Chery QQ6 (S21) / S12LHD. Manual — part 242

33

Installation hole of speed sensor

Oil limit plug (with tightening torque as 44±3Nm)

Figure 35

After the above steps, assembly and regulation to the transmission assembly are accomplished.

34

II. Tightening Torque Table for Fasteners

Position

Tightening torque (N.m)

Reverse gear rocker arm bracket bolt

25±2

Connecting bolts for clutch and

transmission housings

25±2

Reverse gear idler shaft screw

38±2.5

Connecting bolts for gearshift and

transmission housings

25±2

Gearshift shaft locating seat assembly

32±2.5

Reverse switch assembly

20±2

Fork shaft locating seats of gears

20±2

Bleeding\oil limit plug

44±3

Clutch release fork bolt

20±2

Clutch release arm bolt\nut

20±2

Selector Lever Bracket Bolt

25±2

Main decelerator driven gear bolt

130±5

Reverse gear lockup mechanism bolt

18±2

35

Chapter Four

General Failures and Troubleshooting

Failure

status

Possible reason

Troubleshooting

Damaged input or/and output shaft bearing(s)

Replace

the

bearing

Gear tooth faces damaged due to knocking, burr
or pit corrosion existing, or poor contact between
them.

Repair or replace
the gear

Incorrect gear shaft position and clearance

Check and adjust

Low oil level, insufficient lubrication

Fill oil

to

the

specified level

Excessive
or
abnormal
noise

Foreign matter(s) existing in the assembly

Check and remove

Excessively worn or damaged oil seal(s)

Replace

Uneven sealant smearing or damaged seal
gasket(s)

Replace the seal
gasket(s) or sealant

Failure to timely recondition junction surface(s)
damage due to knocking

Check and repair

Oil leakage

Damaged differential bearing

Replace

Improper clutch adjustment and incomplete
release.

Adjustment

Improper

gearshift

transmission

system

adjustment or movement obstruction occurring

Check and adjust

Difficult to
implement
gear shift

Synchronizer ring(s) fails to work

Replace

Worn synchronizer gear sleeve(s) or tooth cone
surface(s) of gear junction

Replace

related

components

Gear

jump

Improper

gearshift

transmission

system

adjustment

Check and adjust

Loose gearshift transmission system

Overhauling

No gear

Loose gearshift arm of transmission

Repair

Metal impurities contained in transmission oil

Replace

Insufficient

lubrication

or

unqualified

transmission oil

Replace

Abnormall
y damaged
bearing(s)

Using of unqualified bearing(s)

Replace

Service Manual for Chery

QQ6

(UMC EFI for 473F Engine)

After Sales Service Department of Chery

Automobile Sales Co., Ltd.