Zontes ZT310T-M, Руководство по обслуживанию

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2. Check the shock absorption performance
Pinch the front brake handle and press down
forcefully. After releasing it, it should be able to
compress smoothly and then return to normal. Repeat
the operation several times to check. If there is a block,
the shock absorber needs to be removed for
investigation. If there is a collision with the front wheel or
a high-speed bump, check whether the shock absorber
is deformed. Check the shock absorption performance
according to the maintenance schedule. It is necessary
to prevent the vehicle from turning over during
operation.
3. Remove the front shock absorption
Remove the front shock absorber according to the
steps of removing the front shock absorber in the "Front
Fork Assembly" of this manual.
4. Correct the front fork tube
If the front wheel of the vehicle passes a hurdle at a
high speed or after a collision, check whether the front
fork tube is deformed. Take the left shock absorption as
an example. Use the end face of the front axle of the
shock absorber bottom tube and the end face of the
front fender mounting point to fix the shock absorber; or
remove the front fork tube. Use a dial indicator to detect
the amount of deformation in the axial direction of the
front fork tube, and rotate the front fork tube to measure
different positions.
For slight deformation of less than 0.2mm (0.008 in),
the front fork tube can be supported by a V-shaped iron
block, and soft rubber, rubber, copper, etc. should be
placed on the contact surface to prevent the front fork
tube from being scratched. Use the press slowly and
slightly, straighten the pressure and small stroke several
times, and measure while straightening. The radial run
out after correction should be less than 0.05mm (0.002
in). If the original bending deformation part is out of
round after correction, it should be replaced. If the
deformation is too large, the shock absorption should be
replaced.
5. Troubleshooting
a. There is obvious impact noise when driving on
uneven roads or emergency braking. The following
items need to be checked:
Whether the spring of the shock absorber is broken or
the elasticity drops;
Whether the hydraulic oil is insufficient or enters the
air;
Whether there is too much hydraulic oil;
Whether the spring is axially bent and rubs against the
front fork tube.
b. The following items should be checked for excellent
shock absorption:
Whether there is too much hydraulic oil;
Whether the front fork tube is bent or deformed;
Has the spring been modified?
c. If the shock absorption is too soft, check the
following items:
Whether the hydraulic oil with low viscosity is
changed;
Whether the spring force drops;
Is there too little hydraulic oil?
Rear shock absorption
Caution:
●If the rear shock absorber has a lot of mud and sand, it
should be cleaned in time to prevent soft and big stones
from scratching the chromed parts and causing rust.
●Non -professionals should not disassemble the rear
shock absorber by themselves.
●It should be maintained according to the regular
maintenance table.