power steering GEELY FC 2008 User Guide

Power steering--Poser steering system
Power steering
Power steering system
Note
1. Notes for steering system:
It is necessary to change parts correctly, for they will influence the performance of steering system to incur
running danger.
2. Notes for SRS airbag system
MR7180 equips with SRS (auxiliary protection system), such as safety airbag at the side of driver and
safety airbag at the side of passenger, if repairment does not accord with correct sequence, it might incur
SRS explodes suddenly in repairing term to make heavy accident. Before repairing (including disassem-
bling or assembling, checking or changing parts), it is necessary to read the notes in chapter SRS (auxiliary
protection system) carefully.
 198 

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 

Power steering--Power steering system
exceed 10 seconds.
yDo not make oil temperature become too high.
(g) When engine is running at idling speed, open the valve
completely.
(h) Measure the 1.000 rpm and 3.000 rpm oil pressure of
engine.
Oil pressure difference: 490 kPa or less
Note: do not turn the steering wheel.
(i) When engine is running at idling speed, open the valve
completely, and turn the steering wheel to bottom.
Minimal oil pressure: 6,400kPa
Note:
yDo not keep the wheel locate at bottom for over 10
seconds.
yDo not make oil temperature become too high.
(j) Disassemble the special tool.
(k) Connect oil pressure supply pipe with power steering gear
(referring to page 205)
(l) Exhaust the air in power steering system.
5. Check the steering force
(a) Put the steering wheel at central position.
(b) Disassemble safety airbag assembly at the side of driver.
(c) Start engine, and make it run at idling speed.
(d) Measure the steering force of two directions.
Steering force (reference): 5.5 N
x xx x
xm
Hint:before diagnosing, it is necessary to consider
the tyre type, tyre pressure and contacting sur-
face at first.
(e) Tighten fixed screw cap of steering wheel.
Torque: 50 ± 5 N
x xx x
xm
(f) Assemble the safety airbag assembly at the side of driver.
Power
steer-
ing
gearOpen
Pump Oil tank
Open
Pump Oil tank
Power
steering
gear
Turn the steering wheel
to the bottom position
Special tool
Special tool
 202 

Power steering--Power steering oil pump assembly
Power steering oil pump assembly
Overhaul
1. Disassemble front wheel
2. Disassemble right bottom defender board [68000004]
3. Disassemble driving belt.
4. Disassemble oil storage tank to the No. 1 oil pipe
of power steering pump
Disassemble fixed clamp, and take down the oil storage tank
to the No. 1 oil pipe of power steering pump.
5. Disassemble in-out oil pipe assembly of power
steering gear [64000131]
(a) Use special tool to disassemble in-out oil pipe assembly.
(b) Disassemble the bolts and disconnect the fixed clamp of
in-out oil pipe.
6. Disassemble rear bracket of power steering pump
Disassemble the bolt and rear bracket of power steering pump.
7. Disassemble power steering oil pump assembly
[64000132]
(a) Disconnect the joint of oil pressure switch.
(b) Disassemble two bolts, two screw caps, then take down
the power steering oil pump assembly.
8. Assembly power steering oil pump assembly
(a) Assemble power steering oil pump assembly with two
bolts and two screw caps.
Torque: 37 N
x xx x
xm
(b) Connect the joint of oil pressure switch.
Note: the joint could not contact any oil.
9. Assemble the rear bracket of power steering oil pump assembly
Assemble rear bracket of power steering oil pump assembly with bolts.
Torque: 37 N
x xx x
xm
Hint:Insure the stop lever of bracket has contacted the body of power steering pump, then
tighten the bolt.
 203 
Special tool

10. Connect the in-out oil pipe assembly of power
steering gear [64000131]
(a) Assemble fixed clamp of in-out oil pipe with bolt.
Torque: 7.8 N
xm
(b) Connect in-out oil pipe with special tool.
Torque: 41 Nz
xm
Hint:
zUse torque wrench whose lever length is 345 mm.
zSpecial tool should be parallel with torque wrench,
only this could make practical torque value.
11. Connect the N0. 1 oil pipe of oil storage tank to power steering oil pump assembly.
Connect oil pipe with fixed clamp.
12. Assemble driving belt.
13. Assemble front wheel.
Torque: 103 ± 10 Nx xx x
xm
14. Add power steering oil.
15. Exhaust the air in power steering system.
16. Check whether there is any oil leakage.
17. Assemble right bottom defender board of engine [68000004].
Power steering--Power steering oil pump assembly
Special
tool
¸Ü¸Ü
¸Ü¸Ü¸Ü¸Ë¸Ë
¸Ë¸Ë¸Ë³¤³¤
³¤³¤³¤¶È¶È
¶È¶È¶È
 204 

Power steering gear assembly
Overhaul
1. Make front wheel face the front
2. Disassemble safety airbag assembly at the side of driver
(equipping with SRS) [6701011]
3. Disassemble steering wheel assembly [67010001].
4. Disassemble dust-proof cover in steering column
[64000123].
Disassemble two screw caps, then take down the dust-proof
cover.
5. Disassemble steering sliding shaft assemble
(a) Make mark on sliding yoke and steering middle shaft.
(b) Loosen A bolt and disassemble B bolt, then disassemble
sliding shaft.
6. Disassemble front wheel
7. Disassemble right bottom defender board [68000004].
8. Disassemble left bottom defender board [68000003].
9. Disconnect left end terminal of transversal lever
(a) Disassemble cotter pin and screw cap.
(b) Use special tool to disassemble the left end terminal of
transversal lever from steering knuckle.
Hint: disassemble the other with same method.
10. Disassemble right end terminal of transversal lever.
11. Disassemble in-out oil pipe assembly of power
steering gear [64000131].
(a) Use special tool to disassemble in-out oil pipe assembly
of power steering gear.
Power steering--Power steering gear assembly
Align the mark
Special tool
Special tool
 205 

Power steering--Power steering gear assembly
(b) Disassemble the screw and disconnect the fixed clamp of
in-out oil pipe assembly of power steering gear.
12. Disassemble linking lever assembly of front stabi-
lizer bar [64000097].
(a) Use socket head wrench (5mm) to fix bolt, then disas-
semble screw cap.
(b) Disassemble the left linking lever of front stabilizer liking
lever assembly.
Hint: disassemble the other with same method.
13. Disassemble the coupling bolt and nut of left/right
lower control arm ball head and control arm.
Disassemble one bolt and two nuts, and disassemble control
arm from left steering knuckle.
Hint: disassemble the other with same method.
14. Disassemble engine cover assembly
15. Support engine assembly.
16. Disassemble auxiliary automobile bracket assem-
bly [64000087]
(a) Disassemble two bolts, then disassemble side rail from
right front engine suspension.
(b) Disassemble two bolts, then disassemble carling from au-
tomobile body.
(c) Disassemble the bolt and three nuts, then disassemble
engine rear suspension from auxiliary automobile bracket.
(d) Use gearbox jack to support auxiliary automobile bracket.
(e) Disassemble four bolts and auxiliary automobile bracket
assembly with steering gear.
17. Disassemble exterior dust-proof cover of steering
column.
 206 

Power steering--Power steering gear assembly
Align the mark
18. Disassemble steering middle shaft.
(a) Make mark on middle shaft and steering small gear shaft.
(b) Disassemble bolt and steering middle shaft.
19. Disassemble power steering gear assembly
[64000133].
(a) disassemble four bolts, and disassemble power steering
gear from beam.
20. Fix power steering gear assembly [64000133].
(a) Use special tool to insure power steering gearbox assem-
bly is clamped on pliers.
Hint: affix ethylene glue on special tool before using.
21. Disassemble left transversal lever ball head.
(a) Make mark on transversal lever ball head and gear end.
(b) Loosen fixed nut, then disassemble transversal lever ball
head and fixed nut.
Hint: disassemble the other side with same method.
22. Disassemble right transversal lever ball head.
23. Check left transversal lever ball head.
(a) Insure the left transversal lever ball head is clamped on
pliers.
(b) Assemble nut on bolt.
(c) Shake the bolt of joint front and back for 4-5 times.
(d) Use torque wrench to rotate screw cap continually at the
speed of 2-4 s/r, then read the torque at fifth rotate.
Rotating torque: 0.49-3.43 N.m
Hint: check the other side with same method.
Align the mark
Ethylene
adhesive
tape
Special tool
 207