Isuzu N-Series. Manual — part 816
7B-34 MANUAL TRANSMISSION (MSB)
Tighten:
Parking brake nut M12 to 113 N
⋅m (11.5 kg⋅m / 83 lb⋅ft)
33. Coupling Driver
34. Lock Nut
• Install the O-ring and conical washer. The con-
ical washer is to be set up with its identification
groove to the nut side.
• Apply the engine oil to the setting face of the
new lock nut and tighten it up to the specified
torque.
Caution:
Do not reuse the lock nut.
Handle: 5-8840-2043-0
Tighten:
Lock nut to 226 N
⋅m (23.0 kg⋅m / 166 lb⋅ft)
• Align the lock nut with the V-shaped groove at
the tip of the main shaft, and caulk the nut lip
portion by using a chisel. (Round edge approx-
imately 1 mm (0.04 in)
× 60°).
• As shown in the illustration, be sure to caulk the
nut lip so that the clearance between the V-
shaped groove portion at the tip of the main
shaft and the caulked up lip (A) is less than 1.5
mm (0.06 in), and the caulking length (B) is 5
mm (0.2 in) or more.
Caution:
Be sure to confirm that there is no crack at the caulked
portion of the lock nut after caulking.
N7A0069E
N7A0129E
N7A0130E
MANUAL TRANSMISSION (MSB) 7B-35
35. Parking Brake Drum
• Adjust the parking brake after installation.
1) Rotate the brake drum to align the adjust hole
with the adjuster.
2) Move the camshaft lever from side to side sev-
eral times to center the brake shoes.
3) Insert a screwdriver into the hole and rotate the
adjuster by pushing it upward until the shoes
drag on the drum.
4) Back off the adjuster 30 notches.
• Install the adjust hole cover.
Tighten:
Adjust hole cover bolt to 8 N
⋅m (0.8 kg⋅m / 69 lb⋅in)
36. Detent Ball
37. Detent Spring
38. Control Box Assembly
• Apply small amount of multi-purpose grease to
the detent balls.
• Install the 3 detent balls and the 3 detent
springs to the transmission case.
• Install the control box assembly with new gas-
ket.
Tighten:
Control box to transmission case bolts to 20 N
⋅m (2.0
kg
⋅m / 14 lb⋅ft)
Notice:
Operating the shift lever and the select lever, make sure
that they shift to each position smoothly.
39. Shift Fork and Support Bolt
Tighten:
Support bolt to 52 N
⋅m (5.3 kg⋅m / 38 lb⋅ft)
N7A0050E
N7A0131E
N7A0132E
7B-36 MANUAL TRANSMISSION (MSB)
40. Release Bearing Assembly
41. Mission Mounting Assembly
Tighten:
Mission mounting bolt to 69 N
⋅m (7.0 kg⋅m / 51 lb⋅ft)
N7A0065E
N7A0064E
N7A0063E
MANUAL TRANSMISSION (MSB) 7B-37
Top Gear Shaft Assembly, Main Shaft Assembly and Counter Shaft Assembly
Legend
Top gear shaft assembly
15. Snap ring
1. Snap ring
16. Thrust washer
2. Ball bearing
17. 2nd gear
18. Needle bearing
Main shaft assembly
19. Block ring
3. Thrust washer
20. Snap ring
4. 5th gear
21. 1st/2nd synchronizer assembly
5. Block ring
22. Block ring
6. Snap ring
23. 1st gear
7. 5th/reverse synchronizer assembly
24. Needle bearing
8. Reverse gear
9. Needle bearing
Counter shaft assembly
10. Snap ring
25. Snap ring
11. 3rd/4th synchronizer assembly
26. Conical washer
12. Block ring
27. Anti-lash plate
13. 3rd gear
28. Spring
14. Needle bearing
N7A0014E
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