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
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