Brake--Rear brake assembly

Use screw driver to disassemble oil seal of piston from brake

branch pump.

Note: do not damage cylinder wall and slot.

10. Disassemble exhaust bolt of branch pump.

11. Check whether there is any dust or scratch on

branch pump and piston.

12. Check the thickness of brake block.

Use rule to measure the thickness of brake block.

Standard thickness: 10.0mm

Minimal thickness: 1.0mm

13. Check the thickness of brake disk.

Use centimeter of exterior diameter to measure the thickness

of disk.

Standard thickness: 9.0mm

Minimal thickness: 8.0mm

14. Disassemble rear brake disk.

(a) Make a mark on disk and shaft hub.

(b) Disassemble disk.

15. Assemble brake disk.

Hint: choose the position with minimal terminal run-out

to assemble brake disk.

16. Check the terminal run-out of disk.

(a) Lock the disk temporarily with screw cap of shaft hub.

Torque: 103-10 N

⋅⋅⋅⋅⋅m

(b) Use centimeter to measure the terminal run-out of brake

disk on the position with 10mm apart from the exterior edge

of brake disk.

Maximal run-out quantity: 0.15mm

(c) If terminal run-out of brake disk exceeds or equals to maxi-

mal value, firstly, check the axial clearance of bearing, then

check the terminal run-out of shaft hub, if they are both

normal, adjust the terminal run-out of brake disk to eligible

value or use turning motor to turn terminal surface of brake

disk.

17. Lock exhaust bolt of rear brake branch pump

temporarily.

Lock exhaust bolt to rear brake branch pump temporarily.

18. Assemble oil seal of piston.

(a) Spread lithium soap base glycol lubricating grease on new

oil seal of piston.

(b) Assemble oil seal of piston to brake branch pump.

145

Brake--Rear brake assembly

19. Assemble piston of Rear brake branch pump

(a) Spread lithium soap base glycol lubricating grease on the

piston.

(b) Assemble piston on brake branch pump.

Note: do not force piston to assemble in branch pump

compulsively.

20. Assemble dustproof cover of branch pump.

(a) Spread lithium soap base glycol lubricating grease on new

dustproof cover of branch pump.

(b) Assemble dustproof cover in brake branch pump.

Hint: dustproof cover should be assembled in branch

pump firmly.

(c) Use screw driver to assemble fixing loop.

Note: do not damage dustproof cover.

21. Assemble dustproof bushing of rear brake.

(a) Spread lithium soap base glycol lubricating grease on the

surface of three dustproof bushings.

(b) Assemble three dustproof bushings in brake branch pump.

22. Assemble the bushing of brake branch pump

bracket.

Assemble two bushings of brake branch pump bracket.

23. Assemble brake branch pump.

(a) Assemble branch pump with two bolts.

Torque: 47 

±±±±± 4N⋅⋅⋅⋅⋅m

(b) Assemble new gasket and brake hose with joint bolt.

Torque: 30 

±±±±± 3N⋅⋅⋅⋅⋅m

Hint:

z

Gasket has two types: two sheets type and one

sheet type.

z

Brake soft pipe should be assembled in localizing

hole of branch pump firmly.

146

Brake branch pump

Dustproof cover

Dustproof cover

Brake branch pump

Brake--Rear brake assembly

24. Assemble rear brake block.

Note: when changing brake block, the inside of muffle gasket should be changed together.

(a) When assembling muffle gasket on every brake block, it is necessary to spread brake lubricating

grease on the inside of muffle gasket.

(b) When assembling inner brake block, abrasion indicator should face upside.

Note: do not attach any oil dirt or lubricating grease on the surface of brake block and brake

disk.

(c) Assemble two guide pins of brake block.

(d) Assemble fixing clamp of anti-abrasion spring.

25. Add brake liquid in storage tank.

26. Discharge the air in brake main pump (referring to page 135).

27. Discharge the air in brake pipeline (referring to page 135).

28. Check the liquid level in storage tank.

29. Check whether brake liquid leaks.

30. Assemble rear wheels.

Torque: 103 

±±±±± 10N⋅⋅⋅⋅⋅m

147

Hydraulic control unit (equipping with ABS)

Inspection on automobile

1. Connect handle tester

(a) Connect handle tester to DLC3.

(b) Start the engine and make it run at idling speed.

(c) Handle tester should choose “Active test” module.

Hint: details could refer to operating instruction for handle tester.

2. Check the function of hydraulic .

(a) Start the motor relay, and check hydraulic motor should have working sound.

(b) Stop the motor relay.

(c) Step brake pedal for 15 minutes, and check brake pedal should not be stepped down.

(d) Start the motor relay, and check brake pedal should not have any pulse.

Note: Time when motor relay locates ON could not exceed 5 seconds, when it is necessary to

operate continually, interval time should be over 20 seconds.

(e) Stop the motor relay and release brake pedal.

3. Check the function of right front wheel.

Note: forbid making electromagnetic valve be ON in following situations.

(a) Make following operation when brake pedal is stepped down.

(b) Make electromagnetic valve SFRH and SFRR be ON at the same time, and check the brake pedal

should not be stepped down.

Note: Time when motor relay locates ON could not exceed 5 seconds, when it is necessary to

operate continually, interval time should be over 20 seconds.

(c) Make electromagnetic valve SFRH and SFRR be OFF at the same time, and check the brake pedal

should be able to be stepped down.

(d) Make electromagnetic valve SFRH and SFRR be ON at the same time, and check whether the brake

pedal could return.

Note: Time when motor relay locates ON could not exceed 5 seconds, when it is necessary to

operate continually, interval time should be over 20 seconds.

(e) Make motor relay be OFF and release brake pedal.

4. Check the function of other wheels.

Check the electromagnetic valves of other wheels by same procedure.

Hint:

Left front wheel: SFLH,SFLR

Right rear wheel: SRRH,SRRR

Left rear wheel: SRLH, SRLR

Change

1. Discharge brake liquid.

Note: do not leave brake liquid on paint surface of automobile body, if having, wash it cleanly.

2. Disassemble right front wheel.

Brake--Hydraulic pressure control unit

148