Chery QQ - Page 246

Chery QQ Service Manual Chassis System
4) Left brake replace
Disassembly procedure
1. Fill fluid to MAX level.
2. Lift and support vehicle.
3. Mark the position of wheel to the
drum.
4. Remove tire and wheel.
5. Remove brake drum.
6. Remove park brake cable.
7. Remove brake cable
8. Remove brake pipe on rear shaft.
9. Remove sensor on rear ABS.
10.Remove 4 bolts on rear brake.
11.Remove rear brake.
Steps of installation
1. Clear and check wheel shaft
surface.
2. Fix rear brake plate and rear brake
with new bolts.
Screw bolts with torque 50N.m.
Caution: Don’t use old bolts.
3. Install park brake cable
4. Mount brake pipe bolts on rear brake
wheel cylinder
Fixture
Screw brake pipe bolts to 6 N.m.
5. Install rear vibration absorber
bolts.
Fixture
Screw bolts to 65Nm.
6. Install brake drum.
7. Install rear sensor of ABS on rear
brake.
Install and adjust sensor
Install sensor and screw bolts with
hands.
Push the sensor until cannot move.
Screw bolts.
Turn clockwise 30 degree to adjust the
lever.
Fixture
Screw bolts to 6Nm.
8. Fill clean fluid to suitable level
9.Drain out air in the brake if removing
connector on inlet
10. Step down the pedal with 220N after
draining out air if necessary.
11. Check if any leak of fluid in brake
system.
12. Install tire and wheel.
13. Lower vehicle
5)Brake wheel cylinder overhaul
Disassembly procedure
1. Remove brake cylinder.
2. Remove cylinder hood.
3. Remove cylinder piston. Blow
compressed air to inlet of cylinder,
the piston will putout from hood.
4. Clear all parts with alcohol.
Don’t use other liquid.
5. Check if cylinder and piston is cut,
scratch, corrosion or wear.
6. Replace cylinder shell or piston if
any above condition appears.
7. Remove piston seal ring from
cylinder groove.
Attention: Don’t use metal tool to
remove seal ring, otherwise it will
damage cylinder or groove.
8. Check if scratch, nick, corrosion or
wear appear on cylinder or groove.
9. Use a fine sand paper to remove
slight corrosion.
10. If the corrosion cannot be removed,
replace wheel cylinder.
11. Check if cut, scratch or aging
appear on protection cover.
12. Replace damaged cover.
13. Check if cut and scratch appear on
groove. f the groove is damaged,
replace wheel cylinder.
14. Remove valve cover and valve from
cylinder.
15. Clean all parts with alcohol.
16. Dry all parts with clean compressed
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Chery Automobile Co., Ltd