TAYO ZONTES 310T-M 2022, Maintenance Manual

Page: 163 / 188

163 / 188
Inspection and maintenance of front wheel assembly ：
Caution:
●This inspection should be completed by a qualified
maintenance organization.
●Do not press the brake handle after the front wheel is
disassembled
●Be careful not to damage the ABS coil when disassembling.
●The vehicle must be parked on a flat and stable ground or a
lifting platform
●It is forbid den to use a high-pressure water gun to flush
against the oil seal at close range.
1. Disc brake
1.1 The service life of the disc brake disc
Under normal circumstances, the replacement mileage of
the brake disc is about 40,000 kilometers. The replacement
mileage is not absolute. It needs to be determined according
to the owner's travel habits (whether you like sudden
braking), road conditions, maintenance intervals and other
factors, but if the following three conditions are reached If
any of them, they must be replaced.
a. Use a vernier caliper to measure the thickness of the
disc brake disc less than 4.mm (0.16 in).
b. Hang the front wheel in the air, observe from the front
that the disc brake disc swings when the front wheel rotates,
and the disc brake disc deformation is detected.
c. Touch the surface of the disc brake disc with your hands
to detect obvious pits, visually inspect for deep scratches and
grooves.
1.2 Disc brake Replacement method
a. Refer to "Replace the front wheel" Remove the front
wheel assembly.
b. Use 6# hex socket to remove 5 M8×25 bolts and remove
the damaged disc brake disc.
c. After reinstalling the new disc brake disc, use 5# inner
hexagon to tighten 5 M8×25 bolts. Torque: 25N.m (2.5 kgf.m,
18 lbf. ft). The M125 front disc brake disc is a floating disc,
and the ABS gear ring is connected to the disc brake disc
body by rivets. If you only need to replace the disc brake disc,
you need to use a grinding pen to polish off the rivet bulge
and then remove the gear ring first. The rivets must be made
of stainless steel, not aluminum.
d. Reinstall the front wheel assembly.
2. Front wheel oil seals and bearings
2.1 Service life of front wheel oil seals and
bearings
Under normal circumstances, the bearings and oil seals in
the front axles need to be inspected within 50,000
kilometers, but the bearings and oil seals in the front axles
need to be inspected according to the actual conditions of
the vehicle’s driving conditions and the size of the load. Into
the oil seal and bearing, the fine dust in the water will
accelerate the wear between the bearing and the oil seal. At
the same time, the mixed friction of water and grease
becomes an emulsion and loses the original lubricating effect.
This also shortens the service life between the oil seal and
the bearing. When the following conditions occur, the front
wheel oil seals and bearings should be checked in advance
a. Abnormal front wheel noise when riding.
b. When the direction bar shakes left and right when
riding.
2.2 Replacement method of front wheel oil seal
and bearing
a. Remove the front wheel assembly by referring to
"Replace the front wheel".
b. Use a flat-headed batch to lift out the oil seals on the
left and right sides of the front wheel, check whether the oil
seals are damaged or deformed, check whether the outer
ring of the bearing fits tightly with the rim, and if there is no
abnormality, turn the inner ring of the bearing by hand to
check whether the bearing rotates smoothly and if there is a
jam. If it is astringent or abnormal sound, the front wheel
bearing and oil seal need to be replaced.
c. The replacement of the front wheel oil seals and
bearings must be completed by a professional maintenance
organization.
d. If there is no problem in the inspection, apply an
appropriate amount of lubricating grease on the front wheel
bearing, and then press-fit the oil seal to the original position
with a suitable size iron rod and rubber hammer.
e. Reinstall the front wheel assembly.
3. Front wheel rims and tires
3.1 The service life of the front wheel rim and tire
Generally speaking, rims do not have the limit of service
life and kilometers, but if the following situations occur, the
rims must be replaced.
a. The rim is deformed or warped.
b. Cracks or breaks in the rim
Under normal conditions, the front tires can be used for
about 20,000 kilometers. Normal conditions mean that the
road conditions are not bad and there is no tyre puncture.
Because the tires are made of rubber, there will be aging.
Generally, the tires need to be replaced in about 4 years. If
you don't change it, you need to check frequently to check
the tire aging and whether there are cracks in the tire. If the
following conditions occur, the tires must be replaced.
a. The tire has been repaired many times.