Great Wall Florid. Manual — part 31
GWFLORID Maintenance Manual
122
Front brake caliper assembly installation
1. Preparations
Make sure all parts are clean and free of foreign materials
before installation.When installing, apply an appropriate
amount of rubber grease to the guide pin and piston's
working surface, as well as the rectangular sealing ring and
the piston protective cover's working surface.
2. Install the rectangular sealing ring to the caliper.
(a) Screw the bleed screw into the caliper's vent holes.
Tightening torque: 10±2 N·m
(b) After applying an appropriate amount of rubber grease
on the rectangular sealing ring's working surface, install
them into the caliper's seal groove.
3. Install the piston with piston dust cover on the caliper.
(a) Place the piston dust cover on the piston.
(b) Stretch the piston dust cover, until its card holder
exposes the bottom of the piston. Use tools (for
example, about Ф2 mm of iron wire) to assist by
stuffing the card holder into the cylinder bore card
holder's groove.
Caution: The tools being used should not be sharp, as
to avoid tearing the dust cover.
(c) Then manually press the piston into the bottom of the
cylinder bore.
4. Install the guide pin and guide pin dust cover onto the
caliper frame.
(a) Install the guide pin dust cover onto the guide pin.
(b) Screw the guide pin into the caliper frame.
Caution: Do not damage the guide pin dust cover.
5. Install an inner and outer brake pad assembly and
inner and outer muffler plate subassembly.
6. Install the brake block yoke spring plate as well as the
inner and outer brake pad assembly and inner and
outer muffler plate subassembly on the caliper frame.
Guide pin
Guide pin dust cover
Caliper frame
Brake block yoke
spring plate
Air bleed
screw cap
Air bleed
screw
Caliper
Inner muffler plate
subassembly
Alarm plate
Inner brake pad assembly
Outer brake pad
assembly
Outer muffler plate subassembly
123
Brake System
7. Install the caliper assembly.
(a) Install the caliper assembly.
(b) Install and tighten the hexagon bolt for flange face.
Tightening torque: 30±5 N·m
8. Connect the brake line.
Connect the brake pipeline to the caliper.
Tightening torque: 40±4 N·m
9. Fill the brake reservoir up with brake fluid and exhaust
the air from the brake system.
10. Check for leaking brake fluid.
Caution: Bleed the air after replacing.
GWFLORID Maintenance Manual
124
Rear Brake
Components
4. Remove the rear brake drum.
Remark: If it is difficult to remove the rear brake drum,
follow the steps below:
Method one:
(a) Remove the rubber plug of the adjuster's observation
port, and insert a slotted screwdriver into the brake's
back plate assembly hole, and pry off the adjusting
paddle from the adjusting clearance wheel.
(b) Use another slotted screwdriver to toggle the adjusting
clearance wheel and loosen the brake's leading and
trailing shoe assembly's tension on the rear brake drum.
Disposable parts
Dust cover
Brake leading shoe assembly
Pressure spring
Pressure spring cap
Brake shoe tension spring
Rear brake drum
Lever
rotating
shaft
Retainer spring
Locking cap
Split ring
Brake lever
Brake trailing
shoe assembly
Brake back plate assembly
Pressure spring bar
Rubber plug of the
adjuster's observation port
Rubber plug of the
observation port gap
Washer
Bleed screw cap
Bleed screw
Piston
Ring cup
Piston spring
Wheel cylinder
Adjusting clearance shaft head
Adjusting clearance wheel
Adjusting
clearance
screw rod
Return spring
Adjusting
paddle
Pin
Side spring
Dust cover
Piston
Ring cup
Rubber grease
: Specified torque
N·m
7.8-11.8
High temperature resistant
grease
Rear brake removal
1. Inspecting the brake's friction plate thickness.
Remove the rubber plug of the observation port gap and
examine the friction plate thickness via the observation port.
If it's smaller than the minimum value, the brake's leading
and trailing shoe assemblies should be replaced.
Minimum thickness: 1.0 mm
2. Remove the rear wheel.
3. Release the brake fluid.
Caution: Be sure not to spill the brake fluid onto the
paint's surface. Otherwise it must be immediately
cleaned.
125
Brake System
Method two:
(a) Find two M6×40 (the thread is longer than 25 mm)
phillip screws, and screw them into the rear brake
drum's two threaded holes.
(b) Use a screwdriver to tighten the phillip screw, and push
out the rear brake drum.
Caution: Alternately tighten the two screws.
5. Remove the brake leading and trailing shoe assembly
and adjusting paddle.
(a) Use SST (Special Service Tools) to separate and remove
the pressure spring cap of the brake leading and trail-
ing shoe assembly, and remove the pressure spring and
pressure spring bar.
(b) Take out the brake leading and trailing shoe assembly
from the brake back plate assembly, take down the
retainer spring, and remove the cable connector.
Remark: When taking out the brake leading and trailing
shoe assembly from the brake back plate assembly, screw
the adjusting clearance wheel thread completely into the
adjusting clearance screw rod, decrease the return spring's
tension on the brake leading and trailing shoe assembly.
(c) Use needle nose pliers to remove the brake shoe tension
spring, and take down the adjusting paddle.
(d) Use pliers to remove the return spring from the brake
leading and trailing shoe assembly, and separate the
brake leading and trailing shoe assembly.
SST
M6×40
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