ISUZU TFS SERIES 1997 Workshop Manual

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.

FRONT WHEEL DRIVE 4C1-69
REASSEMBLY
Reassembly Steps
1. Spacer
2. Ring
3. Snap ring
4. Inner assembly
5. Snap ring
6. X-ring
7. Detent ball and spring
8. Knob
9. Snap ring
10. Retaining spring
11. Follower
12. Compression spring
13. Clutch assembly
14. Outer bearing
15. Inner bearing
16. Oil seal
17. Hub and disc assembly
18. Hub nut
19. Lock washer
20. Body assembly
21. Snap ring and shims
22. Cover assembly
23. Bolt

4C1-70 FRONT WHEEL DRIVE
Important Operations
1. Spacer
Apply grease to both faces of spacer.
4. Inner Assembly
Apply grease wheel bearing to inside face of ring.
g(oz)
Amount of grease 3 (0.10)
8. Knob
(1) Apply grease W heel bearing to outer circumference of knob
and inner circumference of cover.
(2) Align detent ball to either groove of cover.
9. Snap Ring
Turn the smoother face to knob side.
10.Retaining Spring
Align the end of spring to the end of cut portion of clutch spring
groove.
11.Follower
Install follower to clutch so that follower nail will come closer to
the bent portion of retaining spring by aligning follower stopper
nail to outer teeth of clutch. Then, hook retaining spring onto
upper portion of hanger nails of follower.
12.Compression Spring
Turn the smaller diameter side to follower.
13.Clutch Assembly
Align follower nail to handle groove, and then assemble clutch
with knob by pushing and turning clutch counterclockwise to
knob.

FRONT WHEEL DRIVE 4C1-71
14.Outer Bearing
Outer race ; outer bearing
Install the outer race by driving it into the hub.
Installer : 5-8840-0054-0
(J-29015)
Grip : 5-8840-0007-0
(J-8092)
15.Inner Bearing
Outer race ; inner bearing
Install the outer race by driving it into the hub.
Installer : 5-880-2119-0
(J-36829)
Grip : 5-8840-0007-0
(J-8092)
16.Oil Seal
Installer : 5-8840-2120-0
(J-36830)
Grip : 5-8840-0007-0
(J-8092)
17.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)
18.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)

4C1-72 FRONT WHEEL DRIVE
Preload Adjustment
Tighten the hub nut at 29.4 Nm (3 kgfm / 21.716 lbft), 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 kg(lb)
New bearing and New oil seal 2 -2.5 (4.4 - 5.5)
Used bearing and New oil seal 1.2 - 1.8 (2.6 - 4.0)
If the measured bearing preload is outside the specifications,
adjust it by loosening or tightening the bearing nut.
19.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.
20.Body Assembly
Apply adhesive (Loctite 15 or equivalent) to the both joining
faces.
21.Snap Ring and Shims
Adjust the clearance between the free wheeling hub body and
the snap ring.
Clearance mm(in)
0 - 0.3 (0 - 0.01)
Adjust Shims Available mm(in)
0.2, 0.3, 0.5, 1.0
(0.008, 0.011, 0.020, 0.039)
22.Cover Assembly
Align stopper nails to grooves of body.

FRONT WHEEL DRIVE 4C1-73
23.Bolt
Torque N
m (kgfm/lbft)
11.8
2.0 (1.2 0.2 / 8.7 1.4)

4C1-74 FRONT WHEEL DRIVE
FRONT PROPELLER SHAFT
REMOVAL AND INSTALLATION
Since the propeller shaft assembly is carefully
balanced, a setting mark should be applied to
the flange before removal to indicate correct
position.Install the parts by aligning the setting marks
made at removal.
Removal Steps
1. Nut ; differential side
2. Bolt ; transfer side
3. Propeller shaft assembly ; rear side
4. Propeller shaft assembly ; front side
Installation Steps
4. Propeller shaft assembly ; front side
3. Propeller shaft assembly ; rear side
2. Bolt ; transfer side
1. Nut ; differential side
Important Operation - Installation
3. Propeller Shaft Assembly ; Rear Side
Align the indexing marks (about 3 mm dia. punched mark) on
the propeller shaft end and the splined yoke.

FRONT WHEEL DRIVE 4C1-75
2. Bolt ; Transfer Side
Torque N
m (kgfm/lbft)
Bolt size M10 62.8 3.9 (6.4 0.4/46.3 2.9)
1. Bolt ; Differential Side
Torque N
m (kgfm/lbft)
Bolt size M8 35.3 2.9 (3.6 0.3 / 26 2.2)

4C1-76 FRONT WHEEL DRIVE
DISASSEMBLY
Disassembly Steps
1. Snap Ring
2. Needle Roller Bearing
3. Spider4. Flange Yoke
5. Grease Fitting
Important Operation
2. Needle Roller Bearing
(1) Apply alignment marks (1) on the yokes of the universal
joint, then remove snap ring.
(2) Tap out the needle roller bearing by gently striking the
shoulder of the yoke, using a mallet or a copper hammer.

FRONT WHEEL DRIVE 4C1-77
INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear, damage or any other abnormal conditions are found
through inspection.
Spider
Needle roller bearing
Yoke
Flange
Center bearing
Cushioning rubber
Bracket
Visual Check
Check the following parts for wear, damage or other abnormal
conditions.
Outside Diameter of Spider Pins
TF Side for Type - A and B mm(in)
Standard Limit
17.000 (0.669) 16.90 (0.665)
Axle Side for Type - A mm(in)
Standard Limit
14.724 (0.580) 14.624 (0.576)
Play in Splines in Normal Direction of
Rotation
Check the amount of play in the sleeve yoke and propeller
shaft splines in the direction of rotation, using a pointed feeler
gauge.
mm(in)
Standard Limit
0.074 - 0.156
(0.003 - 0.006)0.3 (0.012)