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Section 7 Rear Brake DrumComponent ViewDust shield
Piston
Cup
Spring
Rear bake shoe
Locating spring
Rear brake drum Shoe pad positioning spring cover Front brake shoe
Shoe pad positioning spring cover Pin
BaseboardDust
coverPiston
PinCupLeft parking brake shoe pad postCvlinder
Extension springBrake System -Rear Brake Drum4-99Discharge plug
Discharge plug
Hole plug
Pin plug
C-ringExtension rod
Shoe pad positioning spring Adjustment rod springRear brake automatic
adjustment rodParking brake
inhaul cable
Return spring
Non-reusable parts
Lithium soap base glycol lube
Heat-resistant lubespecified torqueN.
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 Drum4-1018. Remove the left brake automatic adjustment rod.
Remove the brake adjustment rod and its spring.
9. Remove the return spring of the brake shoe.
Remove the return spring from the brake shoe.
10. Remove the rear brake shoe.
(1) Prize the end cover with a special tool, and remove the set
spring and pin.
(2) Remove the parking brake cable from the parking brake
extension rod with a pair of pinchers.
11. Remove the parking brake shoe extension rod accessory.
Remove the C-washer and parking brake shoe extension rod with
screwdriver.
12. Check the thickness of the brake shoe lining.
Measure the thickness of the brake shoe lining with ruler.
Standard Thickness: 5.0mm
Minimum Thickness: 1.0mm
If the thickness reaches the minimum thickness or below, or
serious/uneven abrasion occurs, replace a new brake shoe.
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Brake System -Rear Brake Drum4-10322. Install the parking brake shoe extension rod accessory.
Install a new C-washer, and install the parking brake shoe
extension rod.
23. Install the brake shoe.
(1) Connect the parking brake cable to the parking brake
extension rod with a pair of pinchers.
(2) Install the brake shoe, pin, set spring and set spring cap with
a special tool.
24. Install the return spring of the brake shoe.
Install the return spring on the brake shoe.
25. Install the left brake automatic adjustment rod.
Install the automatic adjustment rod and its spring on the front
brake shoe.
26. Install the parking brake shoe post.
(1) Apply the heat-resistant lube on the adjustment bolt.
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Brake System -Rear Brake Drum4-104 (2) As shown in the figure, install the parking brake left post.
27. Install the front brake shoe.
(1) Install the return spring on the front brake shoe.
(2) Install the front brake shoe, pin, set spring and set spring cap
with a special tool.
28. Connect the parking brake shoe left post.
Connect the extension spring to the front/rear brake shoe with a
special tool.
Note:
Be careful not to damage to the dust shield of the brake wheel
cylinder.
29. Check the installation of the brake drum.
(1) Check all parts whether they are installed properly.Braking Plate
parking brake left post
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Brake System -Rear Brake Drum4-105 (2) Measure the inner diameter of the brake drum and the
diameter of the brake shoe, and check the difference of them
whether it is a proper brake shoe clearance.
Brake Shoe Clearance: 0.3mm
Note:
Don't apply the oil or lube on the friction surface of the brake shoe
lining and brake drum.
30. Adjust the shoe clearance of the brake drum.
(1) Install two wheel hub nuts temporarily.
(2) Turn around eight teeth of the adjustor.
(3) Install the hole plug.
31. Install the rear brake drum sub-assembly.
32. Add the brake fluid to the storage tank.
33. Discharge the air in the master cylinder.
34. Discharge the air in the brake pipeline.
35. Check the level height in the storage tank.
36. Check the brake fluid whether there is any leakage.
37. Install the rear wheel.
Torque: 103N.m
38. Check the stroke of the parking brake extension rod.
39. Adjust he stroke of the parking brake extension rod.Extend
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Brake System -Parking Brake System4-106Section 8 Parking Brake SystemComponent View#3 parking brake extension rod
Lithium soap base glycol lubespecified torqueN.
m :Parking brake balance port Parking brake extension rod
Inhaul cable #1 adjustment nutParking brake balance port Parking brake extension rod accessory
Parking brake switch component
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Brake System -Parking Brake System4-107Adjustment1. Remove the rear wheel.
2. Adjust the clearance of the brake shoe.
3. Install the rear wheel.
Torque: 103N.m
4. Check the stroke of the parking brake extension rod.
Pull the parking brake extension rod, and count the number of sound.
Parking Brake Extension Rod Stroke: Pull with 196N force till 6-9 clicks.
5. Adjust the stroke of the parking brake extension rod.
(1) Remove the glove box cover.
(2) Turn #1 adjustment nut inhaul cable till the stroke is ok.
(3) Install the glove box cover.Parking Brake System The table below can help you find out the possible failure reasons. The number means the possible sequence
of the reasons. Check the parts, and replace the corresponding parts if necessary.Parking Brake Tension Rod Component1. Remove the accessories of the console.
2. Remove the middle console.
3. Remove #1 adjustment nut wire.
Remove #1 adjustment nut wire.
4. Remove the accessories of the parking brake extension rod.
(1) Remove the connector of the parking brake extension rod
switch.
(2) Remove the two bolts, and remove the parking brake exten
sion rod.
5. Remove the parking brake switch component.
Remove the screw and parking brake switch component.Suspected location
1. The stroke of the parking brake extension rod is misadjusted.
2. The parking brake inhaul cable is trapped.
3. The clearance of the parking brake shoe is misadjusted.
4. The parking brake lining is cracked or deformed.
5. The return or extension spring is damaged.Symptom
Brake is blocked.#1 adjustment nut inhaul cable