Isuzu N-Series. Manual — part 179
FRONT AXLE 4C-11
Removal
Preparation:
Jack up and support the vehicle on stands.
1. Wheel and Tire
2. Hub Cap
When removing hub cap, exercise care so as not
to scratch or distort hub fitting face.
3. Hub Bearing Nut
Hub Nut Wrench: 5-8840-2015-0
4. Lock Washer
5. Hub with Brake Drum Assembly
5 studs
Hub Remover: 5-8840-2016-0
6 studs
Hub Remover: 9-8521-0115-0 (NHR, NKR rear
small tire)
6. Distance Piece
7. Outer Bearing
8. Oil seal
9. Inner Bearing
10. Inner Bearing Outer Race
Drive out the inner bearing outer race together with
the oil seal with a proper bar through two notches.
N4A0235E
N4A0236E
N4A0237E
N4A0238E
4C-12 FRONT AXLE
11. Outer Bearing Outer Race
12. Brake Drum
13. Hub
Inspection and Repair
Make the necessary adjustments, repairs, and part re-
placements if excessive wear or damage is discovered
during inspection.
Visual Check
Inspect the following parts for wear, damage or other ab-
normal conditions.
• Hub
• Hub bearing, oil seal
• Knuckle spindle
• Brake
• Brake shoe, lining etc.
(NHR, NKR MODELS)
Check bolt for looseness.
Installation
1. Hub
2. Brake Drum
Tighten the brake drum wheel nuts to the specified
torque.
Tighten:
Wheel nut to
• Brake lining width 75 mm: 343 N
⋅m (35 kg⋅m / 253
lb
⋅ft)
• Brake lining width 100 mm: 392 N
⋅m (40 kg⋅m / 289
lb
⋅ft)
When replacement of hub or drum is completed,
stake 3 portions of each wheel pin nut.
This illustration is based on 5 studs.
3. Outer Bearing Outer Race
4. Inner Bearing Outer Race
N4A0239E
N4A0241E
N4A0242E
N4A0243E
FRONT AXLE 4C-13
Apply grease (1) in the hub and bearing rollers
5. Inner Bearing
6. Oil Seal
Drive the oil seal into the hub flush with the hub end
surface.
7. Outer Bearing
8. Distance Piece
9. Hub with Brake Drum Assembly
10. Lock Washer
11. Hub Bearing Nut
Check the brake lining clearances first to avoid fric-
tion loss.
Adjust the hub bearing preload at the wheel pin.
Hub Nut Wrench: 5-8840-2015-0
In case of misalignment of locking hole, align in di-
rection of retightening.
Bearing Outer Race Installer
Parts No.
Remarks
All
9-8522-1148-0
Grip
NHR
5-8840-2023-0
Inner Bearing
NKR
5-8840-2025-0
Outer Bearing
NPR
5-8840-2024-0
Inner Bearing
NQR
5-8840-2026-0
Outer Bearing
Hub Grease Amount
g (oz)
Hub
Hub cap
NHR
Rear Single and
Dual Small Tire
55 (1.9)
30 (1.1)
NKR
Rear Single and
Dual Small Tire
80 (2.8)
40 (1.4)
NKR
Rear Dual Tire
90 (3.2)
NPR
NQR
160 (5.6)
N4A0244E
Hub Bearing Preload (at Wheel Pin)
N (kg/lb)
NHR
New
9.8 — 34.3
(1.0 — 3.5/2.2 — 7.7)
Reused
7.8 — 22.5
(0.8 — 2.3/1.8 — 5.0)
NKR
New
11.8 — 26.5
(1.2 — 2.7/2.6 — 5.9)
Reused
6.9 — 21.6
(0.7 — 2.2/1.5 — 4.8)
NPR
NQR
New
9.8 — 34.3
(1.0 — 3.5/2.2 — 7.7)
Reused
4.9 — 19.6
(0.5 — 2.0/1.1 — 4.4)
N4A0245E
4C-14 FRONT AXLE
12. Hub Cap
13. Wheel and Tire
N4A0246E
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