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Chery S11 / Chery QQ. Manual - part 25

Chery QQ Service Manual Chassis System

4、Brake pipe replace

1）、Braking line check

Check if brake hose is cracked,

damaged, leaked or projected. Check
2 times each year. Check if brake pipe
is cracked, damaged, leaked or
rusted.

2)、Brake pipe replace

Warning：Must use double wall

steel pipe when replacing brake pipe.
Don’t use other type pipe, otherwise
it will result malfunction for system.
Using correct fixing parts during
replacing. Lay the pipe on original
position. Bad install pipe will cause
interference to result malfunction
for system.
Attention: Use pipe wrench. Don’t
use single blade tool.

1) Replace front brake hose
Disassembly procedure
Warning：Don’t move vehicle before
the brake pedal is stable. The air in
the system will cause bad brake or
personal injure.
Attention：Don’t suspend parts on
hose. It will damage the hose.
1.  Loosen reservoir cover and fill
fluid  to  maximum  level.  Cover  the
reservoir with other cover.
2.  Support and lift vehicle.
3.  Remove  two  front  wheels.  See”
Remove and install wheels”.
4.  Clear dirt and dust on hose and
connector.
5. Use wrench to remove brake pipe

from hose.

6. Remove hose install bracket fixed
card ,
Don’t bend brake pipe or bracket
7. From bracket remove hose
8. From caliper 2 remove the below
unit

Brake hose screw 4
Hose 5
Two gaskets 3

Steps of installation
1. Install caliper 2

Brake hose screw 4
Hose 5
Two new gaskets 3

2.Use brake fluid to lubricate screw
thread
Fixture
Fixture brake hose cram screw to
23-27N.m
3. Install brake hose on support
without any wrest for hose.

Chery QQ Service Manual Chassis System

4. Fix brake pipe onto brake hose with
fingers.
5. Install brake hose on support
6.

Use wrench to open hose

connector.

Don’t bend support or pipe

Fixture
Fix brake pipe connector nuts to
16N.m.
7. Refer “ Remove and install
wheel” before installing wheel.
8. Make sure no any touch for hose and
suspension system. Check working
condition on right and left hoses. If
there is any touch for hose and
suspension system, remove hose and
correct it.

9. Lower vehicle.
10. Drain out air in brake system.
Please refer to “ Draining out air
in hydraulic system”.

2) Rear wheel brake replace
Disassembly procedure
Warning: Don’t move vehicle before
the brake pedal stroke is stable. The
air in brake system will result
faulty for brake or hurt people.
Attention：Any brake hose cannot be
bent to prevent no-braking.
1. Support vehicle and lift.
2. Clear the dusts on the hose and
pipe connector.
3. Use wrench to remove brake pipe
from hose. Don’t bend pipe or
support.
4. Remove clamp from brake hose.
5. Remove the hose from support.

Steps of installation

Fixture

Chery QQ Service Manual Chassis System

1． Install brake hose on support
with any wrest for hose.
2． Fix brake pipe onto brake hose .
3． Install fixed card onto the hose
connector.
4．

Use wrench to open hose

connector.

Don’t bend support or pipe.

Fixture
Fix brake pipe connector nuts to
16N.m.
5. Lower vehicle.
6. Drain out air in brake system.
Please refer to “ Draining out air
in hydraulic system”.

5、Hydraulic braking system

exhaust

Warning：Don’t move vehicle before
the pedal is not stable. The air in
the system will cause brake faulty or
personal hurt.
Warning：Only use clean OPEL DOT 4

fluid in sealed container. Don’t use
polluted fluid, otherwise it will
cause damage to parts, bad brake or
personal hurt.
Warning：Don’t fill fluid to much.
It will flow out to engine exhaust
parts to result fire.
HINT: If air enters into brake system
during repairing, carry out complete
draining out air process.
HINT: Avoid spraying the fluid on
paint surface, wires and connectors.
Rinse the parts if any fluid sprayed
on vehicle.
HINT: Strictly observe the process of
draining air. When air enters into
hydraulic  system,  four  hydraulic
systems must be drained. If the hose
or  brake  opens  on  one  wheel,  only
drain out air for this wheel. If the
hose opens in any connector between
master cylinder and the brake, only
drain out air related system.

1) Pressure exhaust
HINT: For vehicle with ABS, apply ABS
automatic draining out air process.
Check if ABS is normal before
draining out.
1.  Check the level of fluid and fill
fluid to correct level if necessary.
2. Remove reservoir cover.
3. Use connector 1 to connect
draining unit with the reservoir.
4. Apply pressure on system.
5. Wait for 5 minutes. Then check
whole system to make sure no any
leakage. If any leakage happens,
service at once.
Attention：Clear the fluid flown out.
Fixture

6.  Slowly  open  one  of  brake  pipe

Chery QQ Service Manual Chassis System

connector on ABS regulator to flow
out the fluid.
7. When no bubbles appear in the fluid,
close brake pipe connector on ABS
regulator.
Fixture
Screw brake pipe connector on ABS
regulator to 8N.m.
8. For other connector, repeat step
6 and step 7.
9. Support and lift vehicle.

10． Remove right rear brake exhaust
valve cover. Put transparent hose to
the valve.
11. Put one end of hose into the
container with clear brake fluid.
12. Slowly open the valve to flow out
fluid.
13. Close the valve when no bubbles
appear.
14. Fix the valve to ６N.m.
15. Remove the transparent hose from
the valve.
16. Repeat above steps for left rear
brake, right front clamp and left
front clamp until no any bubbles
appear.

Points of attention:
Make sure no any leaks for the valve.
17. Remove the transparent plastic
hose from valve.
18. Lower vehicle.
19. Note the pressure remaining in
reservoir when remove exhaust units.
20. Check and fill fluid to suitable
level in reservoir.
21. Install reservoir cover.
22. Start engine and run at least 10
s.
23. Turn off ignition switch.

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