Chery B11. Manual — part 87

10. Use an elongated piece to secure the brake piston,

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slightly press it against the dust seal and blow
the dust seal with compressed air (max. pressure 3bar).
Hitch the snap ring onto the bake piston.
Fixing instructions:
Soak the dust seal and brake piston with brake fluid so that
the dust seal may pass easily.



2.5 Brake components
Inspection and maintenance

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1. Measure the thickness of brake pads.
Measure the thickness of brake pads with a ruler.
Nominal thickness: (17.1)
Minimum thickness: (5.5)
Any brake pads whose thickness is the same as or less than the
minimum thickness or which are severely worn out and
uneven shall be replaced.


2. Measure brake disc thickness

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Any brake pads whose thickness is the same as or less than the
minimum thickness shall be replaced. Any brake disc which
has scratches or abrasion on the surface shall be ground on a
machine tool or replaced.

图中文字：
维修专用工具：Special maintenance tool

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3. Measure the lateral runout of brake disc
(1) Secure the brake disc with 2 wheel hub nuts
Tips: hold the brake disc with a special clamp during measurement.
Torque: (110N.m)



(2) Measure the lateral runout of brake disc 10mm off the outer
rim of the brake disc with a dial indicator. If the lateral runout value

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is bigger or the same as the maximum lateral runout value, then
the axial clearance of the bearing and the lateral runout of the
axle shall be checked. If the axial clearance and the lateral
runout of the axle are normal, then brake disc may be modified
for its lateral runout.

Section Three Dismantling of Brake Master Cylinder

3.1 Dismantle brake master cylinder
1. Detach the connector of oil level alarm lamp switch;
2. Suck out the brake fluid
Caution: do not spill any brake fluid onto the painted
surface and erode the paint; any spilled brake fluid on
painted surfaces shall be wiped away immediately.
3. Release brake pipe
Dismantle the two brake pipes off the brake pump

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with a special tool.
(1) Front axle circuit
(2) Rear axle circuit


4. Dismantle brake master cylinder
(1) Release the two hexagonal nuts;
(2) Pull the brake master cylinder out of the brake
assist system and take down the seal.

(1)

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3.2 Fix brake pump
1. Before fixing the brake pump, adjust
the length of brake booster push rod.
2. Fix brake pump
Without traction control system
Fix the brake pump, hose clamping hoop
and one new washer onto the brake
booster with two nuts.
Torque: 13N.m
3. Connect the brake pipe
(1) Connect the two brake pipes to the
brake pump;

(2) Tighten each nut with special
maintenance tools.
Special maintenance tools: 09751-36011
Torque: 15N.m
4. Join the connector of oil level alarm
lamp switch
5. Fill brake fluid into the fluid tank and
then bleed through the braking system.
6. With traction control system
Bleed through the traction control system
7. Check if the brake fluid leaks
8. Check and adjust the brake pedal

Section Four Brake Booster

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4.1 Dismantle brake pedal
1. Dismantle the switch of brake lamp
(1) Take out the plug of brake lamp




(2) Screw the brake lamp switch off the brake pedal






2. Dismantle the joint pin of booster pump and brake pedal

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(1) Take down lockpin of the joint pin

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(2) Take it out from the other direction





3. Release the set bolts of brake pedal bracket

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4. Release the set bolts (1) of accelerator pedal bracket

(1)

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5. Release the pulling wire of accelerator pedal







6. Dismantle the brake pedal bracket

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(1)

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068

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4.2 Unfix, fix and replace the vacuum booster
1. Unfix brake pump (1)
2. Unfix the clapboard under the left meter panel
(See the section on meter panel dismantling)






3. Dismantle the brake pedal bracket







4. Dismantle the set bolts of vacuum booster
5. Dismantle the vacuum tube
6. Carefully pull the brake booster (1) from the front
and rotate it out in motor direction.
Tips: do not apply too much force during dismantling
and fixing of brake booster which will be damaged
otherwise. Take out the brake booster vertically upward
out of the motor cover.