ISUZU TF SERIES 2004 Workshop Manual

FRONT WHEEL DRIVE 4C1-51

Important Operations
6. Hub nut
Wrench : 5-8840-2117-0
(J-36827)



7. Hub and disc assembly
Before disassembly, remove the disc brake caliper assembly
and hang it on the frame with wires.
Refer to Section “Brake” for disc brake caliper removal
procedure.


12. Bolt
13. Wheel Pin ; Front Hub
(1) Scribe mark on hub to disc before disassembly to insure
proper assembly.
(2) Drive out the ABS sensor rotor using a metal bar and
hammer through the two bolt holes.
 Discard the used ABS sensor rotor
Refer to the section Brake.



(3) Clamp hub and disc assembly in vise using protective pads
and remove six (6) disc to hub retaining bolts.


(4) Place hub on a suitable work surface and remove wheel
studs, as required, using a hammer.

4C1-52 FRONT WHEEL DRIVE
INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear, damage or any other abnormal conditions are found
through inspection.
For inspection and servicing of disc caliper, and relative parts, and ABS parts, refer to Section Brakes.




Hub


Hub bearing, oil seal


Knuckle spindle


Disc


Caliper


ABS sensor rotor

Cap, Hub flange, Shim, Snap ring



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

FRONT WHEEL DRIVE 4C1-53
REASSEMBLY
Refer to SECTION 3E “WHEEL AND TIRE” for wheel removal procedure.



Reassembly Steps


1. Wheel pin


2. Bolt


3. ABS sensor rotor


4. Inner bearing


5. Oil seal


6. Outer bearing


7. Hub and disc assembly




8. Hub nut


9. Lock washer
10. Flange (4

4 model only)


11. Snap ring and shim (4

4 model only)
12. Hub cap


13. Bolt

4C1-54 FRONT WHEEL DRIVE

Important Operations
1. Wheel Pin
(1) Place hub on a wood workbench or a block of wood,
approx. 6” by 6” to protect the wheel stud ends and threads.
(2) Install wheel stud using a hammer.
Be sure wheel stud is started squarely and seats
completely.

(3) Align index marks and install hub to disc.


2. Bolt
Torque N
m (kgf
m/lb
ft)
103 
10 (10.5 
1/75.9 
7.2)



3. ABS sensor rotor
(1) Set a new ABS sensor rotor, if replacement is required.
(2) Install the ABS sensor rotor in the hub, using special tools.
Installer : 5-8840-2789-0
Grip : 5-8840-0007-0
Refer to the section Brake.


4. Inner Bearing
Outer race ; outer bearing
Install the outer race by driving it into the hub.
Installer : 5-8840-2119-0
(J-36829)
Grip : 5-8840-0007-0
(J-8092)

FRONT WHEEL DRIVE 4C1-55

5. Oil Seal
Installer : 5-8840-2120-0
(J-36830)
Grip : 5-8840-0007-0
(J-8092)
Apply grease (Besco L-2 or equivalent) to the lip portion.
Discard the used oil seal and install a new one.



RTW44CSH000101

6. Outer bearing
Outer race ; outer bearing
Install the outer race by driving it into the hub.
Installer : 5-8522-0054-0
(J-29015)
Grip : 5-8840-0007-0
(J-8092)


7. Hub and Disc Assembly
(1) Apply grease in the hub.
(2) Apply grease (Besco L-2 or equivalent) to the outer and
inner bearing.
g(oz)
Hub 35 (1.23)
Outer bearing 10 (0.35)
Inner bearing 15 (0.53)


8. Hub Nut
(1) Turn the place where there is a chamfer in the tapped hole
to the outer side, and attach the nut.
Wrench : 5-8840-2117-0
(J-36827)

4C1-56 FRONT WHEEL DRIVE


Preload Adjustment
Tighten the hub nut at 29.4 Nm (3 kgfm / 21.716 lb.ft), then
loosen the nut to the full.
Tighten the hub nut at the value given below, using a spring
scale on the wheel pin.
Bearing Preload N(lb)

New bearing and New oil seal 20 - 25 (4.4 - 5.5)
Used bearing and New oil seal 12 - 18 (2.68 - 4.0)
If the measured bearing preload is outside the specifications,
adjust it by loosening or tightening the bearing nut.



9. Lock Washer
Turn the side with larger diameter of the tapered bore to the
vehicle outer side, and attach the washer.
If the bolt holes in the lock plate are not aligned with the
corresponding holes in the nut, reverse the lock plate.
If the bolt holes are still out of alignment, turn in the nut just
enough to obtain alignment,. Screw is to be fastened tightly so
its head may come lower than the surface of the washer.












11. Snap ring, shims (4





4 model only)
Adjust the clearance between the flange and the snap ring.
Clearance mm(in)
0 - 0.2 (0 - 0.08)
Adjust shims available
mm(in)
0.2, 0.3, 0.5, 1.0
(0.008, 0.011, 0.020, 0.039)




RTW440SH000901
13.
Bolt
Torque Nm (kgfm/lbft
)
59 (6.0 / 43)

FRONT WHEEL DRIVE 4C1-57
FRONT HUB AND DISC
(4




4 Manual Locking Hub Model)
DISASSEMBLY
Refer to SECTION 3E “WHEEL AND TIRE” for wheel removal procedure



RTW440LF000301

Disassembly Steps


1. Bolt
2. Cover assembly
3. Snap ring and shim
4. Body assembly
5. Lock washer


6. Hub nut


7. Hub and disc assembly
8. Outer bearing
9. Oil seal
10. Inner bearing
11. ABS sensor rotor


12. Bolt


13. Wheel pin




14. Clutch assembly
15. Snap ring
16. Knob
17. Compression spring
18. Follower


19. Retaining spring
20. X-ring
21. Snap ring
22. Inner assembly
23. Snap ring
24. Ring
25. Spacer

4C1-58 FRONT WHEEL DRIVE



Important Operations
1. Bolt
Before removal, shift transfer lever into “2H” position and set
free wheeling hub knob into “FREE” position.


6. Hub nut
Wrench : 5-8840-2117-0
(J-36827)



7. Hub and disc assembly
Before disassembly, remove the disc brake caliper assembly
and hang it on the frame with wires.
Refer to Section “Brake” for disc brake caliper removal
procedure.


14. Clutch Assembly
While pushing follower knob, turn clutch assembly clockwise
and then remove clutch assembly from knob.



19. Retaining Spring
Remove retaining spring from clutch assembly by turning it
counterclockwise.

FRONT WHEEL DRIVE 4C1-59


12. Bolt
13. Wheel Pin ; Front Hub
(1) Scribe mark on hub to disc before disassembly to insure
proper assembly.
(2) Drive out the ABS sensor rotor using a metal bar and
hammer through the two bolt holes.

Discard the used ABS sensor rotor
Refer to the section Brake.



(3) Clamp hub and disc assembly in vise using protective pads
and remove six (6) disc to hub retaining bolts.


(4) Place hub on a suitable work surface and remove wheel
studs, as required, using a hammer.

4C1-60 FRONT WHEEL DRIVE
INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear, damage or any other abnormal conditions are found
through inspection.
For inspection and servicing of disc caliper, and relative parts, and ABS parts, refer to Section Brakes.




Hub

Hub bearing, oil seal


Knuckle spindle


Disc


Caliper


ABS sensor rotor


Cap, Hub flange, Shim, Snap ring


Free wheeling hub parts (Option)

Clutch, Knob, follower, inner, ring and
spring


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