Brake--Remove malfunction1. Add brake liquid in storage tank.Brake liquid: DOT-42. Discharge the air in brake main pump.Hint: if brake main pump or liquid storage tank is
disassembled, it is necessary to discharge the air in
brake main pump.
(a) Disassemble brake pipeline of brake main pump.
(b) Step down brake pedal slowly and keep this state.
(c) Plug oil hole with finger, then release brake pedal.
(d) Repeat (b) and (c) three times or four times.3. Discharge the air in brake pipeline.(a) Connect plastic pipe on exhaust bolt of brake branch pump.
(b) After stepping brake pedal several times, and step down
brake pedal, then release inflating bolt to discharge air.
(c) Lock exhaust bolt until brake liquid stops flowing out, then
release brake pedal.
(d) Repeat (b) and (c) until air is discharged completely.
(e) Repeat the procedure above, and release the air in brake
pipeline of every wheel.
Torque: 12.7-17.6 N
⋅ ⋅⋅ ⋅
⋅m4. Check the brake liquid storage tankCheck the liquid level in storage tank, if necessary, add brake
liquid.
Brake liquid: DOT-4.Brake liquidDischarge the air in brake systemHint: if any part of brake system has been damaged or
you disbelieve whether there is any air in brake pipeline,
it is necessary to discharge the air in brake system
completely.
Note: do not make brake liquid spill on paint surface, if
having, wash it cleanly.135
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
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
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
Steering column--Steering systemSteering column--Steering system
Steering column--Steering systemSteering column--Steering systemSteering column--Steering system
Steering column
Steering system
Note
1. Notes that are necessary for steering system:
(a) It is necessary to change parts correctly, for they will influence the performance of steering system to
make running danger.
2. Notes that are necessary for SRS airbag:
(a) MR7180 assembles with SRS (auxiliary protection system) such as safety airbag at the side of driver
and safety airbag at the side of passenger.
Maintenance does not accord with correct repair step, this might incur SRS explodes suddenly in
repair term to make heavy accident. Before repairing auxiliary protection system (including
disassembling, assembling, check or change parts), it is necessary to read the notes in SRS chapter
(auxiliary protection system).
Malfunction phenomenon table
Following table could help you find the reason of malfunction. And the number in table is only used for indicat-
ing possible preferred sequence. Please check each part by sequence, if necessary, change this part.
Malfunction phenomenon Possible malfunction part Referred page
1.Tyre (tyre pressure is wrong). 109
2.Power steering oil level (low). 200
3.Driving belt (loose). -
4.Wheel alignment (wrong). 87
Steering is heavy 5.Steering system joint (abraded). -
6.Lower control arm ball joint (abraded). 99
7.Steering column (bent). -
8.Power steering oil pump. 203
9.Power steering gear. 205
1.Tyre (tyre pressure is wrong). 109
Return is bad 2.Wheel alignment (wrong). 87
3.Steering column (bent). -
4.Power steering gear. 205
1.Steering system joint (abraded). -
2.Lower control arm ball joint (abraded). 99
Clearance is too big. 3.Middle shaft, sliding fork (abraded). -
4.Front wheel bearing (abraded). 123
5.Power steering gear. 205
1.Power steering oil level (low). 200
2.Steering system joint (abraded). -
Abnormal noise
3.Power steering oil pump. 203
4.Power steering gear. 205
192
Power steering--Poser steering system
Malfunction phenomenon Possible malfunction part Reference page
1.Tyre (tyre pressure is wrong).109
2.
Power steering oil level (low).200
3.
Driving belt (loose).-
4.
Wheel alignment(wrong).87
Steering is heavy5.Steering system joint (abraded).-
6.
Lower control arm ball head (abraded).99
7.
Steering column (bent).-
8.
Power steering oil pump203
9.
Power steering gear205
1.
Tyre (tyre pressure is wrong).109
Return is bad2.Wheel alignment (wrong)87
3.
Steering column (bent)-
4.
Power steering gear205
1.
Steering system joint (abraded)-
2.
Lower control arm ball head (abraded)99
Clearance is too big3.Middle shaft, sliding fork (abraded)-
4.
Front wheel bearing (abraded)123
5.
Power steering gear205
1.
Power steering oil level (low)200
Abnormal noise2.Power steering joint (abraded)-
3.
Power steering oil pump203
4.
Power steering gear205
Malfunction phenomenon table
Use following table to help you find the reason of malfunction, the number in table only show the possible
preference sequence of malfunction, please check each part by sequence, if necessary, change this part.
199
Power steering--Poser steering system
Inspection on automobile
1. Check driving belt
(a) Check whether the belt has been abraded too much with eyes, and rope is broken.
If finding any defect, change the driving belt.
Hint: Some light crack at the side of belt rib could be approved, but if belt has any crack from
its rib, it is necessary to change.
2. Exhaust air of power steering system
(a) Check the oil level.
(b) Lift up automobile body, and support it with bracket.
(c) Turn steering wheel.
(1) Turn steering wheel slowly from left and right to bottom for several times when engine extinguishes.
(d) Lay down the automobile.
(e) Start the engine to make it run at idling speed for several minutes.
(f) Rotate steering wheel.
(1) Keep engine at idling speed, and turn the steering wheel from left or right to bottom and keep this
state for 2-3 seconds, then turn it to the other direction for 2-3 seconds.
(2) Repeat (1) for several times.
(g) Engine extinguishes.
(h) Check whether there is any foam or emulsification
phenomenon.
If there is any foam or emulsification phenomenon and
it is necessary to exhaust air second time, it is necessary
to check whether the system has any leakage.
(i) Check the oil level.
3. Check the oil level
(a) Keep automobile horizontal.
(b) Extinguish the engine, and check the oil level of oil stor-
age tank.
If oil level is too low, add oil.
Power steering oil: automatic transmission oil
DEXRON’’ II or III
Hint: check whether the oil level is in the HOT mark
scope of oil storage tank, if oil is cool, check the
oil level is in COLD mark scope.
(c) Start the engine, and keep it at idling speed.
(d) Turn steering wheel from left bottom to right bottom for
several times to make oil temperature increase.
Oil temperature: 80°C
Normal Abnormal
200
Normal Abnormal
(e) If there is any foam or emulsification phenomenon, it is necessary to exhaust air in power steering
system.
(f) Keep the engine at idling speed, and measure the oil
level of oil storage tank.
(g) Engine extinguishes.
(h) After waiting for several minutes, measure the oil level
of oil storage tank again.
Maximal increased height of oil level: 5mm
If finding any problem, it is necessary to exhaust
the air in power steering system.
(i) Check the oil level.
4. Check steering oil pressure.
(a) Disassemble oil pressure supply pipe from power steering gear. (referring to page 205)
(b) Connect special tool liking that shown in figure.
Note: when checking, the valve of special tool should be opened.
(c) Exhaust the air in power steering system.
(d) Start the engine, and keep it at idling speed.
(e) Turn steering wheel from left bottom to right bottom for several times to make oil temperature
Power steering--Poser steering system
increase.
Oil temperature: 80°C
(f) Keep the engine at idling speed, and close the valve of
special tool, then observe the reading of special tool.
Minimal oil pressure: 6400kPa
Note:
yThe closing time of oil pressure meter valve could not
Accessory
Power steering
gear
InOut
Accessory Oil pressure supply pipe
Power
steering
gearClose
Pump Oil tank
Special tool
¡Ü¡Ü
¡Ü¡Ü¡Ü5mm
Special tool
201