Maintenance Of Front And Rear Dampers - ZONGSHEN ZS125-80 Service Manual

Rear damper
4. Refer to Table 4-8 in respect of damage forms, fault phenomena and common
maintenance methods of front and rear dampers:
Component
Damage Form
Name
The front damper spring
loses its elastic force or
breaks off.
The front damper column
is bent and deformed.
The surface of operating
stroke of front damper
column is impacted or
scratched.
The chromium coated
s u r f a c e o f o p e r a t i n g
stroke of front damper
column is abraded and
the metal part is exposed.
Front damper
The front damper cylinder
i s h e a v i l y a b r a d e d o r
broken.
T h e p i s t o n r o d i s
excessively abraded or
damaged.
T h e p i s t o n r i n g i s
excessively abraded or
damaged.
The edge of oil seal is
excessively abraded or
damaged.
T h e f r o n t d a m p e r
o i l i s i n s u f f i c i e n t o r
deteriorated.
The rear damper spring
loses its elastic force or
breaks off.
The rear buffer leaks oil.
Rear damper
The piston rod on the
buffer is bent, deformed,
or broken.
T h e u p p e r a n d l o w e r
r u b b e r j a c k e t s a r e
abraded or aged.
Table 4-8: Maintenance of Front and Rear Dampers
Component Fault
Phenomenon
T h e f r o n t d a m p e r i s t o o
soft or makes an abnormal
sound.
T h e R H S a n d L H S f r o n t
damper columns are not in a
horizontal line.
The front damper leaks oil at
the oil seal.
The front damper leaks oil at
the oil seal.
The front damper leaks oil.
The front damper is too soft.
The front damper is too soft.
Oil leaks from the oil seal,
the front damper is too soft.
The front damper becomes
soft.
The rear damper is too soft.
The rear damper is too soft.
The rear damper is bent and
deformed.
The rear damper is bent or
makes a sound.
[2] Check if the RHS and LHS springs on the rear
damper are consistent in length. Check the springs
for any crack or damage on the surface. Replace
the rear damper if necessary.
Caution
When rubber parts are damaged, worn or aged, it
is necessary to replace new pieces.
Motorcycle Fault
Phenomenon
Riding comfort, stability and
security decrease.
The front motorcycle wheel
runs off tracking, affecting
the comfor t, stability and
security.
Riding comfort, stability and
security decrease.
The front motorcycle wheel
runs off tracking, affecting
the comfor t, stability and
security.
The front motorcycle wheel
runs off tracking, affecting
the comfor t, stability and
security.
Riding comfort, stability and
security decrease.
Riding comfort, stability and
security decrease.
Riding comfort, stability and
security decrease.
Riding comfort, stability and
security decrease.
The rear motorcycle wheel
runs off tracking, affecting
the comfor t, stability and
security.
Riding comfort, stability and
security decrease.
The rear motorcycle wheel
runs off tracking, affecting
the comfor t, stability and
security.
Riding comfort, stability and
security decrease.
Maintenance Method
Replace front damper or
front damper spring.
Rectify or replace the front
damper or front damper
column.
Replace front damper or
front damper column.
Replace front damper or
front damper column.
Replace front damper or
front damper cylinder.
Replace front damper or
piston rod.
Replace front damper or
piston ring.
Replace the oil seal of front
damper.
A d d o r r e p l a c e f r o n t
damper oil as required.
Replace the rear damper.
Replace the rear damper.
Replace the rear damper.
Replace the upper and
lower rubber jackets.
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