NISSAN ALMERA 2001 Service Manual

SAT139D
ASSEMBLYNJAT0136+Lay control valve body down when installing valves. Do
not stand the control valve body upright.
SAT140DA
1. Lubricate the control valve body and all valves with ATF. Install
control valves by sliding them carefully into their bores.
+Be careful not to scratch or damage valve body.
SAT141D
+Wrap a small screwdriver with vinyl tape and use it to insert the
valves into their proper positions.
SAT142DA
1-2 Accumulator ValveNJAT0136S01+Install 1-2 accumulator valve. Align 1-2 accumulator retainer
plate from opposite side of control valve body.
+Install return spring, 1-2 accumulator piston and plug.
SAT143D
1. Install retainer plates.
+Install retainer plate while pushing plug or return spring.
REPAIR FOR COMPONENT PARTS
Control Valve Upper Body (Cont'd)
AT-399

SAT086F
Retainer Plate (for control valve upper body)NJAT0136S02Refer to AT-397.
Unit: mm (in)
Name of valve and piston No. Length A Length B
Pilot valve 22
6.0 (0.236)21.5 (0.846)
1-2 accumulator valve 17
40.5 (1.59)
1-2 accumulator piston 25
1st reducing valve 30 21.5 (0.846)
Overrun clutch reducing valve 5 24.0 (0.945)
Torque converter relief valve 8 21.5 (0.846)
Torque converter clutch control valve 13 28.0 (1.102)
3-2 timing valve 34 21.5 (0.846)
Cooler check valve 21 24.0 (0.945)
+Install proper retainer plates.
REPAIR FOR COMPONENT PARTS
Control Valve Upper Body (Cont'd)
AT-400

Control Valve Lower Body
COMPONENTS=NJAT0137Numbers preceding valve springs correspond with those shown in SDS table on page AT-474.
SAT013K
1. Control valve lower body
2. Shift valve B spring
3. Shift valve B
4. Plug
5. Retainer plate
6. Pressure modifier valve
7. Pressure modifier valve spring
8. Parallel pin
9. Sleeve
10. Piston
11. Pressure modifier piston spring
12. Retainer plate13. Manual valve
14. Retainer plate
15. Sleeve
16. Plug
17. Spring seat
18. Pressure regulator valve spring
19. Pressure regulator valve
20. Retainer plate
21. Plug
22. Overrun clutch control valve
23. Overrun clutch control valve spring
24. Retainer plate25. Plug
26. Accumulator control valve
27. Accumulator control valve spring
28. Retainer plate
29. Shift valve A spring
30. Shift valve A
31. Retainer plate
32. Plug
33. Plug
34. Shuttle valve spring
35. Shuttle control valve
REPAIR FOR COMPONENT PARTS
Control Valve Lower Body
AT-401

SAT872J
DISASSEMBLYNJAT0138Remove valves at retainer plate.
For removal procedures, refer to AT-389.
SAT138D
INSPECTIONNJAT0139Valve SpringsNJAT0139S01+Check each valve spring for damage or deformation. Also
measure free length and outer diameter.
Inspection standard:
Refer to SDS, AT-474.
+Replace valve springs if deformed or fatigued.
Control ValvesNJAT0139S02+Check sliding surfaces of control valves, sleeves and plugs for
damage.
SAT872J
ASSEMBLYNJAT0140+Install control valves.
For installation procedures, refer to AT-399.
SAT089F
Retainer Plate (for control valve lower body)NJAT0140S01Refer to AT-401.
Unit: mm (in)
Name of control valve No. Length A Length B Type
Pressure regulator valve 14
6.0
(0.236)28.0
(1.102)I Accumulator control valve 24
Shift valve A 28
Overrun clutch control valve 20
Pressure modifier valve 12
Shuttle control valve 31
Shift valve B 5 Ð Ð II
+Install proper retainer plates.
REPAIR FOR COMPONENT PARTS
Control Valve Lower Body (Cont'd)
AT-402

Reverse Clutch
COMPONENTS=NJAT0141
SAT485JB
SAT155D
DISASSEMBLYNJAT01421. 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.
+Oil seal might be damaged.
+Fluid might be leaking past piston check ball.
SAT156D
2. Remove snap ring.
3. Remove drive plates, driven plates, retaining plate, and dish
plates.
SAT157D
4. Set Tool on spring retainer and remove snap ring from reverse
clutch drum while compressing return springs.
+Set Tool directly above springs.
+Do not expand snap ring excessively.
5. Remove spring retainer and return springs.
REPAIR FOR COMPONENT PARTS
Reverse Clutch
AT-403

SAT301E
+Do not remove return springs from spring retainer.
SAT159D
6. Remove piston from reverse clutch drum by turning it.
SAT138E
7. Remove D-ring and oil seal from piston.
INSPECTIONNJAT0143Reverse Clutch Snap Ring, Spring Retainer and Return
Springs
NJAT0143S01+Check for deformation, fatigue or damage.
+Replace if necessary.
+When replacing spring retainer and return springs,
replace them as a set.
SAT162D
Reverse Clutch Drive PlatesNJAT0143S02+Check facing for burns, cracks or damage.
+Measure thickness of facing.
Thickness of drive plate:
Standard value: 2.0 mm (0.079 in)
Wear limit: 1.8 mm (0.071 in)
+If not within wear limit, replace.
REPAIR FOR COMPONENT PARTS
Reverse Clutch (Cont'd)
AT-404

SAT163D
Reverse Clutch Dish PlatesNJAT0143S03+Check for deformation or damage.
+Measure thickness of dish plate.
Thickness of dish plate ªtº: 2.8 mm (0.110 in)
+If deformed or fatigued, replace.
SAT164D
Reverse Clutch PistonNJAT0143S04+Make sure check balls are not fixed.
+Apply compressed air to check ball oil hole opposite the return
spring. Make sure that there is no air leakage.
+Apply compressed air to oil hole on return spring side to make
sure air leaks past ball.
SAT160DA
ASSEMBLYNJAT01441. Install D-ring and oil seal on piston.
+Take care with the direction of the oil seal.
+Apply ATF to both parts.
SAT159D
2. Install piston assembly by turning it slowly.
+Apply ATF to inner surface of drum.
SAT168D
3. Install return springs and spring retainer on piston.
For return spring, refer to AT-477.
REPAIR FOR COMPONENT PARTS
Reverse Clutch (Cont'd)
AT-405

SAT157D
4. Set Tool on spring retainer and install snap ring while com-
pressing return springs.
+Set Tool directly above return springs.
SAT170D
5. Install drive plates, driven plates, retaining plate and dish
plates.
+Do not align the projections of any two dish plates.
+Take care with the order and direction of plates.
SAT156D
6. Install snap ring.
SAT174D
7. Measure clearance between retaining plate and snap ring. If
not within allowable limit, select proper retaining plate.
Specified clearance:
Standard: 0.5 - 0.8 mm (0.020 - 0.031 in)
Allowable limit: 1.2 mm (0.047 in)
Retaining plate: Refer to SDS, AT-474.
SAT173D
8. Check operation of reverse clutch.
Refer to ªReverse Clutchº, AT-403.
REPAIR FOR COMPONENT PARTS
Reverse Clutch (Cont'd)
AT-406

High Clutch
COMPONENTS=NJAT0145
SAT034K
SAT176D
DISASSEMBLYNJAT01461. Check operation of high clutch.
a. Apply compressed air to oil hole of input shaft.
+Stop up a hole on opposite side of input shaft.
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.
+Oil seal might be damaged.
+Fluid might be leaking past piston check ball.
SAT177D
2. Remove seal rings from input shaft.
REPAIR FOR COMPONENT PARTS
High Clutch
AT-407

SAT178D
3. Remove snap ring.
4. Remove drive plates, driven plates and retaining plate.
SAT617H
5. Set Tool on spring retainer and remove snap ring from high
clutch drum while compressing return springs.
+Set Tool directly above springs.
+Do not expand snap ring excessively.
6. Remove spring retainer and return springs.
SAT302E
+Do not remove return spring from spring retainer.
SAT189D
7. Remove piston from high clutch drum by turning it.
SAT139E
8. Remove D-ring and oil seal from piston.
REPAIR FOR COMPONENT PARTS
High Clutch (Cont'd)
AT-408