NISSAN NAVARA 2005 Repair Workshop Manual

DISASSEMBLY
AT-263
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DISASSEMBLYPFP:31020
DisassemblyECS00G3E
CAUTION:
Do not disassemble parts behind drum support. Refer toAT-14, "
Cross-Sectional View (2WD Models)"
,AT-15, "Cross-Sectional View (4WD Models)".
1. Drain ATF through drain hole.
2. Remove torque converter by holding it firmly and turing while
pulling straight out.
3. Check torque converter one-way clutch using a check tool as
showninthefigure.
a. Insert a check tool into the groove of bearing support built into
one-way clutch outer race.
b. When fixing bearing support with a check tool, rotate one-way
clutch spline using a screwdriver.
c. Make sure that inner race rotates clockwise only. If not, replace
torque converter assembly.
4. Remove converter housing from transmission case.
CAUTION:
Be careful not to scratch converter housing.
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AT-264
DISASSEMBLY
5. Remove O-ring from input clutch assembly.
6. Remove tightening bolts for oil pump assembly and transmis-
sion case.
7. Attach the sliding hammers to oil pump assembly and extract it
evenly from transmission case.
CAUTION:
lFully tighten the sliding hammer screws.
lMake sure that bearing race is installed to oil pump
assembly edge surface.
8. Remove O-ring from oil pump assembly.
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DISASSEMBLY
AT-265
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9. Remove bearing race from oil pump assembly.
10. Remove needle bearing from front sun gear.
11. Remove front sun gear assembly from front carrier assembly.
NOTE:
Remove front sun gear by rotating left/right.
12. Remove seal rings from input clutch assembly.
13. Remove front carrier assembly, input clutch assembly and rear
internal gear as a unit.
CAUTION:
Be careful to remove it with needle bearing.
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AT-266
DISASSEMBLY
14. Loosen lock nut and remove band servo anchor end pin from
transmission case.
15. Remove brake band from transmission case.
lTo prevent brake linings from cracking or peeling, do not
stretch the flexible band unnecessarily. When removing
brake band, always secure it with a clip as shown in the
figure at right.
Leave the clip in position after removing the brake band.
lCheck brake band facing for damage, cracks, wear or
burns.
16. Remove mid carrier assembly and rear carrier assembly as a
unit.
17. Remove mid carrier assembly from rear carrier assembly.
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DISASSEMBLY
AT-267
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18. Remove needle bearing (front side) from mid carrier assembly.
19. Remove needle bearing (rear side) from mid carrier assembly.
20. Remove bearing race from rear carrier assembly.
21. Remove needle bearing from rear carrier assembly.
22. Remove mid sun gear assembly, rear sun gear assembly and
high and low reverse clutch hub as a unit.
CAUTION:
Be careful to remove them with bearing races and needle
bearing.
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AT-268
DISASSEMBLY
23. Remove high and low reverse clutch assembly from direct clutch
assembly.
CAUTION:
Make sure that needle bearing is installed to high and low
reverse clutch assembly edge surface.
24. Remove direct clutch assembly from reverse brake.
25. Remove needle bearing from drum support.
26. Remove snap ring from A/T assembly harness connector.
27. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
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DISASSEMBLY
AT-269
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28. Remove oil pan and oil pan gasket.
29. Check foreign materials in oil pan to help determine causes of
malfunction. If the A/T fluid is very dark, smells burned, or con-
tains foreign particles, the frictional material (clutches, band)
may need replacement. A tacky film that will not wipe clean indi-
cates varnish build up. Varnish can cause valves, servo, and
clutches to stick and can inhibit pump pressure.
lIf friction material is detected, replace radiator after repair
of A/T. Refer toCO-11, "
RADIATOR".
30. Remove magnets from oil pan.
31. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
32. Straighten terminal clips to free terminal cord assembly and A/T
fluid temperature sensor 2 harness.
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AT-270
DISASSEMBLY
33. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
34. Straighten terminal clips to free revolution sensor harness.
35. Remove bolts A, B and C from control valve with TCM.
36. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with manual valve notch and
manual plate height. Remove it vertically.
37. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
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Bolt symbol Length [mm (in)] Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
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DISASSEMBLY
AT-271
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38. Remove bracket from A/T fluid temperature sensor 2.
39. Remove O-ring from A/T assembly harness connector.
40. Disconnect TCM connectors.
CAUTION:
Be careful not to damage connectors.
41. Remove A/T assembly harness connector from control valve
with TCM using a flat-bladed screwdriver.
42. Disconnect TCM connector and park/neutral position switch
connector.
CAUTION:
Be careful not to damage connectors.
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AT-272
DISASSEMBLY
43. Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to
the following procedures.
a.2WD models
i. Remove tightening bolts for rear extension assembly and trans-
mission case.
lSelf-sealing bolt (1)
:Bolt(10)
ii. Tap rear extension assembly with soft hammer.
iii. Remove rear extension assembly from transmission case. (With
needle bearing.)
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