suspension ISUZU TF SERIES 2004 Workshop Manual

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

REAR SUSPENSION 3D-5
LEAF SPRING AND SHOCK ABSORBER
LEAF SPRING AND ASSOCIATED PARTS

460R300001

Legend
1. Parking Brake Cable Bracket
2. Nut and Washer
3. Nut and Washer
4. Shock Absorber
5. Nut
6. U Bolt and Seat
7. Lower Clamp
8. Nut
9. Shackle Plate


10. Shackle Pin
11. Rubber Bushing
12. Nut and Plain Washer
13. Spring Pin
14. Leaf Spring
15. Bump Rubber

3D-6 REAR SUSPENSION
F03L100003

Removal
 Jack up the rear axle and place chassis stands under the
frame near the front end of the rear spring brackets.
Note:
 Be careful not to stretch the flexible brake hose o
r
parking brake cable.
 Support the vehicle on the specified jack point.
1. Remove the parking brake cable (1) from the leaf spring.
2. Loosen the shock absorber fixing nut and remove the nu
t
and special washer (2) from the lower clamp.



3. Remove the shock absorber fixing nut and washer (3) at
frame side.
4. Lifting the rear axle by a jack, remove the shock absorbe
r
(4) and lower the jack.
5. Remove the U bolt fixing nut (5).
6. Take out the U bolt (6), seat and lower clamp (7).
7. Support the leaf spring by a jack and remove the shackle
pin fixing nuts (8).
8. Drive out the shackle pin (10), using a brass bar and
hammer.
9. Remove the shackle plate (9) and rubber bushings (11).
10. Remove the nut (12) and drive out the shackle with a
hammer using a brass bar.
11. Remove the leaf spring (14).
12. Remove the bump rubber (15).

REAR SUSPENSION 3D-7
INSPECTION AND REPAIR
Make correction or parts replacement if wear, damage or their abnormal conditions are found through inspection.





Visual Check
Inspect the following parts for wear, damage, nuts or other
abnormal conditions.
 Leaf spring assembly
 Clip
 Center bolt
 U-bolt
 Spring pin
 Shackle pin
 Shock absorber
 Rubber bumper
 Rubber bushing
 Bump rubber seat



Shackle Pin
Shackle Pin diameter mm (in)
17.93 - 18.00 (0.706 - 0.709)



Spring Pin
Spring Pin Diameter mm (in)
13.8 - 14.0 (0.543 - 0.551)



Shock Absorber
Inspection operation of shock absorber
If no resistance is felt while expanding the shock absorber, that
indicates the absorber is faulty.