NISSAN TIIDA 2009 Service Repair Manual

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5. Remove snap ring (1) using suitable tool.
6. Remove spacer, 5th baulk ring, 5th input gear (2), and spacer.
7. Remove snap ring (1) using suitable tool.
8. Remove spacer, 4th input gear (2), 4th baulk ring, and 3rd-4th synchronizer hub assembly (3).
9. Remove insert keys and 3rd-4th coupling sleeve from 3rd-4th synchronizer hub.
10. Remove snap ring (1).
11. Remove spacer, 3rd baulk ring, 3rd input gear (2).
12. Set a suitable puller to input shaft front bearing (1), and then remove input shaft front bearing.
INSPECTION AFTER DISASSEMBLY
Input shaft and gear Check the following items and replace if necessary. PCIB1753E
PCIB1752E

MT-78< SERVICE INFORMATION >
[RS6F94R]
INPUT SHAFT AND GEARS
• Damage, peeling, bend, uneven wear, and distortion of shaft.
• Excessive wear, damage, and peeling of gear.
Synchronizer
• Synchronizer hub and coupling sleeve Check the following items and replace if necessary.
- Breakage, damage, and unusual wear on contact surface of cou-
pling sleeve, synchronizer hub, and insert key.
- Coupling sleeve and synchronizer hub move smoothly.
• Baulk ring Check contact surface of baulk ring cam and insert key for exces-
sive wear, uneven wear, bend, and damage. Replace if necessary.
Bearing
Check bearing for damage and unsmooth rotation. Replace if neces-
sary.
ASSEMBLY
Note the following procedures, and assemble in the reverse order of disassembly.
CAUTION:
• Replace transaxle assembly when replacing input shaft.
• Never reuse snap ring.
• Check that snap ring is securely installed in a groove.
• Replace 3rd-4th coupling sleeve and 3rd-4th synchronizer hub as a set. SCIA7736E
SCIA1753J
SCIA0608J
MTF0041D

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• Replace 5th-6th coupling sleeve and
5th-6th synchronizer hub as a set.
• Be careful to install 3rd-4th synchronizer hub according to the
specified direction.
• Be careful to install 5th-6th synchronizer hub according to the
specified direction.
• Install input shaft front bearing (1) using a suitable drift (A).
• Install input shaft rear bearing (1) using a suitable drift (A) and the Tool (B).
• Apply gear oil to 3rd baulk ring, 4th baulk ring, 5th baulk ring, and 6th baulk ring. A : 3rd input gear side
B : 4th input gear side JPDIC0112ZZ

Disassembly
and Assembly " .
3. Loosen input shaft rear bearing bolt by a half turn.
4. Tighten input shaft rear bearing bolt to the specified torque of the 2nd step. Refer to MT-59, " Disassembly
and Assembly " .
Tool number A: KV32300QAM ( — )

MAINSHAFT AND GEARS
MT-81
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[RS6F94R] D
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MAINSHAFT AND GEARS
Disassembly and Assembly INFOID:0000000004305281
GENERAL PRECAUTIONS • Never reuse snap ring.
• Secure mainshaft in a vise with backplate, and then remove gears and snap rings.
• For installation and 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.
DISASSEMBLY 1. Remove snap ring (1) using suitable tool.
2. Remove 6th main gear (1) and mainshaft rear bearing inner race (2) according to the following procedures.
a. Set a suitable puller to 6th main gear.
b. Remove mainshaft rear bearing inner race and 6th main gear using the Tool (A).
3. Remove 4th main gear (1) and 5th main gear (2) according to the following procedures.
a. Set a suitable tool to 4th main gear.
b. Remove 5th main gear and 4th main gear using Tool (A).
4. Remove mainshaft adjusting shim. SCIA1755J
PCIB1745E
Tool number A: ST33052000 ( — )
PCIB1744E
Tool number A: ST33052000 ( — )
PCIB1743E

PCIB1741E
SCIA1753J

MAINSHAFT AND GEARS
MT-83
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[RS6F94R] D
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Check contact surface of baulk ring cam and insert key for exces-
sive wear, uneven wear, bend, and damage. Replace if necessary.
Bearing Check bearing for damage and unsmooth rotation. Replace if neces-
sary.
CAUTION:
• Replace mainshaft front bearing outer race and mainshaft
front bearing inner race as a set.
• Replace mainshaft rear bearin g inner race and mainshaft rear
bearing outer race as a set.
ASSEMBLY CAUTION:
• Select mainshaft rear bearing adjusting shim acco rding to the following procedures when replacing
mainshaft 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 r ear bearing adjusting shim.
• If new mainshaft adjusting shim is thicker th an 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 mainsh aft rear bearing adjusting shim, if the difference is smaller than
0.025 mm (0.0010 in).
• Replace transaxle assembly when replacing mainshaft.
1. Install mainshaft front bearing inner race (1) using the Tool (A).
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 synchronize r 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 synchroni zer hub and 1st-2nd coupling sleeve as a set. SCIA0608J
SPD715
Tool number A: ST36720030 ( — )
PCIB1733E

PCIB1737E

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9. Install 5th main gear (1) using Tool (A).
10. Install 6th main gear (1) using Tool (A).
11. Install mainshaft rear bearing inner race (1) usingTool (A). CAUTION:
Replace mainshaft rear bearing inner race and mainshaft
rear bearing outer race as a set.
12. Install snap ring. CAUTION:
Never reuse snap ring. Tool number A: KV32102700 ( — )

PCIB1759E
PCIB1757E