Isuzu N-Series. Manual - part 160

PROPELLER SHAFT 4A-15

Center Bearing

NKR 66, 71, 77
NPR 66, 70, 71
NQR 66, 70, 71
NPS 71

Disassembly

1. Lock Nut
2. Washer (NQR70 only)
3. Coupling Driver

Apply alignment marks on the flange and tube as-
sembly.

4. Center Bearing Assembly

Notice:

The center bearing can not be disassembled.

Legend

1. Lock nut

3. Coupling driver

2. Washer (NQR70 only)

4. Center bearing assembly

N4A0044E

N4A0045E

4A-16 PROPELLER SHAFT

Reassembly

1. Center Bearing Assembly

Install the center bearing assembly so that the
grease fitting side is faced toward the coupling driv-
er side.
When pressing in the center bearing, the bearing
should be pressed through a coupling driver to
avoid bearing damage.

Apply bearing grease to lip of the oil seal and cen-
ter bearings.

Amount of grease required,
Except NQR70: 20 — 25 g (0.7 — 0.9 oz)
NQR70: 40 — 50 g (1.4 — 1.8 oz)

2. Coupling Driver

Be sure to align the setting marks described before
disassembling.

3. Washer
4. Lock Nut

Set a special tool into a vice then attach the propel-
ler shaft assembly.
Flange bracket: 9-8529-2101-0
Discard used flange nut and install new one.

Tighten:

Lock nut to

• NHR55, 69, NKR55: 118 N

⋅m (12 kg⋅m / 87 lb⋅ft)

• NQR70: 441 N

⋅m (45 kg⋅m / 325 lb⋅ft)

• Other models: 539 N

⋅m (55 kg⋅m / 398 lb⋅ft)

Caulk the lock nut at the V-shaped groove portion of the
shaft.

Legend

1. Coupling driver lock nut
2. Coupling driver
3. Center bearing assembly

Legend

1. Propeller shaft
2. Oil seal
3. Coupling driver
4. Center bearing
5. Rubber
6. Lock nut

N4A0046E

N4A0047E

PROPELLER SHAFT 4A-17

NKR 55

Disassembly

1. Lock Nut
2. Lock Washer
3. Washer Assembly
4. Coupling Driver

Apply alignment marks on the flange and tube as-
sembly.

5. Center Bearing Assembly

Notice:

The center bearing can not be disassembled.

Legend

1. Lock nut

4. Coupling driver

2. Lock washer

5. Center bearing assembly

3. Washer assembly

N4A0048E

N4A0049E

4A-18 PROPELLER SHAFT

Reassembly

1. Center Bearing Assembly

Install the center bearing assembly so that the
grease fitting side is faced toward the coupling driv-
er side.
When pressing in the center bearing, the bearing
should be pressed through a coupling driver to
avoid bearing damage.

Apply bearing grease to lip of the oil seal and center
bearing.
Amount of grease required, 20 — 25 g (0.7 — 0.9 oz)

2. Coupling Driver

Be sure to align the setting marks described before
disassembling.

3. Washer Assembly
4. Lock Washer

Discard used lock washer and install new one.

5. Lock Nut

Set a special tool into a vice then attach the propel-
ler shaft assembly.
Flange bracket: 9-8529-2101-0

Tighten:

Lock nut to 118 N

⋅m (12 kg⋅m / 87 lb⋅ft)

After tightening the lock nut to specified torque, bend a
part of the lock washer to the nut side.

Legend

1. Lock nut
2. Lock washer
3. Washer assembling
4. Coupling driver
5. Center bearing assembly

Legend

1. Propeller shaft
2. Oil seal
3. Coupling driver
4. Center bearing
5. Rubber
6. Lock nut

N4A0046E

Legend

1. Lock nut
2. Lock washer
3. Coupling driver
4. Washer assembly

N4A0047E

N4A0050E