Page 2537 of 3833
REPAIR FOR COMPONENT PARTS
AT-459
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
INSPECTION
Valve Spring
●Measure free length and outer diameter of each valve spring.
Also check for damage or deformation.
●Replace valve springs if deformed or fatigued.
Control Valves
●Check sliding surfaces of valves, sleeves and plugs.
ASSEMBLY
●Lay control valve body down when installing valves. Do not
stand the control valve body upright.
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.
●Wrap a small screwdriver with vinyl tape and use it to insert
the valves into their proper positions.Inspection standard :Refer to AT-521, "
SERVICE
DATA AND SPECIFICATIONS
(SDS)" .
SAT138D
SAT139D
SAT140DA
SAT141D
Page 2538 of 3833
AT-460
[ALL]
REPAIR FOR COMPONENT PARTS
1-2 Accumulator Valve
●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.
1. Install retainer plates.
●While pushing plug or return spring, install retainer plate.
Retainer Plate (Upper Body)
Unit: mm (in)
●Install proper retainer plates.
Refer to AT- 4 5 7 , "
Control Valve Upper Body" .
SAT142D
SAT143D
No. Name of control valve Width A Length B
22 Pilot valve
6.0 (0.236)21.5 (0.846) 30 1st reducing valve
34 3-2 timing valve
17 Torque converter relief valve
9 1-2 accumulator valve
40.5 (1.59)
25 1-2 accumulator piston valve
21 Overrun clutch reducing valve
24.0 (0.945)
5 Cooler check valve
14 Torque converter clutch control valve 28.0 (1.102)
SAT086F
Page 2539 of 3833
REPAIR FOR COMPONENT PARTS
AT-461
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
Control Valve Lower BodyECS004M4
COMPONENTS
Apply ATF to all components before installation.
1. Lower body 2. Retainer plate 3. Return spring
4. Piston 5. Parallel pin 6. Sleeve
7. Return spring 8. Pressure modifier valve 9. Retainer plate
10. Plug 11. Shift valve B 12. Return spring
13. Manual valve 14. Pressure regulator valve 15. Return spring
16. Spring seat 17. Plug 18. Sleeve
19. Retainer plate 20. Return spring 21. Overrun clutch control valve
22. Plug 23. Retainer plate 24. Return spring
25. Accumulator control valve 26. Plug 27. Retainer plate
28. Shift valve A 29. Return spring 30. Retainer plate
31. Shuttle valve 32. Return spring 33. Plug
34. Plug 35. Retainer plate
SAT773J
Page 2540 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual AT-462
[ALL]
REPAIR FOR COMPONENT PARTS
DISASSEMBLY
●Remove valves at retainer plate.
For removal procedures, refer to “DISASSEMBLY”,AT- 4 5 7 ,
"Control Valve Upper Body" .
INSPECT NISSAN X-TRAIL 2001 Service Repair Manual AT-462
[ALL]
REPAIR FOR COMPONENT PARTS
DISASSEMBLY
●Remove valves at retainer plate.
For removal procedures, refer to “DISASSEMBLY”,AT- 4 5 7 ,
"Control Valve Upper Body" .
INSPECT](/manual-img/5/57405/w960_57405-2539.png)
AT-462
[ALL]
REPAIR FOR COMPONENT PARTS
DISASSEMBLY
●Remove valves at retainer plate.
For removal procedures, refer to “DISASSEMBLY”,AT- 4 5 7 ,
"Control Valve Upper Body" .
INSPECTION
Valve Springs
●Check each valve spring for damage or deformation. Also mea-
sure free length and outer diameter.
●Replace valve springs if deformed or fatigued.
Control Valves
●Check sliding surfaces of control valves, sleeves and plugs for damage.
ASSEMBLY
●Install control valves.
For installation procedures, refer to “ASSEMBLY”, AT- 4 5 7 ,
"Control Valve Upper Body" .
Retainer Plate (Lower Body)
Unit: mm (in)
●Install proper retainer plates.
Refer to AT- 4 6 1 , "
Control Valve Lower Body" .
SAT550G
Inspection standard :Refer to AT- 5 2 1 , "SERVICE DATA
AND SPECIFICATIONS (SDS)" .
SAT138D
SAT550A
No. Name of control valve and plug Width A Length B Type
19 Pressure regulator valve
6.0
(0.236)28.0
(1.102)I 27 Accumulator control valve
30 Shift valve A
23 Overrun clutch control valve
2 Pressure modifier valve
35 Shuttle valve
9 Shift valve B — — II
SAT089F
Page 2541 of 3833
REPAIR FOR COMPONENT PARTS
AT-463
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
Reverse ClutchECS004M5
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.
●Oil seal might be damaged.
●Fluid might be leaking past piston check ball.
2. Remove snap ring.
3. Remove drive plates, driven plates, retaining plate, and dish
plates.
4. Set Tool on spring retainer and remove snap ring from reverse
clutch drum while compressing return springs.
●Set Tool directly over springs.
●Do not expand snap ring excessively.
5. Remove spring retainer and return springs.
SAT430IA
SAT092F
SAT093F
SAT094FC
Page 2542 of 3833
AT-464
[ALL]
REPAIR FOR COMPONENT PARTS
6. Remove piston from reverse clutch drum by turning it.
7. Remove D-ring and oil seal from piston.
INSPECTION
Reverse Clutch Snap Ring, Spring Retainer and Return Springs
●Check for deformation, fatigue or damage.
If necessary, replace.
Reverse Clutch Drive Plates
●Check facing for burns, cracks or damage.
●Measure thickness of facing.
●If not within wear limit, replace.
Reverse Clutch Dish Plates
●Check for deformation or damage.
●Measure thickness of dish plate.
●If deformed or fatigued, replace.
Reverse Clutch Piston
●Make sure that check balls are not fixed.
●Apply compressed air to check ball oil hole opposite the 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.
SAT096F
Thickness of drive plate:
Standard value: 1.6 mm (0.063 in)
Wear limit: 1.4 mm (0.055 in)
SAT162D
Thickness of dish plate: 3.08 mm (0.1213 in)
SAT163D
Page 2543 of 3833
REPAIR FOR COMPONENT PARTS
AT-465
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
ASSEMBLY
1. Install D-ring and oil seal on piston.
●Take care with the direction of oil seal.
●Apply ATF to both parts.
2. Install piston assembly by turning it slowly.
●Apply ATF to inner surface of drum.
3. Install return springs and spring retainer on piston.
4. Set Tool on spring retainer and install snap ring while compress-
ing return springs.
●Set Tool directly over return springs.
5. Install drive plates, driven plates, retaining plate and dish plates.
●Take care with order of plates.
6. Install snap ring.
SAT097FB
SAT096F
SAT094FC
SAT093F
Page 2544 of 3833
AT-466
[ALL]
REPAIR FOR COMPONENT PARTS
7. Measure clearance between retaining plate and snap ring. If not
within allowable limit, select proper retaining plate.
8. Check operation of reverse clutch.
Refer to “DISASSEMBLY”, AT-463, "
Reverse Clutch" .
High ClutchECS004M6
COMPONENTS
DISASSEMBLY
1. Check operation of high clutch.
a. Apply compressed air to oil hole of input shaft with nylon cloth.
●Stop up hole on opposite side of input shaft 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.
●Oil seal might be damaged.
●Fluid might be leaking past piston check ball.Specified clearance:
Standard: 0.5 - 0.8mm (0.020 - 0.031 in)
Allowable limit: 1.2 mm (0.047 in)
Retaining plate:
Refer to AT-521, "
SERVICE DATA AND SPECIFICA-
TIONS (SDS)" .
SAT105F
SAT092F
SAT774J
SAT176D