2006 GREAT WALL SAFE brake pads

BR-14
Brake pad change
Remark: Check the thickness of the friction material of brake
pad through the observation hole on caliper body after the
vehicle covers thirty thousand; if the thickness fails to fall
within the specified range, change is required. (If the brake is
used often, the thickness of friction materials of brake
pad is required to check whether it is within the specified
range after the vehicle covers more than ten thousand,
if not, change it.
1. Tear down the front wheel;
2. Check the thickness of friction material of brake pad:
Check the thickness of friction material of brake pad through
the observation hole on caliper body, if it fails to be within the
specified range, change it.
Min thickness: 2.0mm
3. Raise the wheel-brake cylinder:
(a) Tear down the short bolts of sliding sleeve;
(b) Uplift the wheel brake pump and hang it with rope to
protect the brake oil pipe.
Remark: Do not loosen the brake oil pipe and the bleeding plug.
4. Tear down the following parts:
(a) Two braking pads;
(b) Two silent pad clusters;
(c) Four braking pad lock plates.
Braking System
Front Brake (Dr)

BR-15
5. Brake disc measurement
(See page BR-17)
6. Measure the radial run-out of the brake disc;
(See BR-18)
7. Mount the lock plate of brake pad.
8. Mount the new brake pad.
(a) Mount the silent pad cluster on brake pads of both the
inner and outer sides;
Remark: Pollution of oil stain or coat is not allowed on the
work faces of brake pad or brake disc.
(b) Draw out a little brake liquid from the liquid container to
prevent the brake liquid overflowing from the liquid
container;
(c) Press in the piston with the hammer lever or similar tool.
9. Mount the wheel-brake cylinder;
Mount and screw up the hex bolts (the hex bolts shall be coated
with the thread locking sealing agents.
Fastening torque
(38-50)N
m
Remark: only one brake pad can be changed in one time so as
to prevent the piston of other wheel being shot out.
Braking System
Front Brake (Dr)

BR-20
Front Brake
Element figure
spring gasket12
123
separation padssilent pad
brake padbrake caliper
brake pad snapping ring
guide pin lock spring
sealing ringguide pin
dust cover steel gripping hoop
piston dust cover piston brake disc
: fastening torqueN
M
Change of Brake pad
Remark: In case there is a continuous screaming from the front
wheel when braking the vehicle during driving, check the
alarm pad for friction limit for brake pad. If there is friction
trace on the alarm pad with the brake disc, change the brake pad
1. Disassemble the front wheel;
2. Check the thickness of friction material of brake pad.
Check the thickness of friction material of brake pad, if it fails
to be within the specified range, change the brake pad.
Min thickness
2.0mm SFBraking System
Front Brake(SF)

BR-21
3. Disassemble the following parts:
(a) Guide pin snapping spring;
(b) Two guide pins;
(c) Brake pad snapping ring
(d) Two brake pads;
(e) Two silent pads; and
(f) Two separation pads
4. Measure the thickness of brake disc.
(See BR-24)
5. Measure the radial swinging of the brake disc.
(see page BR-24)
6. Mount on the new brake pad;
(a) Draw out a little brake liquid from the liquid container.
(b) Press in the piston with the hammer lever and similar tool.
Remark: Only one brake pad of the same wheel can be changed
in one time so as to prevent the piston on the other face ejecting
out.
(c) Mount two silent pads and two separation pads on the
new brake pad.
Remark: coat the brake oil for disc on the inner silent
pads.
(d) Mount the brake pad with the worn limit alarm pad on the
inner side, while the other brake pad on the outer side.
Note: Pollution of oil stain or coat is not allowed on the
work faces of brake pad or brake disc.
7. Mount the brake pad snapping spring;
Brake pad snapping spring shall be mounted at the lower
position;
Braking System
Front Brake(SF)

BR-22
8. Mount the two guide pins;
9. Mount the guide pin snapping spring
Disassembly of Wheel brake Pump
1. Disassemble the front wheel;í
2. Disassemble the brake pipeline;
Tear down the brake pipeline with a container containing the
brake liquid.
3. Disassemble the wheel-brake cylinder.
Tear down the two hex bolts and the wheel-brake cylinder.
4. Disassemble the following parts:
(a) Guide pin snapping spring;
(b) Two guide pins;í
(c) Brake pad snapping spring;
(d) Two brake pads;
(e) Two silent pads and
(f) Two separation pads.
Braking System
Front Brake(SF)

BR-25
3. Encase the piston in the caliper body.
4. Encase the piston dust cover, dust cover steel-
gripping hoop in the caliper body.
Mount of Brake Calipers
1. Mount the brake caliper and screw up the two
mounting bolts.
Fastening torque
123N
m
2. Mount the brake pads;
3. Connecting the brake pipeline;
Use the open spanner to connect the pipeline.
Fastening torque
(21
1)N
m
4. Observe the height of brake liquid level and, if
necessary, add in the brake liquid and exhaust the air
in braking system.
Notice: avoid the brake liquid of spraying on the brake disc
when exhausting the air.
5. Check to see whether there is leakage of brake liquid. Braking System
Front Brake(SF)

BR-35
4. Tear down the front brake shoe:
(a)Tear down the tension spring from the front brake shoe;
(b) Tear down the pressure spring cap of brake shoe, the
pressure spring and claming pin.
(c) Tear down the lower tension spring from the front shoe
and the shoe pads.
(d) Tear down the lower tension spring from the rear shoe.
5. Tear down the rear brake shoe:
(a) Tear down the shoe pressure spring cap, pressure spring
and claming pin.
(b) Tear down the upper tension spring from the shoe pad.
(c) Tear down the rear brake shoe and the clearance adjuster.
(d) Tear down the parking brake bracing wire from the brake
shoe.
6. Tear down the clearance adjuster from the rear brake shoe:
(a) Tear down the clearance-adjusting spring.
(b) Tear down the clearance adjuster.
Braking System
Rear Brake (SF)

BR-38
Assembly of Rear Brake
left wheel
right wheelforward forward
1. Assemble the wheel-brake cylinder:
(a) Coat moderate lithium soap base glycol grease on the
piston cup.
(b) Assembly the wheel-brake cylinder

Mount the two piston cups on two pistons

Mount the two dust cover on two pistons.

Encase the spring and the two pistons in the wheel
cylinder body.
Remark: assembly correctly according to the direction shown
in the drawing.
2. Mount the wheel-brake cylinder:
(a) Mount the wheel-brake cylinder on the rear bottom plate
with two bolts.
Fastening torque
(6.5
10)N

m
(b) Connect the brake pipeline on the wheel-brake cylinder.
Fastening torque
(18+2)N

m
3. Coat the lithium base grease on the following parts:
(a) Hex convex platform where the bottom plate contacts
with the brake shoe.
(b) Two ends of support brocks
(c) Contact position where the piston and the shoe rib.
Remark: Do not pollute the friction pads. Braking System
Rear Brake (SF)
remark: assemble the component elements in the direction shown in the drawing;