Isuzu N-Series. Service manual - part 165

REAR AXLE 4B-17

Removal

Preparation:
Jack up and support the vehicle on stands.

1. Wheel and Tire

Right side wheel nut (1) have right hand threads
and left side wheel nut (2) have left hand threads.

2. Axle Shaft

Use the axle shaft remover and the sliding hammer
to remove the axle shaft.
Axle Shaft Remover: 5-8840-2027-0
Sliding Hammer: 5-8840-0084-0

3. Outer Oil Seal

Use a pry bar to pry the oil seal from the axle case.

4. Lock Washer
5. Bearing Lock Nut

Use the lock nut remover to remove the lock nut.
Lock Nut Remover:
9-8522-1188-0 (For lock bolt P.C.D. 70 mm (2.8
in.))
9-8522-1606-0 (For lock bolt P.C.D. 74 mm (2.9
in.))

N4A0089E

N4A0090E

N4A0091E

N4A0092E

4B-18 REAR AXLE

6. Outer Bearing

If the bearings are to be reinstalled, tag each bear-
ing with the fitting position from which it was re-
moved.

7. Hub and Brake Drum

Use the rear hub remover to remove the hub and
the brake drum.
Rear Hub Remover:
9-8521-0116-0 (For NHR, NKR Flat Low)

Rear Hub Remover:
9-8521-2501-0 (For except NHR, NKR Flat Low)

8. Inner Oil Seal
9. Inner Bearing

10. Inner Bearing Outer Race
11. Outer Bearing Outer Race

Use a hammer and a brass bar (2) to drive the out-
er races (3) from the hub (1) at the two points
shown in the illustration.

N4A0093E

N4A0094E

N4A0095E

N4A0096E

REAR AXLE 4B-19

12. Wheel Pin

1) Set the rear hub with brake drum (1) to the

wheel with tire (2) previously removed from the
vehicle.
Turn the wheel pin nuts (3) counterclockwise to
loosen them.

2) The pin nuts are loosened counterclockwise on

both sides of the vehicle.

3) Remove the brake drum from the rear hub.
4) Discard the wheel pins and nuts.

The wheel pins and nuts cannot be reused.

13. Hub
14. Brake Drum

Inspection and Repair

Make necessary adjustments, repairs, and part replace-
ment if excessive wear or damage is discovered during
inspection.
Axle Shaft Spline
Inspect the spline for wear, damage or other abnormal
conditions.

Axle Shaft Run-Out
Limit, 1 mm (0.039 in)

N4A0097E

N4A0098E

N4A0099E

N4A0100E

4B-20 REAR AXLE

Axle Shaft Flange Run-Out
Limit, 0.15 mm (0.00591 in)

Hub
Inspect the oil seal and bearing fitting faces for exces-
sive wear and damage.
Inspect the wheel pin threads and stud bolt threads for
excessive damage and cracks.

Bearing
Inspect the bearing for excessive wear, abnormal noise,
rough rotation, and freezing.

Lock Washer
Inspect the lock washer for excessive wear, cracks,
warpage, and other damage.

Bearing Lock Nut
Inspect the bearing lock nut threads and contact surfac-
es for excessive wear, warpage, and other damage.
Light damage to the contact surfaces can be repaired
with an oil stone or a piece of fine sandpaper.

N4A0101E

N4A0102E

N4A0103E

N4A0104E