Zontes ZT310T-M, Руководство по обслуживанию

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4. Malfunction
Normally rotate the handle, if it feels more laborious,
you need to investigate the following reasons:
a. Whether the steering mechanism is too tight, refer
to the previous steps to adjust the steering mechanism
to solve;
b. The steering mechanism bearing is rusty, the steel
bowl or steel ball is damaged, and it needs to be
disassembled and replaced;
c. The front tire pressure is insufficient and needs to
be charged to the standard tire pressure, which is
260kPa (2.7 kgf/cm2, 37.7 PSI) under normal
temperature conditions;
d. The column of the lower link plate is deformed and
needs to be removed and replaced.
Front fork
Caution:
●Every 10000km (621 mile), check whether the front
fork is leaking or deformed, and whether the shock
absorption and rebound are normal.
●Before riding each time, check whether there is
leakage in the front shock absorber and whether the
fasteners are loose to ensure driving safety.
● Bolt torque at the hollow shaft of the front wheel of the
shock-absorbing bottom cylinder: 20N.m (2.0 kgf.m, 15
lbf.ft).
●When replacing hydraulic oil, use kerosene or diesel to
thoroughly clean all parts. Use a graduated cylinder to
measure 220±2ml (7.4±0.07 US oz, 7.7±0.07 lmp oz,
13.4±0.1 cu-in) 46# hydraulic oil is poured in one
time ,Avoid mixing different hydraulic oils.
●After traveling on dusty or muddy roads, you should
clean up the foreign matter on the front fork tube
(exposed chrome-plated cylinder) in time to avoid
scratching the dust seal or oil seal and causing leakage;
wipe it clean with a soft cloth.
●Do not use a high -pressure water gun to directly flush
against the dust seal at close range.
●The vehicle should be parked in a ventilated and dry
environment without driving for a long time. A dark and
humid environment can easily cause the front fork tube
to rust and make other parts of the vehicle rust. Coastal
areas should have more frequent pre-maintenance
damping than inland areas. After wiping clean, spray a
small amount of anti-rust oil to prevent rust.
1. Check the appearance
a. After parking the vehicle firmly, let the front wheel
hang in the air, and turn the direction knob to observe
whether the front shock absorber is leaking; whether
there are scratches, pits, rust, etc. on the surface of the
front fork tube. Shallow scratches, small pits, and slight
rust can be smoothed with fine sandpaper of about 2000
mesh. Wipe clean the dust or foreign objects in the dust-
proof seal.
b. Check whether the bottom tube is painted off;
whether the installation points of the front fender, the
front wheel hollow shaft and the front brake caliper are
broken or cracked. Check if there is any leakage at the
bottom of the bottom cylinder.
c. If there is a large amount of hydraulic oil attached to
the front fork tube, wipe it clean and observe after riding.
If there is no oil stain or slight oil stain, it is the hydraulic
oil accumulated during the assembly of the dust seal,
and it can be judged that the oil seal is not leaking. If
there is a small amount of oil stains or sludge mixture,
remove the dust seal and wipe clean the front fork tube
and oil seal surface, first compress the front shock
absorber and then wipe clean and then press; repeat the
above operation 10 times. Observe whether there is still
on the front fork tube. If there is, the front shock
absorber leaking oil needs to be replaced with the dust
seal and oil seal. If not, it is a normal phenomenon that a
small amount of hydraulic oil has accumulated during
assembly.
d. Check whether there is any leakage at the bottom
of the bottom cylinder with the help of a mirror or mobile
phone lens. If there is a slight leakage, first check
whether the bolts are loose. The bolt torque here is 20
～
26N.m (2
～
2.7 kgf.m, 15
～
19 lbf). .ft). If there is still
leakage after tightening, the gasket should be replaced.