Chapter 5 Front Suspension SystemSection 1 Front Suspension SystemDescription on front suspension structureThis model uses strut swing arm independent suspension with stabilizer bar.
The shock absorber upper end is flexibly connected to the body through the shock absorber mounting seat, the
lower end is rigidly connected to the steering knuckle. The coil spring encloses the shock absorber (coil spring
geometrical axial line does not coincide with that of the shock absorber piston rod), and is supported between the
upper and lower spring seats.
Both ends of the stabilizer bar are connected to the shock absorber through the strut bar ball pin and the intermediate
part is supported on the lower front body by the rubber bushing and support frame.
The front cushion sleeves the shock absorber piston rod head to restrict the wheel jump limit position and plays
the role of buffer.
The thrust ball bearing, installed between the spring upper seat and the shock absorber mount, is used for the
relative rotation upon steering of the shock absorber rigidly connected to the steering knuckle to the shock absorber
mount flexibly connected to the body.
"L" type lower swing arm is secured to the lower engine compartment with the press plate through elastic rubber
bushing and hinge, and its outer end is connected to the steering knuckle through the ball stud pin which is attached
to the lower swing arm by 3 high intension bolts. The ball stud pin can be removed and replaced when it is worn.
The ball seat material is saturated polyester containing oil, featured in comparatively high intensity and wearability
and good self-lubrication performance. Proper amount of grease has been added during the assembly and there is
no need for additional filling during the normal operation.See the table for the front suspension technical parametersFront Suspension SystemFront Suspension System4-38Item
Shock absorber operating cylinder diameter /mm
Shock absorber piston rod diameter /mm
Shock absorber stroke/mm
Wheel camber
Wheel toe-in/mm
King pin inclination
King pin caster
Remark: the wheel alignment parameter in the table is at free load.Parameter
45
20
160
-0°30'±45'
1±2
10°0'±45'
2°0'±45' -
Camber angle
Left-right wheel deviation
Caster angle
Manual steering
Power steering
Left-right wheel deviation
Kingpin inclination
Manual steering
Power steering
Left-right wheel deviation-0°30' ± 45' (-0.5° ± 0.75°)
45'(0.75°) or smaller
1°46' ± 45' (1.76° ± 0.75°)
45' (0.75°) or smaller
9°54' ± 45' (9.90° ± 0.75°)
45' (0.75°) or lessFront Suspension SystemFront Wheel Alignment4-44Manual steering Power steering
Inside wheel 9-137.2°±2°
Outside wheel32°±2° 32°±2°5. Check the steering angle of wheel
Fully steer the wheel and measure the angle
The angle of wheel:
If the kingpin caster angle and the kingpin inclination be out of spec, check the damage and abrasion of
suspension parts after the correct adjustment of camber angle. If there is deviation with spec for right and left wheel angle, check the rack length of left and right ends.
6. Check the camber, caster and steering axle inclination angle
7. Adjust the camber angle
Notice:
Check the toe-in after adjust the camber angle
(1)Remove the front wheel
(2)Remove the two nuts under the shock absorber
If you need to reuse the bolts and nuts, apply the engine oil on
the nut thread
(3)Clear the mounting surface of the knuckle and shock absorber.Front
Inside
Outside
meter
locator-9-1
Front Suspension System-Front Strut Assembly4-4828. Mount the dust seals of left front suspension bracket
29. Mount the left front suspension bracket sub-assembly
30. Mount the front bracket onto the left front shock absorber nuts
(1) Hold the bracket by two bolts and a screwdriver or analogue.
Mount the new centre nut
Torque: 33N.m
Notice: DonÕt cause damage to the stud of suspension bracket.
(2) The special tool for remove
(3) Apply the multipurpose grease onto the suspension bracket
31. Mount the dust cap of left front suspension bracket
32. Mount the front stud assembly
(1) Mount the #2 suspension bracket
(2) Mount the front stud assembly by three nuts
Torque: 39N.m
(3) Mount the shock absorber onto the knuckle
(4) Film the engine oil onto the thread of two nuts
(5) Mount the two bolts and nuts
Torque: 132N.m
33. Mount the brake hose
Torque: 29N.m
34. Mount the front wheel
Torque: 103N.m
35. Mount the outside cover of vehicle neck
(1) Mount the outside cover of vehicle neck by 8 bolts
Torque: 5N.m
(2) Connect hose and harness (screen wiper)
(3) Mount the harness by bolts and two clips
36. Mount the linkage assembly of windshield wiper
37. Mount the ventilation hood of left vehicle neck
38. Mount the ventilation hood of right vehicle neck
39. Mount the engine hood and seals of vehicle neck
40. Mount the left front wiper arm
41. Mount the right front wiper arm
42. Check and adjust the front wheel alignmentMulti-purpose grease
I. Rear suspension structure description This model uses strut independent rear suspension with stabilizer bar.
Rear suspension consists of the parallel front and rear double transverse arms, trailing rod, rear stabilizer bar
and rear strut assembly. The shock absorber and cone coil spring are arranged eccentrically.
See the table below for the major technical parameters of the rear suspensionII. Symptom Table Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.Suspected Area
1. Tires (Worn or improperly inflated)
2. Wheel alignment (Incorrect)
3. Hub bearing (Worn or damaged)
4. Suspension parts (Worn or damaged)
1. Vehicle (Overloaded)
2. Spring (Stiffness small)
3. Shock absorber (Worn)
1. Tire (Worn or improperly inflated)
2. Wheel (not within specification)
3. Shock absorber (Worn)
1. Tire (Worn or improperly inflated)
2. Wheel alignment (Incorrect)
3. Shock absorber (Worn)
4. Wheel (not within specification)
1. Tire (Worn or improperly inflated)
2. Wheel alignment (Incorrect)
3. Shock absorber (Worn)
4. Suspension parts (Worn or damaged)Symptom
Off track
Body descent
Sways
Rear wheel shimmy
Abnormal tire wearRear Suspension System-Rear Suspension System4-55Item
Shock absorber operating cylinder diameter /mm
Shock absorber piston rod diameter/mm
Shock absorber stroke /mm
Camber
Toe in/mm
Remark: Wheel alignment parameter is at free loadParameter
38
12.4
250
-0°56' ± 45'
3 ± 3
Section 3 LH/RH Rear Suspension Coil SpringReplacement1. Remove rear wheel
2. Remove the wire of the wheel speed sensor(with ABS)
(1) Remove the connector of wheel speed sensor.
(2) Remove bolts and wheel speed sensor from rear axle
frame.
Notes:
Remove the right sensor wire by using same process as left.
3. Remove the load-sensing valve bracket (without ABS)
Remove two nuts and load-sensing valve bracket from the axle
bracket
4. Remove the proportioning valve and rear right brake tube
(1) Remove the proportioning valve and rear right brake tube by
the special tool
(2) Remove the clips
Notes: Don't reuse the clips
5. Remove the proportioning valve and rear left brake tube
Notes: use the same operations of the proportioning valve and
rear right brake tube to remove #3 rear brake tube.
6. Remove right parking brake cable assembly
Remove nuts and right parking brake cable assembly
assembly from rear axle frame
7. Remove left parking brake cable assembly
8. Loose the rear axle assembly
Loose two 2 boltsRear Suspension System-LH/RH Rear Suspension Coil Spring4-57
9. Remove the left rear shock absorber assembly
(1) Lift the rear axle at left sustainer by lifting jack
(2) Remove nuts, washers and left rear shock absorber assembly
10. Remove right rear shock absorber assembly
Notes: Remove right rear shock absorber assembly by using same
operations as left.
11. Remove left rear helical spring
Slowly lower lifting jack, remove helical spring and upper pads
and lower pads
12. Mount the left rear helical spring
(1) Mount the upper pad, let gap right on the helical spring.
(2) Mount lower pad, let and load the left helical sprig into the rear
axle.
13. Temporarily tighten the left rear shock absorber assembly
(1) Mount the left rear shock absorber onto rear axle frame when
lift jack.
(2) Temporarily tighten nut and washer.
14. Temporarily tighten the right rear shock absorber assembly.
Notes: Mount the right assembly by using same operations as left.
15. Mount right parking brake cable assembly
Mount right parking brake cable assembly by nuts
Torque: 5.4 N.m
16. Mount left parking brake cable assembly.
Tips: Mount the right assembly by using same operations as left.
17. Mount the proportioning valve and rear right brake tube
(1) Connect the brake hose with brake tube by special tool.
Torque: 1 5 N.m
(2) Mount clipsRear Suspension System-LH/RH Rear Suspension Coil Spring4-58
Rear Suspension System-LH/RH Rear Suspension Coil Spring4-5918. Mount rear right brake tube
Tips:
Mount the right assembly by using same operations as left.
19. Mount sideslip control sensor wire (with ABS)
(1) Tighten sideslip control sensor wire by bolts
Torque: 8.0 N.m
(2) Mount sideslip control sensor wire
Attention: Mount the right wire by using same operations as left.
20. Mount load-sensing valve bracket (without ABS)
Mount load-sensing valve bracket by two buts
21. Sufficiently tighten the rear axle frame assembly
(1) Stabilize the shock absorber assembly
Use the lifting jack and add 90Kg force on rear luggage
carrier if bolts can not be tightened at this point.
(2) Sufficiently tighten bolts
Torque: 82 N.m
22. Sufficiently tighten the left rear shock absorber assembly
Sufficiently tighten nuts
Torque: 49 N.m
23. Sufficiently tighten the right rear shock absorber assembly
Tips: Mount the right rear shock absorber by using same opera-
tions as left.
24. Release the air in the brake hose
25. Mount the rear wheel
Torque: 103 N.m
26. Check rear the wheel alignment
27. Check the wheel speed sensor signal of ABS( with ABS)
Power Steering System-
Steering Pipeline Component4-74 (7)Shut down the motor, and check whether there is any foam or
emulsification in the oil storage. If so, discharge the air
repeatedly.
(8)Check the level height, and check whether there is any
leakage.
2. Check the level height.
(1)Park the vehicle on the horizontal road.
(2)When the motor stops running, check the level height in the oil
tank. If necessary, add some more ATF DEXRONII steering
liquid.Replacement1. Discharge the steering liquid in the power steering system.
2. Remove the power steering high & low pressure oil pipes.
3. Loosen the connector screws of the high & low pressure oil pipes on the steering gear assembly, and loosen the
oil pipe clip.
4. Loosen the drive belt.
5. Remove the power steering pump strap support assembly from the motor. Remove the 3 coupling bolts between
the power steering pump strap support assembly and the motor.
6. Install the power steering pump strap support assembly.
Fasten the steering pump strap support assembly on the motor, and tighten the M10 bolt with a torque of 45-
79N.m and M8 bolt with a torque of 16-26N.m.
7. Install the drive belt, and make sure the position is correct.
8. Install the high & lower pressure oil pipes of the power steering gear assembly.
(1) Connect the connector screw of the high and low pressure oil pipe to the steering gauge with a torque of
19-33N.m.
(2) Fasten the low pressure oil pipe on the body front baffle plate with clip.
(3) Connect the connector screw of the high pressure oil pipe to the power steering pump with a torque of
19-33N.m.
(4) Connect the connector screw of the low pressure oil pipe to the oil tank with a torque of 19-33N.
m.
9. Discharge all air in the power steering pipe system, and check the pipe system whether there is any leakage.
10. Check the oil reservoir inner fluid level Tips: The level shall stay between the lowest level and the highest level.
(3) Check whether there is any foam or emulsification. If so, discharge the power steering liquid.NormalAbnormal