section 8 ISUZU TF SERIES 2004 Workshop Manual

3C-46 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:


Lower control arm


Bushing
Installation
1. Install rear bushing by using installer 5-8840-2124-
0.



Front
901RW053
2. Install front bushing by using installer 5-8840-
2123-0.



Front
901RW156



3. Install lower ball joint bolt.
4. Install torsion bar arm bolt.
5. Install lower control arm.
6. Install rear bolt.
7. Install cam bolt the hole and projection are
upward.
8. Install lower ball joint and tighten it to the specified
torque (12).
Torque: 127 N




m (12.9kg




m/94 lb ft)
9. Install shock absorber and tighten it to the
specified torque (13).
Torque: 93 N




m (9.5kg




m/69 lb ft)
10. Install stabilizer link and tighten it to the specified
torque (14).
Torque: 50 N




m (5.1kg




m/37 lb ft)
11. Install torsion bar arm bracket and tighten it to the
specified torque.
Torque: 116 N





m (11.8kg





m/85 lb ft)
12. Install Torsion bar, refer to Torsion Bar in this
section.
13. Install rear nut and tighten lower link nut finger-
tight (4).
NOTE: Apply oil to the thread.
NOTE: Tighten the nut or bolt with the parts in the
position shown in the illustration below.
Buffer clearance: 29.7 mm (1.17 in)
Torque: 235 N




m (24.0kg




m/174 lb ft)



450R100002

FRONT SUSPENSION 3C-47

14. Install cam plate and nut then tighten lower link nut
finger-tight.
NOTE: Apply oil to the thread.
NOTE: Tighten the nut (3) or bolt with the parts in the
position shown in the illustration below.
Buffer clearance: 29.7 mm (1.17 in)
Torque: 186 N




m (19.0kg




m/137 lb ft)
NOTE: Adjust the trim height. Refer to Front En
d
Alignment Inspection and Adjustment in Steering
section.



450R100002

3C-50 FRONT SUSPENSION

Lower Ball Joint
Lower Ball Joint and Associated Parts


RTW340LF001601
Legend

(1)
Bolt

(2)
Lower Ball Joint


(3) Nut

(4)
Nut and Cotter Pin


Removal
1. Raise the vehicle and support the frame with
suitable safety stands.
2. Remove wheel and tire assembly. Refer to Wheel
in this section.
3. Remove the tie-rod end from the knuckle. Refer to
Power Steering Unit in Steering section.
4. Remove the retaining ring from the front axle
driving shaft to release the shaft from hub. Refer to
Front Hub and Disc in Driveline/Axle section.
5. Support lower control arm with a jack.
6. Remove lower ball joint nut and cotter pin, then
use remover 5-8840-2005-0 to remove the lowe
r
ball joint from the knuckle.

3C-54 FRONT SUSPENSION
TROUBLESHOOTING
1. VIBRATION, SHOCK, AND SHIMMY OF STEERING WHEEL

Checkpoint Trouble Cause Countermeasure



Check front axle


Check wheel alignment


Check suspension ball joint


Check shock absorber or
attaching nut and bolt


Replace


Adjust


Replace


Replace or retighten


Check steering unit and
linkage


Faulty


Worn


Malfunction or loose


Check upper and lower link
bushings
Replace


Adjust


Worn


Incorrect

OK OK OK
NG NG NG NG NG NG
OK OK
Check vehicle trim height





Improperly adjusted or worn front
wheel bearing.


Worn or incorrectl
y adjusted wheel
bearing.
Replace; refer to Section 4C "Front
Wheel Drive"


Insufficientl
y tightened steeringgear housing.


Wear of steering linkage.


Excessive backlash due to
improper ad
justment of the steeringgear box.

Worn column bearing weakened
column bearing spring, or loose
clamp.
Replace; refer to Section 3B
"Steering"


Improper tire pressure.

Imbalance and deformation of frond
wheel.


Unevenl
y worn tire or insufficient
tightening of wheel nuts.
Replace; refer to Section 3E "Wheel
and Tires"

REAR SUSPENSION 3D-1
SECTION 3D
REAR SUSPENSION
TABLE OF CONTENTS
PAGE
Main Data and Specifications...........................................................................................3D- 2
Torque Specifications........................................................................................................ 3D- 3
Rear Suspension................................................................................................................3D- 4
General Description ...................................................................................................... 3D- 4
Leaf Spring and Shock Absorber ..................................................................................... 3D- 5
Leaf Spring and Associated Parts ............................................................................... 3D- 5
Removal .........................................................................................................................3D- 6
Inspection and Repair ................................................................................................... 3D- 7
Installation ..................................................................................................................... 3D- 8
Leaf Spring Assembly ....................................................................................................... 3D- 9
Disassembly .................................................................................................................. 3D- 9
Inspection and Repair ................................................................................................... 3D- 9
Reassembly ................................................................................................................... 3D- 10
Troubleshooting................................................................................................................. 3D- 11

WHEELS AND TIRES 3E-1

SECTION 3E
WHEELS AND TIRES
TABLE OF CONTENTS
PAGE
Main Data and Specifications ........................................................................................... 3E- 2
Torque Specifications ....................................................................................................... 3E- 3
Special Parts Fixing Nuts and Bolts ............................................................................ 3E- 3
Wheels and Tires ...............................................................................................................3E- 4
General Description ...................................................................................................... 3E- 4
Servicing ........................................................................................................................ 3E- 6
Disassembly and Reassembly ..................................................................................... 3E- 7
Inspection and Repair................................................................................................... 3E- 8
Troubleshooting ................................................................................................................3E- 10

3E-10 WHEELS AND TIRES

TROUBLESHOOTING
Typical examples of abnormal tire tread wear and major causes :

CAUTION:
Similar wear patterns can be caused by worn suspension parts, misalignment of wheels and tires, and
other suspension related problems.


Spotty wear - wear localized
on shoulder section. In
extreme cases, the tire
becomes polygonal in shape.
Tire or wheel out of
round or distorted.Hub or knuckle out
of round or distorted.Play in hub bearings
or ball joints.Rotating parts out of
balance.
Tread wear one-sided.
Rotating parts out of
balance.Tire or wheel out of
round.Hub or knuckle out
of round or distorted.
Localized tread wear.
Once spotty wear develops in
tread due to hard braking or
abrupt starting, localized wear
tends to be accelerated.

WORKSHOP MANUAL
TF SERIES
TRANSFER

SECTION 7D

TRANSFER CASE 7D-1

SECTION 7D
TRANSFER CASE
TABLE OF CONTENTS
PAGE
Service Precaution .......................................................................................................... 7D – 2
General Description ........................................................................................................ 7D – 3
Transfer Rear Oil Seal .................................................................................................... 7D – 4
Transfer Rear Oil Seal and Associated Parts ............................................................ 7D – 4
Removal ........................................................................................................................ 7D – 4
Installation .................................................................................................................... 7D – 4
Transfer Case Assembly ................................................................................................ 7D – 6
Transfer Case Assembly and Associated Parts ........................................................ 7D – 6
Removal ........................................................................................................................ 7D – 7
Installation .................................................................................................................... 7D – 7
Transfer Control Unit ...................................................................................................... 7D – 10
Removal ........................................................................................................................ 7D – 10
Installation .................................................................................................................... 7D – 10
Transfer Disassembly ..................................................................................................... 7D – 11
Removal ........................................................................................................................ 7D – 11
Inspection and Repair .................................................................................................. 7D – 20
Inspection and Repair (Transfer Case Assembly) ..................................................... 7D – 20
Reassembly .................................................................................................................. 7D – 24
Main Data and Specifications ........................................................................................ 7D – 33
Special Tools ................................................................................................................ 7D – 36

TRANSFER CASE 7D-33

Main Data and Specifications
General Specifications
Type Synchronized type gears shifting between the 2 and 4 wheel drive mode.
Planetary type gears shifting between “low" and “high".
Control method Remote control with the button switch on the instrument panel for gears
shifting among “2H" , “4H" and “4L".
Gear ratio High; 1.000
Low; 2.482
Oil capacity 1.3 lit. (1.37 U.S. quart)
Type of lubricant BESCO GEAR OIL TRANSAXLE (5W-30)
Refer to chart in Section 0

Torque Specifications
Nm (kgm/lb ft)

RTW47DLF000201