ZONGSHEN ZS250GY-3(EFI), Maintenance Manual

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The rear fork connects rear wheel with frame.It makes rear wheel rotate around a fixed point through rear shock absorber
to reduce the strike and shake of rear wheel.
Section 9 Rear Fork
1 The Structure and Working Principle of Rear Fork
Because rear fork gets big strike and shake,the
requirement on material and jointing is very high.It
is made through the method of jointing and so on.
It mainly consists of rear fork,dust seal,dustproof
seal cover and rear cover of bearing.
In order to keep rear fork rotating up and down
around the vehicle body,there is bearing shaft or
bearing installed at the connection of rear fork and
vehicle body.When rear fork rotates,it will make
rear wheel more flexibly and more stably.
2 Disassembly and Maintenance of Rear Fork
[1]Check whether rear fork is distorted or crakes because
of the outside force,whether the match clearance of each
component of rear fork becomes big,and whether the
rotating times of rear fork is too much.
Replace or maintain rear fork in time if it has the
problems above to ensure the comfort and safety of riding.
Maintenance of Rear Fork
3 The cause,trouble description and repair method of rear fork
Table4-9
component
description
cause
trouble description
of component
trouble description of
motorcycle
repair method
rear fork
Motorcycle runs to-
wards one side and
comfort,stability and
safety are influenced.
Rear wheel gets strike.
Motorcycle cannot run
normally.
Correct or replace
rear fork.
Rear fork breaks off.
Rear fork is distorted.
Motorcycle falls down
and rear fork breaks off.
Joint or replace rear
fork.
Joint rear fork.
The strike and shake to
rear wheel is too big.
The jointing of Rear
fork breaks off.
The comfort,stability
and safety of riding
decline.
The dust seal of bear-
ing cover of rear fork
is worn.
The road is bad and the
strike and shake to rear
wheel are too big.
The seal of bearing
cover or bearing of
rear fork is bad.
Replace dust seal of
rear fork bearing
cover.
Check rear fork CAUTION