Infiniti I30 (A33). Manual — part 82
SAT550G
DISASSEMBLY
NHAT0142
I
Remove valves at retainer plate.
For removal procedures, refer to “DISASSEMBLY”, “Control
Valve Upper Body”, AT-321.
SAT138D
INSPECTION
NHAT0143
Valve Springs
NHAT0143S01
I
Check each valve spring for damage or deformation. Also
measure free length and outer diameter.
Inspection standard:
Refer to SDS, AT-383.
I
Replace valve springs if deformed or fatigued.
Control Valves
NHAT0143S02
I
Check sliding surfaces of control valves, sleeves and plugs for
damage.
SAT550A
ASSEMBLY
NHAT0144
I
Install control valves.
For installation procedures, refer to “ASSEMBLY”, “Control
Valve Upper Body”, AT-322.
SAT089F
Retainer Plate (Lower body)
NHAT0144S01
Unit: mm (in)
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
I
Install proper retainer plates.
Refer to “Control Valve Lower Body”, AT-324.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Control Valve Lower Body (Cont’d)
AT-325
Reverse Clutch
COMPONENTS
NHAT0145
SAT430IA
SAT092F
DISASSEMBLY
NHAT0146
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:
I
D-ring might be damaged.
I
Oil seal might be damaged.
I
Fluid might be leaking past piston check ball.
SAT093F
2.
Remove snap ring.
3.
Remove drive plates, driven plates, retaining plate, and dish
plates.
SAT094F
4.
Set Tool on spring retainer and remove snap ring from reverse
clutch drum while compressing return springs.
I
Set Tool directly over springs.
I
Do not expand snap ring excessively.
5.
Remove spring retainer and return springs.
REPAIR FOR COMPONENT PARTS
Reverse Clutch
AT-326
SAT096F
6.
Remove piston from reverse clutch drum by turning it.
7.
Remove D-ring and oil seal from piston.
INSPECTION
NHAT0147
Reverse Clutch Snap Ring, Spring Retainer and Return
Springs
NHAT0147S01
I
Check for deformation, fatigue or damage.
If necessary, replace.
SAT162D
Reverse Clutch Drive Plates
NHAT0147S02
I
Check facing for burns, cracks or damage.
I
Measure thickness of facing.
Thickness of drive plate:
Standard value: 1.6 mm (0.063 in)
Wear limit: 1.4 mm (0.055 in)
I
If not within wear limit, replace.
SAT163D
Reverse Clutch Dish Plates
NHAT0147S03
I
Check for deformation or damage.
I
Measure thickness of dish plate.
Thickness of dish plate: 3.08 mm (0.1213 in)
I
If deformed or fatigued, replace.
Reverse Clutch Piston
NHAT0147S04
I
Make sure that check balls are not fixed.
I
Apply compressed air to check ball oil hole opposite the return
spring. Make sure there is no air leakage.
I
Apply compressed air to oil hole on return spring side to make
sure that air leaks past ball.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Reverse Clutch (Cont’d)
AT-327
SAT097FB
ASSEMBLY
NHAT0148
1.
Install D-ring and oil seal on piston.
I
Take care with the direction of oil seal.
I
Apply ATF to both parts.
SAT096F
2.
Install piston assembly by turning it slowly.
I
Apply ATF to inner surface of drum.
SAT094F
3.
Install return springs and spring retainer on piston.
4.
Set Tool on spring retainer and install snap ring while com-
pressing return springs.
I
Set Tool directly over return springs.
SAT093F
5.
Install drive plates, driven plates, retaining plate and dish
plates.
I
Take care with order of plates.
6.
Install snap ring.
SAT105F
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-384.
REPAIR FOR COMPONENT PARTS
Reverse Clutch (Cont’d)
AT-328
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