear hub with oil groove down, turn the synchronizer ring to make its guide block
completely enter the groove corresponding to the gear hub, and then make sure that the synchronizer ring is
not locked. Fit rear snap ring of input shaft; when fitting, try to use the thicker snap ring, if really unsuitable,
select the snap ring of next thinner level, and then check if the snap ring has really enter the groove with the
clearance between the snap ring and the groove not exceeding 0.07mm. Simultaneously press front and rear
bearings of input shaft onto the input shaft with the side of front bearing of input shaft having word down
and the side of rear bearing of input shaft having word up, and then check and make sure that the outer rings
of the bearings can rotate freely. Refer to Figure 26.
Note: There are two friction balls between the bearing baffles (2 sheets). Be careful to install them in
full.
Input shaft 3/4 gears needle bearing Third gear driving gear assembly 3/4/5 gears synchronizer ring Rear bearing of input shaft
Front bearing of input shaft
Front clip spring
3/4 gears synchronizer assembly
5 gear synchronizer assembly
5 gear needle bearing
5 gear driving gear assembly
Gear baffle
Clip-gear baffle
Rear clip spring
4 gear driving gear assembly
26
Gear fender Friction ball
Figure26
7. Regulation and assembly of output shaft assembly
With the end of output shaft with driving gear of main decelerator down, set first gear needle bearing in
onto output shaft from upside of the output shaft; before installation of the needle bearing, apply the gear oil
of the same designation as that used inside the transmission assembly on it. Set first gear driven gear
assembly in from upside of output shaft with the end with synchronizer cone of the gear assembly up, and
then check if the gear assembly can rotate freely. Set a 1/2 gears synchronizer ring assembly in from upside
of output shaft and the three finger jaws of balking ring of the synchronizer ring should completely enter the
three corresponding grooves on the first gear driven gear assembly; before installation of the synchronizer
ring assembly, apply the gear oil of the same designation as that used inside the transmission assembly on
three conical surfaces of the synchronizer ring; check and make sure that the synchronizer ring assembly
envelops loosely on the synchronizer cone of the first gear driving and driven gears assembly and can turn a
certain angle relative to the synchronizer cone. Press 1/2 gears synchronizer assembly onto the input shaft
with the end of external gear of 1/2 gears hub sleeve with section down, turn the synchronizer ring to make
its guide block completely enter the groove corresponding to the gear hub, and then make sure that the
synchronizer ring is not locked. Fit front snap ring of output shaft; when fitting, try to use the thicker snap
ring, if really unsuitable, select the snap ring of next thinner level, and then check if the snap ring has really
enter the groove with the clearance between the snap ring and the groove not exceeding 0.05mm. Set a 1/2
gears synchronizer ring assembly in from upside of output shaft; before installation of the synchronizer ring
assembly, apply the gear oil of the same designation as that used inside the transmission assembly on three
conical surfaces of the synchronizer ring. Set a second gear needle bearing onto output shaft from upside of
Front snap ring
3/4 gears synchronizer assembly
Clamp-gear fender
27
the output shaft; before installation of the needle bearing, apply the gear oil of the same designation as that
used inside the transmission assembly on it. Set second gear driven gear assembly in from upside of output
shaft with the end with synchronizer cone of the gear assembly down (the three grooves on the gear
assembly should completely envelop the three corresponding finger jaws on 1/2 gears synchronizer cone),
and then check and make sure that the gear assembly can rotate freely. Set the third gear driven gear in from
upside of output shaft with the end with boss of the gear up, and then check and make sure that the 1/2 gears
synchronizer ring assembly is not locked. Set 3/4 gears driven gear bush and then fourth gear driven gear in
from upside of output shaft, with the end with boss of the gear down. Set fifth gear driven gear in from
upside of output shaft with the end with boss of the gear up. When fitting, try to use the thicker snap ring, if
really unsuitable, select the snap ring of next thinner level, and then check if the snap ring has really enter
the groove with the clearance between the snap ring and the groove not exceeding 0.05mm. Simultaneously
press inner rings of front and rear bearings of output onto the output shaft. See Figure 27.
1/2 gears synchronizer ring assembly First gear driven gear assembly 1/2 gears needle bearing Output shaft Front bearing of output shaft
Rear bearing of output shaft rear snap ring Fifth gear driven gear Fourth gear driven gear Gear spacer Third gear driven gear
Figure 27
Front clip ring
2nd gear driven gear assembly
Needle bearing for 1/2 gears
1/2 gears synchronizer assembly
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8. Assembly and regulation of transmission assembly
Place the clutch as shown in Figure 28 first, and then assemble the differential assembly to its
designated position.
Clutch housing assembly Differential assembly
Assemble gearshift fork assembly, input shaft assembly and output shaft assembly together as shown in
Figure 29, and then install them together onto clutch housing assembly. When assembling, wrap front end
spline of input shaft with polyvinyl chloride adhesive tape to prevent damage to oil seal. After installation,
turn each gear to ensure favorable engagement.
Gearshift fork assembly Input shaft assembly Output shaft assembly
Figure 29
Figure 28
Use tape to wrap the spline
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