1997 ISUZU TFS SERIES brake

FRONT WHEEL DRIVE 4C1-45
REASSEMBLY
Refer to SECTION 3E “WHEEL AND TIRE” for wheel removal procedure.
Reassembly Steps
1. Wheel pin
2. Bolt
3. Inner bearing and outer race
4. Oil seal
5. Hub and disc assembly
6. Outer bearing
7. Lock washer
8. Hub nut
9. Nut retainer
10. Split pin
11. Hub cap
12. Brake caliper
13. Bolt

FRONT WHEEL DRIVE 4C1-47
(3) Install oil seal using special tools.
Installer : 5-8522-0051-0
(J-33161)
Grip : 5-8840-0007-0
(J-8092)
5. Hub and Disc Assembly
11. Hub Cap
Apply grease in the hub and hub cap.
Description Amount g(oz)
Hub 50 (1.76)
Hub cap 20 (0.70)
Outer bearing 6.5 (0.23)
Inner bearing 12 (0.42)
8. Hub nut
Adjustment of front wheel hub bearing preload
1. Tighten spindle nut to 3.0 kg
m (21.7 lb.ft/29.4 Nm) torque.
2. Turn the hub 2-3 turns and loosen the nut just enough so
that it can be turned with the fingers.
3. Turn the nut all the way in with the fingers and check to be
sure the hub has no free play.
4. Measure the bearing preload by pulling one of the wheel hub
studs with a spring scale.
5. Tighten the spindle nut until specified bearing preload Is
obtained.
After reassembling, install the disc brake caliper assembly.
Bearing Preload kg(lb)
New bearing and New oil seal 0.8 - 1.0(1.8 - 2.2)
Reuse bearing and New oil seal 0.8 - 1.0 (1.8 - 2.2)
13.Bolt
Torque N
m (kgfm/lbft)
155
15.7 (15.8 1.6/114.3 11.6)

FRONT WHEEL DRIVE 4C1-49
Important Operations
6. Hub nut
Wrench : 5-8840-2117-0
(J-36827)
Refer to Section 5 “Brake” for disc brake
caliper removal procedure.7. Hub and disc assembly
Before disassembly, remove the disc brake caliper assembly
and hang it on the frame with wires.

4C1-50 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, refer to Section 5 “Service Brakes”.
Hub
Hub bearing, oil seal
Knuckle spindle
Disc
Caliper
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.

FRONT WHEEL DRIVE 4C1-55
Important Operations
1. Bolt
Shift the transfer lever to the “2H” position and move the
vehicle forward and rearward about one meter.
Remove the 14 mm hex bolts.
8. Hub Nut
Wrench : 5-8840-2117-0
(J-36827)
Refer to Section 5 “Brake” for disc brake
caliper removal procedure9. Hub and Disc Assembly
Before disassembly, remove the disc brake caliper assembly
and hang it on the frame with wires.
10.Outer Bearing and Outer Race
12.Inner Bearing and Outer Race
(1) Remove the outer bearing from the hub with fingers. The
inner bearing will remain in the hub and may be removed
after prying out the inner bearing lip seal assembly.
(2) Remove the outer race by driving out the race from the hub
with a brass drift inserted behind the race in the notches in
the hubs.
If necessary, replace the wheel pin in the following manner.
13.Bolt
(1) Apply a scribe mark to disc to hub.
(2) Clamp the hub and disc assembly in a vise using protective
pads and remove the 6 disc to hub retaining bolts.

FRONT WHEEL DRIVE 4C1-57
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, refer to Section 5 “Service Brakes”.
Hub
Hub bearing, oil seal
Knuckle spindle
Disc
Caliper
Automatic locking hubs
Visual Check
Check the following parts for wear, damage or other abnormal
conditions.
Inside Diameter of Housing
mm(in)
Standard Limit
65.04 (2.61) 65.24 (2.568)
Inspect flange surface A and B for excessive wear.
Drive Clutch Section Dimensions “L”
mm(in)
Standard Limit
8.2 (0.323) 7.8 (0.37)
Holdout Ring Axial Play of the Drive
Clutch Assembly
mm(in)
Standard Limit
0.3 (0.012) or less 0.4 (0.016)

FRONT WHEEL DRIVE 4C1-67
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)
Refer to Section 5 “Brake” for disc brake
caliper removal procedure.7. Hub and Disc Assembly
Before disassembly, remove the disc brake caliper assembly
and hang it on the frame with wires.
11.Clutch Assembly
While pushing follower knob, turn clutch assembly clockwise
and then remove clutch assembly from knob.
16.Retaining Spring
Remove retaining spring from clutch assembly by turning it
counterclockwise.

4C1-68 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, refer to Section 5 “Service Brakes”.
Hub
Hub bearing, oil seal
Knuckle spindle
Disc
Caliper
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.