Nissan X-Trail 32. Manual - part 2027

TM-66

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: RS6F94R]

MAINSHAFT AND GEAR

MAINSHAFT AND GEAR

Exploded View

INFOID:0000000010842467

Mainshaft front bearing outer 
race

Mainshaft front bearing inner race

Mainshaft

1st main gear

1st inner baulk ring

1st synchronizer cone

1st outer baulk ring

1st-2nd coupling sleeve

Insert key

1st-2nd synchronizer hub

2nd outer baulk ring

2nd synchronizer cone

2nd inner baulk ring

2nd main gear

Bushing

3rd main gear

Mainshaft adjusting shim

4th main gear

5th main gear

6th main gear

Mainshaft rear bearing inner race

Mainshaft rear bearing outer race

Snap ring

Mainshaft rear bearing adjusting 
shim

: Always replace after every disassembly.

: Select with proper thickness.

: Apply gear oil.

: Replace the parts as a set.

SFIA3293E

MAINSHAFT AND GEAR

TM-67

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: RS6F94R]

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Disassembly and Assembly

INFOID:0000000010842468

DISASSEMBLY

CAUTION:

• Fix mainshaft in a vise with back plate, and then remove gears and snap rings.
• 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, move snap ring with flat pliers.

• Disassemble gear components putting direction marks on the

parts that never affect any functions.

1.

Remove snap ring 

.

2.

Remove 6th main gear and mainshaft rear bearing inner race, as per the following procedure.

a.

Set a separator (commercial service tool) to 6th main gear.

b.

Remove mainshaft rear bearing inner race 

 and 6th main gear

, using the drift (A) (SST: ST33052000).

3.

Remove 4th main gear and 5th main gear, as per the following procedure.

a.

Set a separator (commercial service tool) to 4th main gear.

b.

Remove 4th main gear 

 and 5th main gear 

, using the drift

(A) (SST: ST33052000).

4.

Remove mainshaft adjusting shim.

SCIA1755J

PCIB1745E

PCIB1744E

PCIB1743E

TM-68

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: RS6F94R]

MAINSHAFT AND GEAR

5.

Remove 1st main gear 

, 1st-2nd synchronizer hub assembly

, 2nd main gear 

, and 3rd main gear 

, as per the following

procedure.

a.

Set a separator (commercial service tool) to 1st main gear.

b.

Remove 3rd main gear, busing, 2nd main gear, 2nd inner baulk
ring, 2nd synchronizer cone, 2nd outer baulk ring, 1st-2nd syn-
chronizer hub assembly, 1st outer baulk ring, 1st synchronizer
cone, 1st inner baulk ring, and 1st main gear, using the drift (A)
(SST: ST33052000).

c.

Remove insert keys and 1st-2nd coupling sleeve from 1st-2nd
synchronizer hub.

6.

Remove mainshaft front bearing inner race, as per the following procedure.

a.

Set a separator (commercial service tool) to mainshaft front bearing inner race.

b.

Remove mainshaft front bearing inner race 

,, using the drift

(A) (SST: ST33052000).

ASSEMBLY

CAUTION:

• Select mainshaft rear bearing adjusting shim, as per the following procedure when replacing main-

shaft adjusting shim, 6th main gear, 5th main gear, or 4th main gear.

- Replace mainshaft adjusting shim.
• If new mainshaft adjusting shim is thinner than previous one, offset the thickness difference by

selecting thicker mainshaft rear bearing adjusting shim.

• If new mainshaft adjusting shim is thicker than previous one, offset the thickness difference by

selecting thinner mainshaft rear bearing adjusting shim.

- Replace 6th main gear, 5th main gear, or 4th main gear.
• Measure the thickness of the main gear used before and the new main gear.
• Increase the thickness of the mainshaft rear bearing adjusting shim, if the difference is smaller than

0.025 mm (0.0010 in).

• Replace transaxle assembly when replacing mainshaft.
• 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, move snap ring with flat pliers.

PCIB1742E

PCIB1741E

SCIA1755J

MAINSHAFT AND GEAR

TM-69

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: RS6F94R]

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1.

Install mainshaft front bearing inner race 

, using the drift (A)

(SST: ST36720030).

CAUTION:

Replace mainshaft front bearing outer race and mainshaft
front bearing inner race as a set.

2.

Apply gear oil to 1st inner baulk ring, 1st synchronizer cone, 1st
outer baulk ring, 2nd inner baulk ring, 2nd synchronizer cone,
and 2nd outer baulk ring.

CAUTION:

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

1st outer baulk ring as a set.

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

2nd outer baulk ring as a set.

3.

Install insert keys and 1st-2nd coupling sleeve to 1st-2nd synchronizer hub.

CAUTION:

Replace 1st-2nd synchronizer hub and 1st-2nd coupling sleeve as a set.

4.

Assemble 1st main gear 

, 1st inner baulk ring, 1st synchro-

nizer cone, 1st outer baulk ring, 1st-2nd synchronizer hub
assembly 

, 2nd inner baulk ring, 2nd synchronizer cone, and

2nd outer baulk ring then install bushing 

, using the drift (A)

(SST: KV32102700).

5.

Install 3rd main gear 

 and 2nd main gear 

, using the drift (A)

(SST: KV32102700).

6.

Measure dimension “L” as shown in the figure. Select mainshaft
adjusting shim 

 according to the following list, and then install

it to mainshaft.

Unit: mm (in)

PCIB1733E

PCIB1734E

PCIB1735E

: Mainshaft

: 3rd main gear

Dimension “L”

Mainshaft adjusting shim thickness

147.690 – 147.666 (5.8146 – 5.8136)

1.500 (0.0591)

147.665 – 147.641 (5.8136 – 5.8126)

1.525 (0.0600)

147.640 – 147.616 (5.8126 – 5.8116)

1.550 (0.0610)

147.615 – 147.591 (5.8116 – 5.8107)

1.575 (0.0620)

147.590 – 147.566 (5.8106 – 5.8097)

1.600 (0.0630)

147.565 – 147.541 (5.8096 – 5.8087)

1.625 (0.0640)

147.540 – 147.516 (5.8086 – 5.8077)

1.650 (0.0650)

PCIB1736E