Infiniti I30 (A33). Manual — part 81
SAT551G
DISASSEMBLY
NHAT0138
1.
Remove valves at retainer plates.
I
Do not use a magnetic pick-up tool.
SAT553G
a.
Use a screwdriver to remove retainer plates.
SAT554G
b.
Remove retainer plates while holding spring, plugs or sleeves.
I
Remove plugs slowly to prevent internal parts from jump-
ing out.
SAT137D
c.
Place mating surface of valve body face down, and remove
internal parts.
I
If a valve is hard to remove, place valve body face down
and lightly tap it with a soft hammer.
I
Be careful not to drop or damage valves and sleeves.
SAT138D
INSPECTION
NHAT0139
Valve Spring
NHAT0139S01
I
Measure free length and outer diameter of each valve spring.
Also check for damage or deformation.
Inspection standard:
Refer to SDS, AT-383.
I
Replace valve springs if deformed or fatigued.
Control Valves
NHAT0139S02
I
Check sliding surfaces of valves, sleeves and plugs.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Control Valve Upper Body (Cont’d)
AT-321
SAT139D
ASSEMBLY
NHAT0140
I
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.
I
Be careful not to scratch or damage valve body.
SAT141D
I
Wrap a small screwdriver with vinyl tape and use it to insert the
valves into their proper positions.
SAT142D
1-2 Accumulator Valve
NHAT0140S01
I
Install 1-2 accumulator valve. Align 1-2 accumulator retainer
plate from opposite side of control valve body.
I
Install return spring, 1-2 accumulator piston and plug.
SAT143D
1.
Install retainer plates.
I
While pushing plug or return spring, install retainer plate.
REPAIR FOR COMPONENT PARTS
Control Valve Upper Body (Cont’d)
AT-322
SAT086F
Retainer Plate (Upper body)
NHAT0140S02
Unit: mm (in)
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
38.5 (1.516)
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)
I
Install proper retainer plates.
Refer to “Control Valve Upper Body”, AT-320.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Control Valve Upper Body (Cont’d)
AT-323
Control Valve Lower Body
COMPONENTS
=NHAT0141
Apply ATF to all components before installation.
SAT773J
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
REPAIR FOR COMPONENT PARTS
Control Valve Lower Body
AT-324
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