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Brake--Front brake assembly13. Check the brake branch pump and pistonCheck whether there is rust or scratch in cylinder of branch
pump and piston.14. Check the thickness of brake blockUse rule to measure the thickness of brake block.
Standard thickness: 11.00mm
Minimal thickness: 1.0mm15. Check support sheet of brake block
142Confirm the support sheet could rebound enough without any distortion, crack or abrasion, and it has
removed rust, dust and sundries completely.16. Check the thickness of brake diskUse centimeter to measure the thickness of brake disk.
Standard thickness: 25.00mm
Minimal thickness: 23.0mm17. Disassemble front brake disk(a) Make a mark on corresponding position of brake disk and shaft hub.
(b) Disassemble brake disk.18. Assemble brake diskHint: choose the position with minimal terminal run-out quantity to assemble brake disk.19. Check the terminal run-out of brake disk(a) Lock the brake disk temporarily with shaft hub nut.
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: 0.05mm
(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.20. Lock exhaust bolt temporarilyLock exhaust bolt temporarily on front brake branch pump.21. 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 on brake branch pump.
Note: do not force piston to assemble in branch pump compulsively.22. Assemble piston of front 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.
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Brake--Front brake assembly23.Assemble dustproof cover of branch pump..(a) After spreading lithium soap base glycol lubricating grease
on new dustproof cover of branch pump, assembling it in
brake branch pump.
Hint: dustproof cover should be assembled in branch
pump firmly.
(b) Use wrench to assemble fixing loop.
Note: do not damage dustproof cover.24. Assemble brake branch pump bracket.Use two bolts to assemble brake branch pump bracket.
Torque: 106
± ±± ±
± 10 N
⋅ ⋅⋅ ⋅
⋅m25. Assemble dustproof cover of brake branch pump
bracket.(a) Spread lithium soap base glycol lubricating grease on new
dustproof cover.
(b) Assemble two dustproof covers in front brake branch pump
bracket.26. Assemble sliding pin of front brake branch pump.(a) Spread lithium soap base glycol lubricating grease on the
surface of sliding part and sliding pin.
(b) Assemble two sliding pins in front brake branch pump
bracket.27. Assemble support sheet of brake block.143 28. Assemble brake block.Note: when changing brake block, muffle gasket should be changed with brake block at the same
time.
(a) Spread brake lubricating grease on both sides of every muffle gasket.
(b) Assemble muffle gasket on every brake block.
(c) When assembling inner brake block, abrasion indicator should face the upside.
Note: do not attach oil dirt or lubricating grease on the surface of brake block and brake disk.29. Assemble brake branch pump assembly.(a) Use two bolts to assemble brake branch pump.
Torque: 34
± ±± ±
± 3N
⋅ ⋅⋅ ⋅
⋅m
(b) Use joint bolt to assemble new gasket and brake hose.
Torque: 30
± ±± ±
± 3N
⋅ ⋅⋅ ⋅
⋅m
Hint: Gasket has two types: two sheets type and one type.
Bracket soft pipe should be assembled in localizing hole of branch pump firmly.30. Add brake liquid in storage tank.
31. Discharge the air in brake main pump.
32. Discharge the air in brake pipeline.
33. Check the liquid level of storage tank.
34. Check whether the brake liquid leaks.
35. Assemble front wheels.Torque: 103
± ±± ±
± 10 N
⋅ ⋅⋅ ⋅
⋅m
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Brake--Rear brake assemblyRear brake assembly
OverhaulHint: overhaul procedure for right side is same as the left side.1. Disassemble rear wheels.
2. Discharge brake liquid.Note: do not spill the brake liquid on paint surface of automobile body, if having, wash it cleanly.3. Disassemble brake block of rear wheels.(a) Disassemble fixing clamp of anti-vibration spring.
(b) Disassemble two guide pins of brake block and brake block
with muffle gasket.
(c) Take down muffle gasket from every brake block.4. Disassemble left rear brake branch pump.(a) Disassemble the joint, bolt and gasket of brake hose of brake
branch pump, then disassemble brake hose.
Hint: gasket has two types: two sheets type and one
sheet type
(b) Disassemble two bolts and brake branch pump.5. Disassemble the bushing of brake branch pump.Disassemble two bushings from brake branch pump.6. Disassemble dustproof bushing of rear brake.Disassemble three dustproof bushings.7. Disassemble dustproof cover of branch pump.Use screw driver to disassemble fixing loop and dustproof cover.8. Disassemble the piston of brake branch pump.(a) Put a cloth or similar thing between the piston and branch
pump.
(b) Use compressed air to disassemble piston from branch
pump.
Warning: when using compressed air, do not put your
fingers at the front of piston.
Note: do not let brake liquid splash on you.9. Disassemble oil seal of piston.144
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Brake--Rear brake assemblyUse 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: 1.0mm13. Check the thickness of brake disk.Use centimeter of exterior diameter to measure the thickness
of disk.
Standard thickness: 9.0mm
Minimal thickness: 8.0mm14. 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
Page 158 of 419
Brake--Rear brake assembly24. 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
⋅ ⋅⋅ ⋅
⋅m147
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Brake--Hydraulic pressure control unit3. Disassemble gasket of right wheel wing.
4. Disassemble hydraulic control unit and bracket.(a) Disassemble the joint and bolt.
(b) Turn the locking bolt of joint of hydraulic control unit, and
disassemble the joint.
(c) Use special tool to disassemble the brake oil pipe on hy-
draulic control unit.
(d) Use label to mark the name of every oil pipe, and tie it on
oil pipe.
(e) Disassemble screw caps, two bolts and hydraulic control
unit and bracket.5. Disassemble hydraulic control unit assembly.Disassemble three bolts and hydraulic control unit from the bracket.6. Assemble hydraulic control unit assembly.Assemble three bolts and hydraulic control unit on the bracket with three bolts.
Torque: 4.7 N
⋅ ⋅⋅ ⋅
⋅m149Connect the front
of main cylinder
Connect the back
of main cylinder
Connect 2#
brake pipe
Connect the front left
Connect 2#
brake pipeConnect the front right
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Brake--Hydraulic pressure control unit7. Assemble hydraulic control unit and bracket.(a) Assemble hydraulic control unit and bracket with screw cap
and two bolts.
Torque: 19 N
⋅ ⋅⋅ ⋅
⋅m
(b) Liking that shown in figure, use special tool to assemble
brake oil pipe on correct position of hydraulic control unit.
Torque: 15
± ±± ±
± 2 N
⋅ ⋅⋅ ⋅
⋅m
(c) Connect the joint of hydraulic control unit.
(d) Assemble bolt and connect the joint.8. Assemble gasket of right front wing.
9. Assemble right front wheel.
10. Add brake liquid in storage tank.
11. Discharge the air in main pump.
12. Discharge the air in brake pipeline.
13. Check the liquid level of brake liquid.
14. Check whether brake liquid leaks.
15. Use handle tester to check the hydraulic control
unit.150Connect the front
of main cylinder
Connect the back
of main cylinder
Connect 2#
brake pipe
Connect the front left
Connect 2#
brake pipeConnect the front right
Page 175 of 419
18. Check the assembly of parking brake system.
Check every part after assembly.
Note: do not attach oil dirt or lubricating grease on contacting surface between shoe friction
sheet and brake drum.
Parking brake--Parking brake assembly
19. Assemble the brake
20. Adjust the clearance of parking brake shoe.
(a) Lock screw cap of shaft hub temporarily.
(b) Disassemble hole plug, then use screw driver to turn the
adjustor until brake drum is locked by shoe.
(c) Return the adjustor for 8 gears.
(d) Check whether shoe has lag.
(e) Assemble hole plug.
21. Assemble rear disk type brake branch pump assem-
bly (LH).
22. Assemble rear wheels.
Torque: 103
± ±± ±
± 10N
⋅ ⋅⋅ ⋅
⋅m
23. Check the travel of parking brake drag lever.
24. Adjust the travel of parking brake drag lever.
Left
Right
Front
Front
Increase the
clearance
Decrease the
clearance
164