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ENGLISH
1.8 Analysis of derailleur gearshift
1.9 Analysis of slide and uncomplete disengagement of clutch
[1]Check whether the pressing bolt of clutch
spring is loose.
[2]Check whether the friction pieces of clutch are
worn or ablate.
[3]Check whether the elasticity of clutch spring is
poor.
[4]Check whether drive hub of clutch and the
connecting surface of pressing plate and friction
pieces are worn.
[5]Check whether the driven pieces of clutch are
distorted.
[6]Check whether the operation components of
clutch(separatory cam,separatory handspike and so on)
are worn.
Clean,lubricate or
replace it.
Readjust it.
Check whether the clutch adjuster is
adjusted to the best state.
Clutch slides and disengages
uncompletely.
Clutch slides and disengages
uncompletely.
W h o l l y r e p l a c e
cluth spring.
Check whether drive and
driven hub trough are
worn to be zigzag.
Check whether the elasticity of cluth
spring is well-proportioned.
Repair or replace
them.
No
Yes
No
Yes
No
Yes
No
Check whether the fork is
worn or distorted.
Check whether convex pawls of mesh
gear are worn to cone-shaped and
whether opposite groove of gear end is
worn to be bell-mouthed.
Disassemble crankcase and check
whether its mesh of gear is correct
according to the standard.
d e r a i l l e u r
gear shift
Check whether the
spline of main and
secondary axle and the
spline trough of slip
gear are worn.
Replace
fork.
Check whether the positioning spring
breaks off or its elasticity is insufficient.
Replace it.
The depth of gear
mesh is enough.
The depth of gear
mesh is not enough.
R e p l a c e
gear.
[1]Check whether fork hole and
fork axle are worn.
[2]Check whether the installation
of derailleur is correct.
Yes
No
No
Yes
No
Yes
No
Yes
