wheel GEELY MK 2008 Repair Manual
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Power Steering System
-Power Steering Gear4-78 (6) Connect the tie rod ball stud pin with the steering knuckle, make sure that the mating surface of the tie rod
ball stud pin and the steering knuckle is clean, tighten the slot nut, torque: 27~39N.m. Install the cotter pin,
make sure of the correct installation
(7) Add appropriate amount of specified power steering fluid, bleed the power steering system
(8) Check the power steering pipeline system for leakage
(9) Check the front wheel alignment and front wheel left and right limit turn angle, adjust the toe in if
necessary and tighten the tie rod lock nut
(10) Check the position of the steering wheel. It is required that the steering wheel spokes are basically
symmetrical when the vehicle is driven straight ahead, reassemble the steering wheel if necessary
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Brake System -Brake System4-79Chapter 9 Brake SystemSection 1 Brake SystemI. Precaution 1. It's very important to keep the parts and area clean when repairing the brake system.
2. Care must be taken to replace each part properly as it could affect the performance of the brake system and
result in a driving hazard.
3. Do not let brake fluid remain on a painted surface when repairing any parts. Wash it off immediately.
4. If any work is done on the brake system or air in the brake pipelines is suspected, bleed the system of air.
5. Check the brake system for leakage after repairing the brake system.
6. Use specified brake fluid. Do not mix with other brand of brake fluid.II. Symptom table Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.Symptom
Low brake pedal or recoil
Brake StagnationSuspected Area
1 Brake system (fluid leaks)
2 Brake system (air in)
3 Piston Cup in Sub-pump (worn or damaged)
4 Rear brake shoe clearance (out of adjustment)
5 Master cylinder (faulty)
6 Booster push rod (out of adjustment)
7 Brake shoe or lining (oily)
8 Disc/Drum scratched
1. Brake pedal free stroke is too small
2. Parking brake lever stroke (out of adjustment)
3. Parking brake cable (sticking)
4. Rear brake shoe clearance (out of adjustment)
5. Brake pad or lining (cracked or distorted)
6. Wheel cylinder piston (stuck or frozen)
7. Return spring (faulty)
8. Vacuum booster (faulty)
9. Brake master cylinder (faulty)
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Brake System -Brake System4-80Symptom
Brake Deviation
Noise from brakeSuspected Area
1. Wheel cylinder piston (stuck)
2. Brake shoe lining (oily)
3. Disc (scratched)
4. Brake shoes or lining (cracked or distorted)
5. Wheel hub bearing (worn or damaged)
6. Tire pressure (not as specified)
1. Brake shoe lining (damaged)
2. Installation bolt (loose)
3. Disc (scratched)
4. Brake shoe (bad in quality)
5. Brake shoes lining (oily)
6. Sound isolating shim damaged
7. Hold spring of brake shoe (damage)
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Bleeding1. Fill brake reservoir with brake fluid
Brake fluid: HZY4 complying with GB12981Section 2 Brake FluidBrake System -Brake Fluid4-812. Bleed brake pipeline system
(1) Connect the vinyl pipe to the wheel cylinder bleeder plug port
(2) Depress the brake pedal several times, and then loosen the bleeder plug with the pedal held down.
(3) At the point when fluid stops flowing out, tighten the bleeder plug, and then release the brake pedal.
(4) Repeat (2) and (3) until all the air in the fluid has been bled out.
(5) Repeat the above procedure to bleed the brake pipeline of the air for each wheel cylinder.
Notice: Fill brake fluid into the reservoir all the time when bleeding.
3. Check fluid level in reservoir
Check the fluid level and fill fluid if necessary.
Tips: Do not mix and use with other brand of brake fluid.
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Repair1. Remove the front wheel.
2. Discharge the brake fluid.
Note:
Never spray the brake fluid on the paint surface, otherwise wash it immediately.Brake System -Front Brake Disc4-95Sliding Pin Dust Shields3. Remove the front disc brake cylinder.
(1) Remove the connector bolt and washer from the front disc
bake cylinder, and unfix the tube.
(2) Fasten the sliding pin on the front disc brake cylinder, and
remove the two bolts.
4. Remove the front brake pad package (only the pad).
(1) Remove the two brake pads with muffle washers.
(2) Remove muffle and heat isolation washers from the brake
pads.
5. Remove the support pad of the front brake pad.
Remove the two friction block from the brake cylinder support.
6. Remove the sliding pin of the front disc brake cylinder.
7. Remove the two dust shields
Remove the two dust shields from brake cylinder support.
8. Remove the left front disc brake cylinder support.
Remove the two bolts, and then take out the left front disc brake
cylinder support.
9. Remove the dust shield of the brake cylinder.
Remove the retaining ring and dust shield with screwdriver.Braking Disc Cylinder Bracket
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Brake System -Front Brake Disc4-9611. Remove the front brake piston.
(1) Put a piece of cloth or equivalent between the brake cylinder
and the piston.
(2) Blow the piston out of the brake cylinder with compressed air.
Warning:
In the blowing process, the finger shall not be placed before the
piston.
Note:
Don't spray the brake fluid.
12. Remove the piston oil seal.
Take out the oil seal from the brake cylinder with screwdriver.
13. Check the brake cylinder and piston.
Check the cylinder wall and piston whether there is rust or scar.
14. Check the lining thickness of the brake pad.
Measure the lining thickness with ruler.
Standard Thickness: 10.0mm
Minimum Thickness:1.0mm
15. Check the abrasion indicator steel strap of the front brake.
Make sure the abrasion indicator steel strap has adequate flexibility and has no deformation, crack or damage.
All rust, dirt and other impurities shall be cleaned out.
16. Check the thickness of the brake disc.
Measure the thickness of the brake disc with screw micrometer.
Standard Thickness: 20.0mm
Minimum Thickness: 18.0mm
17. Remove the front brake disc.
(1) Make mark on the brake disc and wheel hub.
(2) Remove the brake disc.
18. Install the brake disc.
Tips:
Install the disc at the minimum swing position.
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Brake System -Front Brake Disc4-9719. Check the swing of the brake disc.
(1) Fasten the brake disc temporarily.
Torque: 103N.m
(2) Measure the swing of the brake disc at the 10mm from the disc
edge with a dial test indicator.
Maximum Swing: 0.05 mm
(3) If the swing of the brake disc reaches or exceeds the limit,
check the bearing's axial clearance and the wheel hub's swing.
If the bearing and wheel hub run normally, adjust the swing
of the brake disc, or finish it with onboard finishing machine.
20. Tighten the brake discharge bolt temporarily.
Tighten the brake discharge screw plug on the front brake cylinder temporarily.
21. Install the piston oil seal.
(1) Apply the lithium soap-base glycol lube on the new piston oil seal.
(2) Install the new piston oil seal on the brake cylinder.
22. Install the brake piston.
(1) Apply the lithium soap-base glycol lube on the brake piston.
(2) Install the piston on the front disc brake cylinder.
Note:
Don't tighten the piston into the brake cylinder forcefully.
23. Install the dust shield of the brake wheel cylinder.
(1) Apply the lithium soap-base glycol lube on the dust shield of
the new brake wheel cylinder, and install it on the brake
cylinder.
Tips:
Install the dust shield in the groove of the brake wheel cylinder
and piston reliably.
(2) Install the set ring with screwdriver.
Note:
Be careful not to damage to the dust shield of the brake wheel cylinder.
24. Install the left front disc brake wheel cylinder support.
Fasten the front disc brake wheel cylinder support with two blots.
Torque: 88N.m
25. Install the dust shield of the front disc brake bushing.
Apply the lithium soap-base glycol lube on the surface of the two new dust shields.
Install the two dust shields on the front disc brake cylinder support.
26. Install the sliding pin of the front dist brake cylinder.
Apply the lithium soap-base glycol lube on the surface of the two sliding pin and oil seal.
Install the two sliding pins on the front disc brake cylinder support.
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Brake System -Front Brake Disc4-9827. Install the support piece of the front brake pad.
Remove the two support pieces of the brake pad from the front disc brake cylinder support.
28. Install the brake lining block component.
Note:
When replace the abrasion brake lining block, replace the muffle
pad simultaneously.
(1) Apply the disc brake lube on both sides of all muffle pads
(2) Install muffle pads on all brake lining blocks.
(3) The abrasion indicator face upwards. Install a inner brake
lining block, then install a outer lining block.
Note:
Don't apply the oil or lube on the friction surface of the brake pad and brake disc.
29. Install the front disc brake wheel cylinder.
(1) Install the front disc brake wheel cylinder with two bolts.
Torque: 34N.m
(2) Install the new washer and tube with bolt.
Torque: 30N.m
Tips: Fasten the tube in the lock hole of the brake wheel
cylinder reliably.
30. Add the brake fluid to the storage tank.
31. Discharge the air in the brake cylinder.
32. Discharge the air in the brake pipeline.
33. Check the level height in the storage tank.
34. Check the brake fluid whether there is any leakage.
35. Install the front wheel.
Torque: 103N.m
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Repair Repair the right side as the steps in the left side.
1. Check the thickness of the brake shoe lining.
Remove the hole plug, and check the thickness of the brake shoe
lining through the hole.
If the thickness is less than the minimum thickness, replace a new
brake shoe.
Minimum Thickness: 1.0mm
2. Remove the rear wheel.
3. Discharge the brake fluid.
Note:
Never spray the brake fluid on the paint surface, otherwise wash
it immediately.
4. Remove the rear brake drum.
(1) Loosen the parking brake rod, and remove the brake drum.
Tips: If the brake drum can't be removed easily, carry out the
following steps.
(2) Remove the hole plug, and insert a screwdriver through the
backboard to separate the brake automatic adjustment rod
and the adjustor.
(3) Rotate the adjustment wheel to reduce the length of the
adjustor with another screwdriver.
5. Check the inner diameter of the brake drum.
Measure the inner diameter of the brake drum with a brake drum
gauge or equivalent.
Standard Inner Diameter: 200.0mm
Maximum Inner Diameter: 201.0mm
6. Separate the left positioning post of the parking brake shoe.
Remove the extension spring from the front/rear brake shoe with
a special tool, and separate the left positioning post of the parking
brake shoe.
Note:
Be careful not to damage to the dust shield of the brake cylinder.
7. Remove the front brake shoe.
(1) Remove the end cap, set spring and pin with a special tool.
(2) Unfix the return spring, and remove the front brake shoe.
(3) Remove the left positioning post of the parking brake shoe.Brake System -Rear Brake Drum4-100Rotate
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Brake System -Rear Brake Drum4-10213. Check the brake shoe and the brake shoe lining whether they
touch normally.
Mark the inner surface of the brake drum with chalk, joint and
abrade the brake shoe and the inner surface.
If the drum and the lining touch poorly, abrade the brake shoe or
replace a new one.
14. Remove the left front or top brake wheel cylinder.
(1) Unfix the brake oil pipe with a special tool, and collect the
brake fluid with a container.
(2) Remove the bolt and brake wheel cylinder.
15. Remove the brake cup.
(1) Remove the two dust shields from the brake cylinder.
(2) Remove the two pistons and springs.
(3) Remove the two brake cylinder caps from every piston.
16. Check the brake cylinder.
Check the cylinder wall and piston whether there is any rust or nick.
17. Remove the rear discharge screw plug of the brake drum.
18. Tighten the rear discharge screw plug of the brake drum
temporarily.
19. Install the brake wheel cylinder cup.
(1) Apply the lithium soap-base glycol lube on the two brake
wheel cylinder cups and the piston.
(2) Install two brake cylinder caps on every piston.
(3) Install the compression spring and the two pistons on the
brake wheel cylinder.
(4) Install two new dust shields on the brake wheel cylinder.
20. Install the left front or top brake cylinder.
(1) Install the brake cylinder with bolt.
Torque: 9.8N.m
(2) Connect the brake oil pipe with a special tool.
Torque: 15N.m
21. Apply the heat-resistant lube.
Apply the heat-resistant lube on the touch surface of the brake
backboard and the brake shoe.