2004 ISUZU TF SERIES air suspension

FRONT SUSPENSION 3C-13
Disassembly





1. Install the support fixture (5-8840-0595-0) to the base (5-
8840-003-0).
2. Install the upper adapter (5-8840-0597-0) and the lower
adapter (5-8840-0596-0) to the base and support fixture
assembly.
3. Install the shock absorber assembly to the support fixture.
4. Remove the nut with spring in place.
CAUTION:
Take care not to apply excessive force to the nut during
removal.


CAUTION :
The shock absorbers have been charged with gas at the
factory. Exposure to high temperatures or an open flame
can result in a dangerous explosion.
Keep the shock absorbers away from high temperatures
and open flames.



INSPECTION AND REPAIR
Make all necessary adjustments, repairs, and part replacements if wear, damage, or other problems are discovered
during inspections.




Visual Check
Inspect the following parts for wear, damage or other abnormal
conditions.


Shock absorber


Rubber bushing


Coil spring

3C-16 FRONT SUSPENSION

Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the following parts :


Stabilizer bar


Rubber bushing


Link ball joint
Installation
1. Install rubber bushing.
2. Install stabilizer bar.
3. Install bracket and bolt (5), then tighten it to the
specified torque.
Torque: 25 N




m (2.5kg




m/18 lb ft)
4. Install link.
5. Install nut (3), (4), then tighten it to the specified
torque.
Torque: 50 N




m (5.1kg




m/37 lb ft)

3C-18 FRONT SUSPENSION
6. Remove the stabilizer link nut. Right and left.
7. Remove the wheel speed sensor from the knuckle.
8. Remove back plate.
9. Remove lower ball joint by using remover 5-8840- 2017-0.
CAUTION: Be careful not to damage the ball joint
boot.

P1010009
10. Remove upper ball joint by using remover 5-8840-
2017-0.
CAUTION: Be careful not to damage the ball joint
boot.

P1010011
11. Remove knuckle.

Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the following parts:


Knuckle


Knuckle arm
Installation
1. Install knuckle assembly.
2. Install upper ball joint and tighten the nut to the
specified torque, with just enough additional torque
to align cotter pin holes. Install new cotter pin (1).
Torque: 98 N






m (10.0kg






m/72 lb ft)
3. Install lower ball joint and tighten the nut to the specified torque, with just enough additional torque
to align cotter pin holes. Install new cotter pin (4).
Torque: 147N






m (15.0kg






m/108 lb ft)
4. Install back plate.
5. Install wheel speed sensor.
6. Install stabilizer link nut. Right and left.

3C-20 FRONT SUSPENSION
5. Remove nut (8).
6. Remove upper ball joint by using remover 5-8840-
2017-0.
CAUTION: Be careful not to damage the ball joint
boot.

P1010005
7. Remove nut (3).
8. Remove bolt(1).
9. Remove bolt (10) and nut (9).
10. Remove upper ball joint.
11. Remove upper control arm assembly.
12. Remove bushing.
Inspection and Repair
Make necessary parts replacement if wear, damage,
corrosion or any other abnormal conditions are found
through inspection.
Check the following parts:


Upper control arm


Bushing
Installation
1. Install bushing by using installer 5-8840-0257-0
and 5-8840-2327-0.


P1010062
2. Install upper ball joint and tighten it to the specified
torque (9).
Torque: 31 N






m (3.2kg






m/23 lb ft)
3. Install nut (6) and cotter pin then tighten the nut to the specified torque, with just enough additional
torque to align cotter pin holes. Install new cotte
r
pin.
Torque: 98 N






m (10.0kg







m/72 lb ft)
4. Install upper control arm assembly.
5. Install bolt (1) and nut (3).
NOTE: Apply oil to the thread.
NOTE: Tighten the bolt (1) with the parts in the position
shown in the illustration below.
Buffer clearance: 25.9 mm (1.02 in)
Torque: 137 N






m (14.0kg






m/101 lb ft)





RTW340SH001301-X
6. Install nut (12).
7. Install nut (11).

3C-22 FRONT SUSPENSION
4. Support lower control arm with a jack.
5. Remove the nut (10).
6. Remove the nut (8).
7. Remove the shock absorber lower end from the
lower control arm.
8. Remove the lower ball joint from the lower control arm.
9. Remove nut (4) and cam plate.
10. Remove cam bolt.
11. Remove lower control arm.
12. Remove bushing.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the following parts:


Lower control arm


Bushing
Installation
1. Install rear bushing by using installer 5-8840-
0257-0 and 5-8840-2327-0.


P1010063
2. Install lower control arm.
3. Install cam bolt.
4. Install lower ball joint and tighten it to the specified
torque (9).
Torque: 127 N






m (12.9kg






m/94 lb ft)
5. Install shock absorber and tighten it to the specified torque (5).

NOTE: Apply oil to the thread.
NOTE: Tighten the nut (4) with the parts in the position
shown in the illustration below.
Torque: 137 N






m (14.0kg






m/101 lb ft)




RTW340SH001301-X
6. Install stabilizer link and tighten it to the specified
torque (10).
Torque: 50 N






m (5.1kg






m/37 lb ft)
7. Install nut (4) and cam plate and tighten lower link nut finger-tight.
NOTE: Apply oil to the thread.
NOTE: Tighten the nut (4) with the parts in the position
shown in the illustration below.
Buffer clearance: 25.9 mm (1.02 in)
Torque: 186 N






m (19.0kg






m/137 lb ft)





RTW340SH001301-X
8. Install nut (8) and cotter pin then tighten the nut to
the specified torque, with just enough additional
torque to align cotter pin holes. Install new cotte
r

FRONT SUSPENSION 3C-25

P1010005
5. Remove bolt (1) and nut (3).
6. Remove upper ball joint.
Inspection and Repair
Make necessary parts replacement if wear, damage,
corrosion or any other abnormal conditions are found
through inspection.


Inspect the lower end boot for damage or grease
leak. Move the ball joint as shown in the figure to
confirm its normal movement.


Inspect screw/taper area of ball for damage.


If any defects are found by the above inspections,
replace the ball joint assembly with new one.




450R300030


After moving the ball joint 4 or 5 times, attach nut
then measure the preload.
Starting torque: 1.3-3.2 N






m (0.13-0.33kg






m/0.9-
2.4 lb ft)







450RS024
If the above limits specified are exceeded, replace the
ball joint assembly.
Installation
1. Install upper ball joint.
2. Install bolt (1) and nut (3), then tighten them to the specified torque.
Torque: 31N






m (3.2kg






m/23 lb ft)
3. Install nut and cotter pin, then tighten the nut to the specified torque with just enough additional torque
to align cotter pin holes. Install new cotter pin (4).
Torque: 98 N






m (10.0kg







m/72 lb ft)
4. Install nut (5), then tighten to the specified torque. Torque: 50 N






m (5.1kg






m/37 lb ft)

FRONT SUSPENSION 3C-27
CAUTION: Be careful not to damage the ball joint
boot.


P1010003
6. Remove nut (3).
7. Remove bolt (5).
8. Remove lower ball joint.
Inspection and Repair
Make necessary parts replacement if wear, damage,
corrosion or any other abnormal condition are found
through inspection.


Inspect the lower end boot for damage or grease
leak. Move the ball joint as shown in the figure to
confirm its normal movement .


Inspect screw/taper area of ball for damage.


If any defects are found by the above inspections,
replace the ball joint assembly with new one.





450RS026

After moving the ball joint 4 or 5 times, attach nut
then measure the preload.
Starting torque: 2.5-6.4 N






m (0.26-0.65kg






m/1.9-
4.7 lb ft)






450RS024


If the above limits specified are exceeded, replace
the ball joint assembly.
Installation
1. Install lower ball joint.
2. Install bolt (5).
3. Install nut (3) and tighten it to the specified torque. Torque: 127 N






m (12.9kg






m/94 lb ft)
4. Install ball joint nut, then tighten it to the specified torque with just enough additional torque to align
cotter pin holes. Install new cotter pin (2).
Torque: 147 N






m (15.0kg






m/108 lb ft)
5. Install nut (4), then tighten to the specified torque. Torque: 50 N






m (5.1kg






m/37 lb ft)

3C-28 FRONT SUSPENSION

Bump Rubber
Bump Rubber and Associated Parts
RTW340LF002601
Legend

(1)
Bolt



(2)
Bump Rubber


Removal
1. Raise the vehicle and support the frame with
suitable safety stands.
2. Remove bolt.
3. Remove bump rubber.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the following parts :


Bump Rubber
Installation
1. Install bump rubber.
2. Install bolt (1), then tighten it to the specified
torque.
Torque: 42 N




m (4.3kg




m/31 lb ft)