Great Wall Hover. Manual - part 74

Brake-17

3. Uplift the brake pump

a. Remove the location pin.

b. Uplift the brake pump and hang it with a rope to protect the brake

oil pipe.

Remarks:   do not remove the brake oil pipe.

4. Remove the following components:

a.  Two brake blocks

b. Two silencing plates

c. Two silencing plate combinations

d. One brake block bush wearing indication plate

e. Two brake block circlips

5. Measuring the depth of brake discs

(refer to the step 2 of measuring the components of rear brake)

6. Measuring the brake disc circular runout

(Refer to step 3 of measuring the components of rear brake)

7. Install the brake block Circlip

Brake-18

8. Install new brake block

a. Install a brake block bush wearing indication plate on the internal

brake block.

b. Install one silencing plate and one silencing plate combination on

each brake block.

Remarks: Coat the two sides of silencing plate with disc brake

oil (which cannot be replaced with oil of other models).

c. Install two brake blocks, make the wearing indication plate in the

lower position (near the tank cylinder).

Remarks: The working surface of the brake block and brake

disc are not allowed to be contaminated by grease and paint.

9. Install the sub pump

a. Unscrew the release screw, absorb some of the brake fluid.

b. Press the plunger with hammer beam or similar tools, and unscrew

the release screw at the same time.

Tightening force:   8

13N

m

Remarks: Only the brake block of one wheel can be replaced for

once, lest the plunger on the opposite side be bounced.

c. Install and tighten the location pin.

Tightening force:   25

30N

m

10. Install the rear wheel

Tightening force:   120N

m

11. Fill up with the brake fluid and drain the air in the brake

system after the completion of replacement.

Brake-19

Removal of brake pump

1.Remove the brake pipeline

Remove the brake pipeline. Use a container to contain the brake fluid.

2. Remove the pump form the bracket

a. Remove the location pin and guide pin.

b. Remove the tong.

3. Remove the brake block

a. Two pieces of brake block

b. Two pieces of silencing plate

c. Two pieces of silencing plate combination

d. One piece of brake block bush abrasion indicating plate

e. Two brake block circlips

Disassembly of brake pump

1. Remove the piston form the tong

a. Insert the cleaning cloth or other soft cloth into the place between

piston and tong.

b. Use the compressed air to remove the piston and cylinder hole

dustproof cover from the tong.

Warning: it must not place the finger in front of the piston when

use the compressed air.

2. Remove the piston gasket form the tong

Use the screwer to remove the piston gasket.

Brake-20

Check the components of rear brake

1. Measure the thickness of the brake block bush.

Standard thickness:   8.0mm

Minimum thickness:   2.0mm

It should replace the brake block if less than minimum thickness or

has uneven abrasion.

2. Measure the thickness of brake disc.

standard thickness:   18.0mm

minimum thickness:   16.0mm

It should repair or replacement brake disc if it is scratched or worn or

its thickness is less than  minimum thickness.

3. Measure the circular runout of brake disc.

Remarks: It should ensure that the rear bearing is adjusted

correctly before the measurement.

Maximum circular runout :   0.11mm

4. Replace the brake disc if necessary.

a. Remove the bracket form the rear axle flange.

b. Remove the rear brake disc and install the new brake disc .

c. Install the bracket and tighten the fastening brake caliper bolt.

    Tightening force:   100

5N

m