ISUZU TF SERIES 2004 Workshop Manual

FRONT SUSPENSION 3C-59
5. NOISES

Checkpoint Trouble Cause Countermeasure



Lubricating oil and grease for
upper and lower ball joint


Shock absorber


Stabilizer fixing nuts and bolts


Upper and lower links
bushings


Replace


Replace


Retighten


Replace


Insufficient


Faulty


Loose


Worn


Shock absorber fixing nut and
bolt

Retighten

Loose

Continued on the next pageOK OK OK OK
NG NG NG NG NG
OK

Upper and lower ball joint

Replace

Damaged
NG

3C-60 FRONT SUSPENSION
Checkpoint Trouble Cause Countermeasure

Steering linkage and steering
gearReplaceWorn
AdjustImproper OK
NG NG
OKTire pressure Continued from the previous page
Steering unit fixing bolts and
linkageRetightenLoose
Adjust or replaceIncorrect adjustment or
abrasion OK
NG NG
OKFront wheel bearing
Lubricating oil and grease to
steering linkageReplaceInsufficient NG OK

FRONT SUSPENSION 3C-61
6. EXCESSIVE STEERING WHEEL PLAY

Checkpoint Trouble Cause Countermeasure



Front wheel bearing


Steering linkage


Adjust or replace


Replace


Incorrect adjustment or
abrasion


Worn


Replace

Worn

NG NG NG
OK OK Upper, and lower links,
bushing (4

2 Except high
ride suspension)

3C-62 FRONT SUSPENSION
7. GRATING TIRE NOISE

Checkpoint Trouble Cause Countermeasure

Tire pressure
Knuckle spindle and steering
linkage
Adjust
Replace
Improper
Deformed
Suspension fixing boltReplace
Adjust
Loose
Incorrect
OK
NG NG NG NG
OK OKWheel alignment

FRONT SUSPENSION 3C-63
8. EXCESSIVELY OR PARTIALLY WORN TIRE

Checkpoint Trouble Cause Countermeasure

Brake adjustment
Wheel alignment
Adjust
Adjust
Incorrect
Incorrect
Front wheel bearingReplace
Adjust
Faulty
Improper
OK
NG NG NG NG
OK OKTire pressure
Tire rotationRotate tires at recomended
intervalsNot rotated OK
NG

3C-64 FRONT SUSPENSION
MEMO

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

3D-2 REAR SUSPENSION
MAIN DATA AND SPECIFICATIONS
General Specifications
Models Standard Heavy-duty Suspension
Items
4
2
(Except High Ride Sus)
4
2
(High Ride Sus)
4

4
4
2 (Except High Ride Sus) 4
2
(High Ride Sus)
4

4
Type Semi-elliptic, rubber bushed, leaf type springs and direct double acting shock
absorbers.


Leaf spring

No. of leaves
5 7
Spring eye type
Berlin eye type Up turned eye type
Bushing outside dia mm(in) Front; 40 (1.57), Rear; 30 (1.18)
Length mm(in) 1200 (47.24)
Width mm(in) 60 (2.36)

Rear shock absorbers
Type

Gas-sealed Hydraulic, double acting telescopic


Mean stroke mm(in)
198 (7.80) 199 (7.83) 198 (7.80) 199 (7.83)
Compressed length mm(in)
323 (12.7) 349 (13.8) 323 (12.7) 349 (13.7)
Extended length mm(in)
521 (20.5) 549 (21.6) 521 (20.5) 549 (21.9)

REAR SUSPENSION 3D-3

Torque Specifications
N
m(kg
m/lb
ft)

RTW430LF000101

3D-4 REAR SUSPENSION
REAR SUSPENSION
GENERAL DESCRIPTION

Rear suspension absorbs vibration from the road surface thus preventing vehicle damage, as well as providing a
good ride.

Components parts
 Spring between the body and the axle case
 Spring shackle connecting the spring to the body
 Clamp and U-bolt fixing the axle case to the spring
 Shock absorber as a countermeasure for vibration