Haima M3. Chassis System. Service Manual - part 3

 

Suspension system 2D-4 

 

1.  As shown in the figure, align the mark of 

lower swing arm to small bump behind lower 
swing arm bush. 

 

 

2.  Install the lower swing arm on SST special 

service tool. 

3.  Press new bush of lower swing arm with SST 

special service tool. 

 

 

Keypoints for installing the lower swing front 
bush 

Press a new bush into swing arm body with SST 
special service tool. 

 

Keypoints for installing the dust cover 

1.  Wipe off the grease from the ball head bolt. 

2.  Fill the grease into the new dust cover. 

3.  Press the dust cover on the ball joint with SST 

special service tool. 

4.  Wipe off the excessive grease. 

 

Check of front lower swing arm 

1.  Remove lower swing arm from the vehicle. 

2.  Check it for damages, cracks and bends. 

3.  Check the rotation torque of ball joint. 

(1)  Turn the ball joint five times. 

(2)  Connect SST special service tool to ball head 

bolt, and measure its rotation torque with a 
tension meter. If unqualified, replace the 
lower swing arm. 

Pre-load of ball joint: 1.0 -4.9N.m {0.1-0.5kgf.cm, 
0.74-3.6in.lbf} 

Reading of tension meter: 10-49N {1-5kgf, 0.225-
1.1lbf} 

 

 

Removal/installation of front transverse 
stabilizer bar 

1.  Remove the front suspension crossbeam 

assembly (refer to the removal/installation of 
R-9 front suspension crossbeam assembly). 

2. Remove front control connecting rod 

assembly lower fixing nut or lower bush 
assembly ①. 

3. Remove front control connecting rod 

assembly and stabilizer bar connecting nut ②. 

4.  Remove front transverse stabilizer bar fixing 

plate nut, front transverse stabilizer bar fixing 
plate, and stabilizer bar rubber sleeve ③. 

5.  Install it in the reverse sequence of removal. 

Small bump

Mark

 

Press in

 

Hydraulic machine is
pressed in by force 

Special tools

Special tools

Front bush

 

Suspension system 2D-5 

 

 

Keypoints for installing front transverse 
stabilizer bar fixing plate 

1.  Apply the rubber grease to inner surface of 

stabilizer bar rubber sleeve. 

2.  In case of installing the rubber sleeve, make 

the cut of rubber sleeve towards the rear of 
vehicle, and align its boss to the notch of front 
beam. 

3.  Front transverse stabilizer bar fixing plate. 

 

Removal/installation of front suspension 
crossbeam assembly 

1.  Remove the rubber lug of exhaust pipe (refer 

to removal/installation of F exhaust system). 

2.  Remove the engine mounting arm (refer to the 

keypoints for removing B engine support 
beam). 

3.  Remove the steering gear and tie rod(refer to 

removal/installation of N steering gear and tie 
rod). 

4.  Remove the front suspension lower swing 

arm assembly(refer to removal/installation of 
R-6 front suspension lower swing arm 
assembly). 

5.  Remove front transverse stabilizer bar(Refer 

to removal/installation of R-8 front transverse 
stabilizer bar). 

6.  Remove the fixing bolt ①of front suspension 

crossbeam assembly. 

7.  Install the assembly in the reverse sequence of 

removal. 

8.  Check the location of front wheel, and adjust 

its location if necessary. 

 

Keypoints for removing the front suspension 
crossbeam assembly 

1.  Support the front suspension crossbeam 

assembly with a jack, and remove the bolts 
connected to vehicle body. 

Bolt torque: 141 to 223N.m {14.1 to 22.3 kgf.m, 
104 to 165in.lbf } 

2.  Remove the front suspension crossbeam 

assembly. 

Rear suspension  

Removal/installation of rear shock 
absorber and spring 

Note: 

In case of not removing ABS anti-lock brake 
system wheel speed sensor first, carry out the 
following operation procedures. If the sensor is 
inadvertently pulled, it may cause the broken 
circuit of wire. Before carrying out the following 
operation procedures, remove ABS wheel speed 
sensor from axle side, and fix it in appropriate 
position to prevent the sensor from inadvertent 
pulling during the repair of vehicle. During the use 
of jack, be sure to avoid the damages of brake pipe 
and brake hose. 

1.  Remove them in the sequence shown in the 

table. 

2.  Install them in the reverse sequence of 

removal. 

Stabilizer bar rubber 

sleeve

 

Front

 

Notch

 

Boss

 

Stabilizer bar fixing plate 

 

Suspension system 2D-6 

 

 

 

1 Hexagon 

flange 

bolt 

2 Self-lock 

nut 

3  Upper mounting cover of rear shock 

absorber 

4 Upper 

bush 

5 

Rear shock absorber assembly 

Check of rear shock absorber 

Check rear shock absorber by adopting the same 
method as that of front shock absorber (refer to the 
check of R-6 front shock absorber). 

Scrapping of rear shock absorber 

Handle rear shock absorber by adopting the same 
method as that of front shock absorber (refer to the 
scrapping of R-6 front shock absorber). 

Removal/installation of rear spiral spring 

1.  Remove rear shock absorber assembly. 

2.  Remove it in the sequence shown in the table. 

3.  Install it in the reverse sequence of removal. 

 

 

1 Hexagon 

flange 

bolt 

2 

Spiral spring and upper/lower rubber 

mount 

3 

Rear spiral spring lower rubber mount 

4 

Rear spiral spring 

5 

Rear spiral spring upper rubber mount 

 

Notes for mounting rear spiral spring 

Install the spiral spring with its open end in front 
of vehicle, and ensure that the opening of rear 
spiral spring lower rubber mount is always 
clamped. 

Warning 

It’s very dangerous to install the spiral spring, 
because the spiral spring may fly off and lead to 
serious injury or death. 

Removal/installation of torsion beam 
integral axle 

1.  Lift the vehicle to its appropriate position, and 

remove the tire(refer to the installation 
sequence of 2E-8 wheel). 

2.  Remove the rear brake drum assembly (refer 

to Section 2E Wheel and Tire). 

3.  Jack up rear torsion beam assembly with a 

screw block. 

4.  Remove rear shock absorber assembly (refer 

to removal/installation of R-10 rear shock 
absorber and spring). 

5. Remove rear spiral spring (refer to 

removal/installation of R-11 rear spiral 
spring). 

6.  Remove it in the sequence shown in the table. 

7.  Install it in the reverse sequence of removal. 

 

 

1 Hexagon 

flange 

bolt 

2 

Rear torsion beam assembly 

 

Steering system 2F-1 

 

Chapter 14 

Steering system

 

 

General procedures ................................................................................................................................. 2E-2 

Attentions for steering system........................................................................................................... 2E-2 

Removal/installation of power steering assembly............................................................................. 2E-2 

Disconnection and connection of joint.............................................................................................. 2E-2 

Engine speed sensing power steering..................................................................................................... 2E-2 

Exhaustion of air ............................................................................................................................... 2E-2 

Check of power steering oil .............................................................................................................. 2E-2 

Check of steering wheel and steering column................................................................................... 2E-4 

Removal and installation of steering wheel and steering column ....................................................... 2E-5 

Removal and installation of steering gear and connecting rod.......................................................... 2E-9 

Disassembly of steering gear and connecting rod ........................................................................... 2E-11 

Check of steering gear and connecting rod ..................................................................................... 2E-14 

Assembling of steering gear and connecting rod ............................................................................ 2E-16 

Removal and installation of power steering pump .......................................................................... 2E-20 

Disassembly and assembly of power steering pump....................................................................... 2E-21 

 

 

 

 

Steering system 2F-2 

 

General procedures 

Attentions for steering system 

For removal/installation of wheel and tire 

The installation steps of wheel and tire are not 
described in this chapter. 

After removing the wheel, its tightening torque 
during the reinstallation: 110N.m(100 to 120 N.m). 

Removal/installation of power steering 
assembly 

If the power steering oil pipe is broken during the 
operation, add in some 

ATF-III or DEXRON-

III power steering oil after completing the 
operation

. Bleed the air out of power steering 

pipe, and check it for leakage. 

Disconnection and connection of joint 

Before any work to contact the plug by hands, 
disconnect the negative cable of battery. The cable 
can be reconnected only after finishing the work. 

Engine speed sensing power 
steering 

Exhaustion of air 

1.  Check the level of power steering oil(refer to 

the check of power steering oil, and check of 
liquid level). 

2.  Jack up the front end of vehicle with a jack, 

and support it with a safety support. 

3.  Turn the steering wheel to left or right 

furthest several times at the shutdown state of 
engine. 

4.  Check the level of power steering oil again. If 

its level is reduced, refill the power steering 
oil. 

5.  Repeat Steps 3-4 until the liquid level 

stabilizes at the specified value. 

6.  Lay down the vehicle. 

7.  Start the engine, and keep it idling. 

8.  Turn the steering wheel to left or right 

furthest several times. 

9.  Confirm that the power steering oil shall have 

no bubbles and its level shall not be reduced 
any longer. 

  If its level has been reduced, add in the power 

steering oil as per the demands, and repeat 
Steps 8 and 9.  

Check of power steering oil 

Check of oil level 

Check the level of power steering oil. 

If necessary, add in the power steering oil up to 
the specified level. The model of such power 
steering oil is 

ATF-III or DEXRON-III.

 

 

 

 

Steering system 2F-3 

 

 

 

 

 

Leakage check of power steering oil 

Note: 

●

  In case of keeping the steering wheel in the 

extreme steering position for over 5s, the 
temperature of power steering oil will be 
increased to an extreme value, and produce 
adverse influences on the power steering pump. 

1.  Start the engine, and idle it. 

2.  Turn the steering wheel to left or right furthest 

several times to make the oil pressure produced 
in every position. 

Note: 

●

  The parts shown with the arrows of figure may 

be leaked. 

3.  Check them for leakage. 

 

 

1.  Install the special tool as shown in the figure. 

2.  Disconnect the high-pressure pipe from the oil 

pump, and connect to its special tool.  

Tightening torque:40-50N·m{4.0-5.0kgf.m} 

3.  Bleed the air out of the system. 

4.  Fully open the valve of pressure gauge. 

Check of power steering hydraulic force

 

 

 

5.  Start the engine, and turn the steering wheel to 

left or right furthest to make the temperature of 
power steering oil up to 50-60°C{122-140°F}. 

6.  Fully close the valve of pressure gauge.  

Note: 

If the valve is closed for over 5s, the temperature of 
power steering oil will be increased to an extreme 
value, and produce adverse influences on the power 
steering pump.  

7.  Increase the engine speed up to 1000-1500rpm, 

and measure the pressure of power steering oil. 

`

 

  If the hydraulic pressure is not within the 

specified range, it’s required to repair or 
replace the power steering pump assembly. 

Hydraulic pressure of power steering oil pump: 

5.7-6.4Mpa{58.0-65.0kgf/cm

2

,826-928psi} 

Note: 

● 

In case of keeping the steering wheel in the 
extreme steering position for over 5s, the 
temperature of power steering oil will be 

Thermometer

 

Pressure gauge 

Valve fully closed

Valve iron

 

 

Steering system 2F-4 

 

increased to an extreme value, and produce 
adverse influences on the power steering pump.

 

8.  Fully open the valve of pressure gauge, and 

increase the engine speed up to 1,000-
1,500rpm. 

9.  Turn the steering wheel to left or right furthest, 

and then measure the hydraulic pressure 
produced in the gear chamber. 

  If the pressure is not within the specified range, 

it’s required to repair or replace the steering 
gear assembly. 

Hydraulic pressure in gear chamber (pump 
chamber): 

5.7-6.4Mpa{58.0-65.0kgf/cm

2

,826-928psi} 

10.  Remove the special tool. 

11.  Install and tighten the high-pressure pipe, and 

tighten it up to the specified torque. 

Tightening torque: 

40-50N.m{4, 0-5. 0kgf.m} 

12.  Bleed the air out of system. 

 

Check of steering wheel and steering column 

Check of steering wheel clearance 

Stop the wheel directly in front, turn the steering wheel lightly to left or right, and confirm whether its 
oscillation amplitude is within the specified range. 

●

  If the clearance is not within the specified range, it may be caused by wears of steering knuckle or 

excessive clearance of steering gear, and apply the necessary corrections to it. Clearance: 0-30mm{0-1. 
18in}. 

 

Check of steering wheel loosening 

Shake the steering wheel in the shown direction, 
check the steering column bearing sleeve, steering 
shaft hinge for oscillation, steering wheel for 
loosening or steering column for loosening, etc. 

 

 

 

Thermometer

 

Pressure gauge 

Valve fully 

closed 

 

Steering system 2F-5 

 

Check of steering wheel steering force 

1.  Check the following items. 

• 

Tire size and tire pressure. 

• 

Level of power steering oil. 

• 

Slack of drive belt. 

2.  Stop the wheel on firm or level road surface, 

and make the wheel directly in front. 

3.  Start the engine, and increase the temperature 

of power steering oil up to 50-60°C{122-
140°F}. 

4.  Remove the safety airbag module. 

Warning: 

●

  For removal/installation of safety airbag 

module after the check, refer to 
removal/installation of T safety airbag module 
on driver’s side. 

5.  Measure the steering force F with a torque 

wrench. 

●

  If not within the specified range, pay attention 

to the following items: 

－

 Existence of air in the system 

－

 Hose or joint for leakage 

－

 The performances of power steering pump and 

gear are perfect.  

Steering force: 7.8N·m{78kgf }.cm. 

Note: 

● 

In order to judge the conformity of results, 
check the steering operation of another 
vehicle with the same model with the same 
method under the same conditions, and 
compare the test results. 

● 

The rotation torque of steering wheel varies 
under the different conditions, as said below: 

－

 Road conditions, e.g. dry or wet road surface, 

asphalt or cement road surface. 

－

 Tire conditions, e.g. tire patterns, wears, tire 

pressure, etc. 

Removal and installation of steering wheel and steering column 

Warning: 

●

  Incorrect handling of safety airbag module 

will make the safety airbag suddenly opened, 
and it may cause the personal injury, so it’s 
required to handle the safety airbag. Please 
first read “Warning for Safety Airbag” (refer 

to the repair warning for safety airbag system.) 

1.  Remove them in the sequence shown in the 

table. 

2.  Install them in the reverse sequence of 

removal. 

 

 

Steering system 2F-7 

 

 

 

1

 

Safety airbag: refer to removal/installation of safety airbag system,T dirver’s safety 
airbag;

 

2

 

Lock nut

 

3

 

Steering wheel: refer to its removal instructions; refer to its installation instructions.

 

4

 

Steering column cover

 

5

 

Clock spring

 

6

 

Combination switch

 

7

 

Lower cover plate

 

8

 

Steering column: refer to its installation instructions.

 

9

 

Steering column lock sleeve

 

10

 

Steering column mount

  

11

 

Removed assembly of steering column: refer to its removal instructions.

 

 

Keypoints for removing the steering wheel 

Note: 

●

  Don’t hit the steering shaft with a hammer 

while removing the steering wheel, thus it will 
cause the collapse of steering column. 

1.  Make the wheel directly in front, and stop the 

vehicle. 

2.  Remove the steering wheel with an appropriate 

puller. 

 

 

Keypoints for removal of steering lock bolt 
and support 

1.  Make a groove in the lock bolt with a hammer 

and chisel. 

2.  Remove the bolt with a straight screwdriver. 

3.  Disassemble the steering lock assembly. 

 

 

Keypoints for removing the steering 
column external assembly 

Note: 

  During the replacement of its external 

assembly, its coil must be replaced. 

1.  Turn the ignition key to “ACC” position. 

2.  Press down the lock button, and pull out the 

steering column external assembly. 

 

 

Steering system 2F-8 

 

 

Keypoints for installing the steering lock 
bolt and support 

1.  Install the steering lock assembly on the 

steering shaft. 

2.  Confirm the correct locking operation. 

3.  Install the steering lock bolt. 

4.  Tighten the bolt until its head falls off. 

 

 

Keypoints for installing the steering shaft 

Note: 

●

 Don’t shake the steering shaft in axial 

direction. 

1.  Tighten the bolt A. 

2.  After tightening the bolt B, tighten the bolt C. 

 

Keypoints for installing the steering wheel 

1.  Adjust the sensing spring (refer to the 

adjustment of safety airbag system sensing 
spring). 

2.  Make the wheel directly in front, and install the 

steering wheel. 

 

 

Check of steering shaft 

1.  Check the following items, and replace the 

steering shaft assembly if necessary: 

－

 Steering column bearing for damages. 

－

 Length of steering shaft. 

Length: 813. 0-817. 0 mm{32. 0-32. 2in} 

 

 

2. Inclination 

operation 

●

  Confirm that the adjusting lever can move 

stably from its unlocked position to locked 
position. 

●

  Confirm that the steering shaft isn’t loosened 

when the adjusting lever is locked. 

 

 

 

 

 

Lock

 

Adjusting lever

 

Unlock

 

Steering system 2F-9 

 

Removal and installation of steering gear 
and connecting rod 

Note: 

●

  In case of not removing the wheel speed 

sensor from ABS system, carry out the 
following operation. When the wire is 
wrongly pulled, it may cause the broken 
circuit of wire. Before carrying out the 
following operation procedures, remove 
wheel speed sensor (from axle side), and 
place it in appropriate position to prevent it 

from wrong pulling during the repair of 
vehicle.  

1.  Remove front exhaust pipe fixing rubber 

sleeve. (refer to the exhaust system, 
removal/installation of exhaust system). 

2.  Remove it in the sequence shown in the table. 

3.  Install it in the reverse sequence of removal. 

4.  After installing it, check the toe-in of wheel 

(refer to the location of wheel, location of 
front wheel). 

 

 

 

1 

Bolt(telescopic shaft) refer to its removal instructions; refer to its installation instructions.

2 Split 

pin 

3 Flange 

nut 

4 

Steering tie rod tail end ball head: refer to its removal instructions; refer to its removal 
instructions. 

5 

Oil return pipe 

6 

High-pressure oil pipe 

7 Bolt(reinforced 

plate) 

8 Nut(reinforced 

plate) 

9 

For steering gear and joint, refer to their removal instructions. 

10 Dust 

cover 

 

 

Steering system 2F-10 

 

 

Keypoints for removing the bolt (telescopic shaft)

Make the aligning marks of gear shaft and gear 
chamber for the purpose of correct installation. 

 

Keypoints for installing the bolt (telescopic shaft)

After aligning the marks, install the intermediate 
shaft and bolt. 

 

 

Keypoints for removing the Steering tie rod tail 
end ball head 

1.  Remove the end rod nut. 

2.  Remove the end post from steering knuckle 

with a special tool. 

 

Keypoints for removing the steering gear and 
joint 

Draw the steering gear and joint out of right side. 

 
 

 
 

 

 

 

Steering system 2F-11 

 

Disassembly of steering gear and connecting rod 

1.  Disassemble it in the sequence shown in the table. 

 

1 

Heat shield 

 

21

Assembly of control valve 

2 

Oil pipe 1 

 

22

Seal ring 

3 

Oil pipe 2 

 

23

Gear shaft 

4 

Steering tie rod tail end 

 

24

Valve chamber assembly 

5 

Lock nut(end post head) 

 

25

Upper bearing: refer to its disassembly 
instructions. 

6 

Spring clip 

 

26

Oil seal: refer to its disassembly instructions. 

7 

Dust jacket wire 

 

27

Valve chamber 

8 Dust 

jacket 

 

28

Supporting block: refer to its disassembly 
instructions. 

9 

Steering tie rod: refer to its disassembly 
instructions. 

 29

U 

tie 

10 Washer 

 

30

“O” 

ring 

11 

Lock nut (adjusting cover) : refer to its 
disassembly instructions. 

 31

Steering 

rack 

12 

Adjusting cover: refer to its disassembly 
instructions. 

 32

Seal 

ring 

13 

Hold down spring 

 

33

“O” ring 

14 Limit 

washer 

 

34

Inner guide sleeve: refer to its disassembly 
instructions. 

15 

“O”ring 

 

35

Oil seal: refer to its disassembly instructions. 

16 

Dust cover 

 

36

Fixed support 

17 

Socket bolt 

 

37

Cushion block 

18 

Assembly of gear shaft and gear chamber: 
refer to its disassembly instructions. 

 38

Rubber cushion block: refer to its disassembly 
instructions. 

19 

Gear shaft assembly  

 

39

Gearbox 

20 

Snap ring: refer to its disassembly 
instructions. 

 40

Steering tie rod ball head gasket: refer to its 
disassembly instructions. 

 

Steering system 2F-12 

 

 

 

Keypoints for disassembling the steering tie rod

1.  Remove the dust jacket. 

2.  Remove the steering tie rod. 

 

 

Keypoints for disassembling the lock nut 
(adjusting cover) 

Remove the lock nut with a special tool. 

 

 

Assembly of gear shaft and valve chamber 

1.  Remove the bolts connected to gear shaft and 

valve chamber (2 pcs). 

 

 

2.  As shown in the figure, grasp the gear shaft, 

and pull out the assembly of gear shaft and 
gear chamber. 

 

 

Keypoints for disassembling the gear shaft 
assembly 

●

  If the gear shaft is difficult to pull out, remove 

it by pressing it down. 

Push the gear shaft out of valve chamber, as shown 
in the figure. 

 

Steering system 2F-13 

 

 

 

  

Keypoints for disassembling the snap spring 

Remove the snap spring carefully, and don’t 
damage the gear shaft assembly. 

 

 

Keypoints for disassembling the upper bearing 
and oil seal 

1.  Install the special tool as shown in the figure. 

2.  Press out the oil seal and upper bearing with a 

special tool, and don’t press the edges of valve 
chamber. 

 

 

Keypoints for disassembling the hoop 

Drill the surface part padded with anvil by adopting 
a drill. 

 

 

Note: 

●

  Pull out the hoop carefully, and don’t damage 

the U tie. 

●

  Remove the hoop with a special tool. 

 

 

 

Snap spring

 

Guide shaft 

shoulder

 

 

Steering system 2F-14 

 

 

 

Keypoints for disassembling the inner guide 
sleeve and oil seal 

1.  Attach the special tool to the side of valve. 

2.  Install the special tool into the gear chamber. 

3.  Press out the oil seal and inner guide sleeve. 

 

 

Keypoints for removing the rubber cushion 
block 

Press the rubber cushion block out of gear chamber 
with a special tool and press.  

 

 

Keypoints for disassembling the steering tie rod 
end gasket 

1.  Place and clamp the end of tie rod in the 

fixture. 

2.  Clamp the end of tie rod at the shown angle, 

and align the chisel to end shim. 

3.  Hit the chisel with a hammer to remove the end 

shim.  

 

Check of steering gear and connecting rod 

Check of rack 

1.  Check the rack for fracture, damages or broken 

teeth, etc. 

  If any, replace the rack. 

2.  Measure the radial runout of rack. If not within 

the specified range, replace the rack. Radial 
runout 

Near to A point: 0.15mm{0.006 in} 

Near to B point: 0.20mm{0.008 in}