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N Y
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N Y
Y N
Y N
N Y
Diagnosis on clutch slipping
Diagnosis on transmission gear skip shift
Clutch slipping
Automatic shoe-type centrifugal & dry
clutch is slipping.
Check whether the
shoe-type friction plate is
excessively abraded.
Replace the whole set of
clutch shoe blocks
Clean and
remove oil stain
Check whether the contact
surface between shoe-type
friction plate and friction
disc is beyond 70%.
Check whether the contact surface between
shoe-type friction plate and friction disc is
excessively abraded.
修理或更换
Check whether the shoe-type friction plate
is spotted with oil stain.
Transmission gear
skip shift
Check whether the spring of positioning
wheels is ruptured or lacks elasticity.
Replacement
Disassemble crankcase and check whether the depth in
engaging for each gear is in accordance with requirements.
Proper depth in
engaging
Insufficient depth in
engaging
Check whether the engaging end of the cam claw on the engaged gear
face is abraded to be conical or largely circular, and whether the groove
on the corresponding gear face is abraded to be trumpet-shaped.
Check whether the shift fork is
excessively abraded or deformed.
Replace gear
Check whether the spline teeth of
main shaft/countershaft and the
spline groove in the clash gear is
excessively abraded.
Replace shift
fork
1. Check whether shift fork hole and shaft
are abraded.
2. Check whether the clearing between shift
fork pin/gear shift shaft and cam groove
is too big.
3. Check whether the installation of
transmission is correct.
Repair or replace clutch shoe
blocks.
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