Zontes ZT350T-D, Руководство по обслуживанию

Страница: 54 / 152

54 / 152
h. Press the blade pointed by the arrow
⑧
inward in the
direction of the arrow with your hand, and insert the pin
②
into the hole to secure the brake pad (1). Tighten the pin
shaft with a T25 Allen torx wrench
②
.
i. Attach the two circlips (1) back onto the pin shaft. The
buckle snaps and fits. When assembling the circlip, it should
be noted that the flange should face outward, and if the
circlip is deformed, the hammer can be corrected with
appropriate force.
j. Repeatedly pinch and release the brake handle to check
whether the brake returns to normal hydraulic resistance.
5.2 Replace the rear brake pads
a. Use a flat-blade screwdriver to remove the nut①.
Remove the pin shaft② with a 5# inner hexagon.
b. Use a 12# sleeve to remove the bolt③, turn the caliper
assembly clockwise around the bolt④, and remove the
brake pad. Note that the bolt④ does not need to be
disassembled.
c. Push the piston to the end in the direction of the arrow
with the help of a tool. If the resistance is high, you can refer
to the method of adding brake fluid to the front brake main
pump to remove the upper cover and then push. If the spring
on the caliper falls off, it needs to be reinstalled in the
direction shown in the figure.
d. Grasp the outer brake pad with your left hand and insert
the pin② with your right hand, being careful not to insert it
to the end. Install the inner brake pad in place, then insert
the pin to the end and use the 5# inner hexagonal lock
pin②. Be careful not to install it backwards, the grooved
side faces the brake disc; the black metal back plate faces the
caliper.
e. After adjusting the position of the brake pad, reinstall
the bolt③ and lock it with a 12# sleeve. Standard torque:
24N.m (2.4 kgf.m, 18 lbf.ft).
f. Use a flat-blade screwdriver to put back the nut① and
tighten it.
g. Repeatedly pinch and hold the brake handle to check
whether the brake returns to normal hydraulic resistance.
5.3 Abnormal sound of brake pads
The main reasons for the abnormal noise of the brake pads
are as follows:
a. The brake pad is worn to the limit. If it is a new brake
pad, check whether there is any foreign matter caught
between the brake disc and the brake pad. It can return to
normal after replacing new brake pads or cleaning foreign
objects.
b. Use non-original brake pads with too high hardness and
replace them with original ones.
c. The brake disc bolts are loose, and the tightening bolts
can be restored to normal.
d. Braking system failure, such as the caliper sliding shaft is
not reset due to rust; the brake pads and spring pads are not
installed correctly. Derust or re-assemble correctly.
e. The brake disc is out of tolerance, and it can be restored
to normal by replacing the new brake disc.
Outside
Inside