NISSAN TEANA 2003 Service Manual

REPAIR FOR COMPONENT PARTS
AT-293
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Control Valve Lower BodyBCS001ON
COMPONENTS
SCIA2959J

AT-294
REPAIR FOR COMPONENT PARTS

DISASSEMBLY
Remove valves at retainer plate.
For removal procedures, refer to AT- 2 9 0 , "
DISASSEMBLY" .
INSPECTION
Valve Springs

Check each valve spring for damage or deformation. Also mea-
sure free length and outer diameter. Refer to AT- 3 6 4 , "
Control
Va l v e s" .

Replace valve springs if deformed or fatigued.
Control Valves
Check sliding surfaces of control valves, sleeves and plugs for damage. Replace if necessary.
ASSEMBLY
CAUTION:

Apply ATF to all components before installation.

Lay control valve body down when installing valves. Do not
stand control valve body upright.
1. Retainer plate 2. Pressure modifier piston spring 3. Pressure modifier piston
4. Parallel pin 5. Sleeve 6. Pressure modifier valve spring
7. Pressure modifier valve 8. Control valve lower body 9. Manual valve
10. Pressure regulator valve 11. Pressure regulator valve spring 12. Spring seat
13. Plug 14. Retainer plate 15. Sleeve
16. Overrun clutch control valve spring 17. Overrun clutch control valve 18. Plug
19. Retainer plate 20. Accumulator control valve spring 21. Accumulator control valve
22. Plug 23. Retainer plate 24. Retainer plate
25. Shift valve A spring 26. Shift valve A 27. Retainer plate
28. Plug 29. Shuttle plug 30. Shuttle valve spring
31. Shuttle valve 32. Shift valve B spring 33. Shift valve B
34. Plug 35. Retainer plate
SCIA4978E
SAT138D
SAT139D

REPAIR FOR COMPONENT PARTS
AT-295
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Install control valves.
For installation procedures, refer to AT- 2 9 1 , "
ASSEMBLY" .
Retainer Plate (Control Valve Lower Body)
Install proper retainer plates. Refer to AT- 2 9 3 , "COMPONENTS" .
Unit: mm (in)
SCIA4978E

Loca
tionName of control valve and plug Width A Length B Type
L3 Pressure regulator valve
6.0
(0.236)28.0
(1.102)I L5 Accumulator control valve
L6 Shift valve A
L4 Overrun clutch control valve
L13 Pressure modifier valve
L7 Shuttle valve
L12 Shift valve B17.0
(0.669)24.0
(0.945)II
SAT089F

AT-296
REPAIR FOR COMPONENT PARTS

Reverse ClutchBCS001OO
COMPONENTS
DISASSEMBLY
1. Check operation of reverse clutch
a. Install seal ring onto drum support of oil pump cover and install
reverse clutch assembly. Apply compressed air to oil hole.
b. Check to see that retaining plate moves to snap ring.
c. If retaining plate does not contact snap ring:

D-ring might be damaged.

Seal lip might be damaged.

Fluid might be leaking past piston check ball.
2. Remove snap ring with flat-bladed screwdriver.
3. Remove drive plates, driven plates, retaining plate and dish
plates.
1. Reverse clutch drum 2. D-ring 3. Seal lip
4. Reverse clutch piston 5. Return spring 6. Spring retainer
7. Snap ring 8. Dish plate 9. Driven plate
10. Retaining plate 11. Snap ring 12. Drive plate
SCIA3889E
SCIA3316E
SCIA4886E

REPAIR FOR COMPONENT PARTS
AT-297
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4. Set SST on spring retainer, and remove snap ring from reverse
clutch drum while compressing return spring.
CAUTION:

Set SST directly over return spring.

Do not expand snap ring excessively.
5. Remove spring retainer and return spring from reverse clutch
drum.
6. Remove reverse clutch piston from reverse clutch drum by turn-
ing it.
7. Remove D-ring and seal lip from reverse clutch piston.
INSPECTION
Reverse Clutch Snap Rings, Return Spring and Spring Retainer
Check for deformation, fatigue or damage. Replace if necessary.
Reverse Clutch Drive Plates

Check facing for burns, cracks or damage. Replace if necessary.

Measure thickness of facing.
CAUTION:

Measure the thickness at 3 locations and find the aver-
age.

Inspect all drive plates.

Replace if the thickness is below the allowable limit.
Reverse Clutch Dish Plates

Check for damage or wear.

Measure thickness of dish plate. Replace if damaged, worn or
deformed.
Reverse Clutch Piston

Make sure that check balls are not fixed.

Apply compressed air to check ball oil hole opposite return spring. Make sure there is no air leakage.

Apply compressed air to oil hole on return spring side to make sure that air leaks past ball.
SCIA7795E
SCIA3319E
Thickness of drive plate
Standard and allowable limit:
Refer to AT- 3 6 6 , "
REVERSE CLUTCH" .
SAT162D
Thickness of dish plate: 2.96 mm (0.1165 in)
SAT163D

AT-298
REPAIR FOR COMPONENT PARTS

ASSEMBLY
1. Install D-ring (1) and seal lip (2) on reverse clutch piston (3).
CAUTION:
Be careful to direction of seal lip (2).
2. Install reverse clutch piston by reverse clutch drum by turning it
slowly.
CAUTION:
Apply ATF to inner surface of reverse clutch drum.
3. Install return spring and spring retainer on reverse clutch piston.
4. Set SST on spring retainer, and install snap ring while com-
pressing return spring.
CAUTION:

Set SST directly over return spring.

Do not expand snap ring excessively.
SCIA7812E
SCIA3319E
SCIA7795E

REPAIR FOR COMPONENT PARTS
AT-299
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5. Install drive plates, driven plates, retaining plate and dish plates.
Refer to AT- 3 6 6 , "
REVERSE CLUTCH" .
CAUTION:
Be careful to order of plates.
NOTE:
Install two dish plates fitting each installation direction with
reverse clutch drum groove displaced slightly.
6. Install snap ring with a flat-bladed screwdriver.
SCIA4888E
SAT254E
SCIA4886E

AT-300
REPAIR FOR COMPONENT PARTS

7. Measure clearance between retaining plate and snap ring with
feeler gauge. If not within allowable limit, select proper retaining
plate. Refer to “Parts Information” for retaining plate selection.
8. Check operation of reverse clutch. Refer to AT- 2 9 6 , "
DISAS-
SEMBLY" . Standard and allowable limit:
Refer to AT- 3 6 6 , "
REVERSE CLUTCH" .
SCIA3321E
SCIA3316E

REPAIR FOR COMPONENT PARTS
AT-301
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High ClutchBCS001OP
COMPONENTS
DISASSEMBLY
1. Check operation of high clutch.
a. Apply compressed air to oil hole of input shaft assembly (high
clutch drum) with nylon cloth.
CAUTION:
Stop up hole on opposite side of input shaft assembly (high
clutch drum) with nylon cloth.
b. Check to see that retaining plate moves to snap ring.
c. If retaining plate does not contact snap ring:

D-ring might be damaged.

Fluid might be leaking past piston check ball.
2. Remove seal rings from input shaft assembly (high clutch drum).
1. Seal ring 2. Driven plate 3. Retaining plate
4. Snap ring 5. Drive plate 6. Snap ring
7. Spring retainer assembly 8. D-ring 9. D-ring
10. High clutch Piston 11. Input shaft assembly (high clutch
drum)
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-10, "
Components" .
SCIA7806E
SAT176D
SCIA4890E

AT-302
REPAIR FOR COMPONENT PARTS

3. Remove snap ring with flat-bladed screwdriver.
4. Remove drive plates, driven plates and retaining plate.
5. Set SST on spring retainer assembly, and remove snap ring
from input shaft assembly (high clutch drum) while compressing
return springs.
CAUTION:

Set SST directly over return springs.

Do not expand snap ring excessively.
6. Remove spring retainer assembly.
7. Remove high clutch piston from input shaft assembly (high
clutch drum) by turning it.
8. Remove D-rings from high clutch piston.
SCIA4891E
SAT108FB
S AT 111 F
SCIA4441E