Nissan Note E12. Manual - part 622

TM-46

< UNIT DISASSEMBLY AND ASSEMBLY >

[5MT: RS5F91R]

MAINSHAFT AND GEAR

MAINSHAFT AND GEAR

Exploded View

INFOID:0000000009417612

Disassembly

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CAUTION:

• Secure mainshaft in a vise using blocks of wood to prevent damage, and then remove gears and

snap rings.

1.

Mainshaft front bearing

2.

Mainshaft

3.

1st main gear

4.

1st inner baulk ring

5.

1st synchronizer cone

6.

1st outer baulk ring

7.

1st-2nd synchronizer hub

8.

1st-2nd coupling sleeve

9.

Spring

10. Insert key

11. 2nd outer baulk ring

12. 2nd synchronizer cone

13. 2nd inner baulk ring

14. Snap ring

15. Thrust washer 

16. 2nd main gear

17. 3rd main gear

18. 3rd baulk ring

19. 3rd-4th synchronizer hub

20. 3rd-4th coupling sleeve

21. 4th baulk ring

22. 4th main gear

23. Spacer

24. Mainshaft rear bearing

25. 5th main gear

: Apply gear oil.

: Replace the parts as a set.

JPDIC0531GB

MAINSHAFT AND GEAR

TM-47

< UNIT DISASSEMBLY AND ASSEMBLY >

[5MT: RS5F91R]

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• For removal of snap ring, set snap ring pliers and flat pliers at

both sides of snap ring. While expanding snap ring with snap

ring pliers, remove snap ring with flat pliers.

• Mark gear component direction for assembly without damag-

ing component contact locations.

1. Remove 3rd-4th synchronizer hub and 3rd baulk ring.
2. Remove snap ring (1) and thrust washer (2).

CAUTION:

Do not reuse snap ring.

3. Remove 3rd main gear (1) and thrust washer (2).

4. Remove snap ring (1) and thrust washer (2).

CAUTION:

Do not reuse snap ring.

SCIA1755J

PCIB1559E

PCIB1560E

PCIB1561E

TM-48

< UNIT DISASSEMBLY AND ASSEMBLY >

[5MT: RS5F91R]

MAINSHAFT AND GEAR

5. Remove 2nd main gear (1) and thrust washer (2).

6. Remove snap ring (1), and then remove 2nd inner baulk ring,

2nd synchronizer cone, and 2nd outer baulk ring.

7. Remove 1st-2nd coupling sleeve, insert keys, springs, and 1st-

2nd synchronizer hub.

8. Remove 1st outer baulk ring, 1st synchronizer cone, 1st inner

baulk ring, and 1st main gear (2).

Assembly

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Assembly is in the reverse order of disassembly.

CAUTION:

• Do not reuse snap ring.

• For installation of snap ring, set snap ring pliers and flat pliers

at both sides of snap ring. While expanding snap ring with

snap ring pliers, remove snap ring with flat pliers.

• Check that snap ring is securely installed to the groove.

• Apply gear oil to 1st outer baulk ring, 1st synchronizer cone,

1st inner baulk ring, 2nd outer baulk ring, 2nd synchronizer

cone, 2nd inner baulk ring, and 3rd baulk ring.

• Replace 1st outer baulk ring, 1st synchronizer cone, and 1st

inner baulk ring as a set.

• Replace 2nd outer baulk ring, 2nd synchronizer cone, and 2nd

inner baulk ring as a set.

• Be careful with the orientation of 1st-2nd synchronizer hub.

• Replace 1st-2nd synchronizer hub and 1st-2nd coupling

sleeve as a set.

PCIB1562E

JPDIC0541ZZ

SCIA1755J

(A)

: 1st main gear side

(B)

: 2nd main gear side

PCIB1566E

MAINSHAFT AND GEAR

TM-49

< UNIT DISASSEMBLY AND ASSEMBLY >

[5MT: RS5F91R]

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• Be careful with the orientation of 1st-2nd coupling sleeve.

• Be careful with the orientation of 3rd-4th synchronizer hub.

• Replace 3rd-4th synchronizer hub and 3rd-4th coupling

sleeve as a set.

• Be careful with the orientation of insert key (1) and spring (2).

Inspection

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INSPECTION AFTER DISASSEMBLY

Mainshaft and Gear

Check the following items and replace if necessary.

• Damage, peeling, uneven wear, and distortion of shaft.

• Excessive wear, damage, and peeling of gear.

Synchronizer

Check the following items and replace if necessary.

(A)

: 2nd main gear side

(B)

: 1st main gear side

PCIB1567E

(A)

: 4th main gear side

(B)

: 3rd main gear side

PCIB1565E

PCIB1564E

SCIA1762J