lock INFINITI QX4 2001 Factory Repair Manual

SAT988A
16. Remove input shaft and oil pump gasket.
SAT029B
17. Remove brake band and band strut.
a. Loosen lock nut and remove band servo anchor end pin from
transmission case.
SAT986A
b. Remove brake band and band strut from transmission case.
SAT655
c. Hold brake band in a circular shape with clip.
SAT030B
18. Remove front side clutch and gear components.
a. Remove clutch pack (reverse clutch, high clutch and front sun
gear) from transmission case.
DISASSEMBLY
AT-290

SAT039B
b. Apply compressed air to oil hole until band servo piston comes
out of transmission case.
IHold piston with a rag and gradually direct air to oil hole.
c. Remove return springs.
SAT040BA
d. Remove springs from accumulator pistons B, C and D.
e. Apply compressed air to each oil hole until piston comes out.
IHold piston with a rag and gradually direct air to oil hole.
Identification of accumulator pistons A B C D
Identification of oil holes a b c d
SAT523GA
f. Remove O-ring from each piston.
SAT041B
25. Remove manual shaft components, if necessary.
a. Hold width across flats of manual shaft (outside the transmis-
sion case) and remove lock nut from shaft.
SAT042B
b. Remove retaining pin from transmission case.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DISASSEMBLY
AT-295

SAT905A
8. After installing, check to assure that forward clutch hub rotates
clockwise.
Band Servo Piston Assembly
COMPONENTSNBAT0148
SAT161K
SAT909A
DISASSEMBLYNBAT01491. Block one oil hole in OD servo piston retainer and the center
hole in OD band servo piston.
2. Apply compressed air to the other oil hole in piston retainer to
remove OD band servo piston from retainer.
3. Remove D-ring from OD band servo piston.
SAT910A
4. Remove band servo piston assembly from servo piston
retainer by pushing it forward.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Rear Internal Gear and Forward Clutch Hub (Cont'd)
AT-333

SAT911A
5. Place piston stem end on a wooden block. While pushing
servo piston spring retainer down, remove E-ring.
SAT912A
6. Remove servo piston spring retainer, return spring C and pis-
ton stem from band servo piston.
SAT913A
7. Remove E-ring from band servo piston.
SAT914A
8. Remove servo cushion spring retainer from band servo piston.
9. Remove D-rings from band servo piston.
10. Remove O-rings from servo piston retainer.
SAT915A
INSPECTIONNBAT0150Pistons, Retainers and Piston StemNBAT0150S01ICheck frictional surfaces for abnormal wear or damage.
REPAIR FOR COMPONENT PARTS
Band Servo Piston Assembly (Cont'd)
AT-334

SAT912A
5. Install servo piston spring retainer, return spring C and piston
stem onto band servo piston.
SAT921A
6. Place piston stem end on a wooden block. While pushing
servo piston spring retainer down, install E-ring.
SAT922A
7. Install band servo piston assembly onto servo piston retainer
by pushing it inward.
SAT923A
8. Install D-ring on OD band servo piston.
IApply ATF to D-ring.
SAT924A
9. Install OD band servo piston onto servo piston retainer by
pushing it inward.
REPAIR FOR COMPONENT PARTS
Band Servo Piston Assembly (Cont'd)
AT-336

SAT931A
Assembly (1)NBAT01551. Install manual shaft components.
a. Install oil seal onto manual shaft.
IApply ATF to oil seal.
IWrap threads of manual shaft with masking tape.
b. Insert manual shaft and oil seal as a unit into transmission
case.
c. Remove masking tape.
SAT932A
d. Push oil seal evenly and install it onto transmission case.
SAT933A
e. Align groove in shaft with retaining pin hole, then retaining pin
into position as shown in figure at left.
SAT901E
f. Install detent spring and spacer.
g. While pushing detent spring down, install manual plate onto
manual shaft.
SAT936A
h. Install lock nuts onto manual shaft.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ASSEMBLY
Assembly (1)
AT-339

SAT940A
d. Install band servo retainer onto transmission case.
SAT943A
4. Install rear side clutch and gear components.
a. Place transmission case in vertical position.
SAT944A
b. Slightly lift forward clutch drum assembly. Then slowly rotate it
clockwise until its hub passes fully over clutch inner race inside
transmission case.
SAT945A
c. Check to be sure that rotation direction of forward clutch
assembly is correct.
SAT946A
d. Install thrust washer onto front of overrun clutch hub.
IApply petroleum jelly to the thrust washer.
IInsert pawls of thrust washer securely into holes in over-
run clutch hub.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ASSEMBLY
Assembly (1) (Cont'd)
AT-341

SAT967A
b. Make sure needle bearing is on front of front planetary carrier.
IApply petroleum jelly to needle bearing.
c. Make sure needle bearing is on rear of front planetary carrier.
IApply petroleum jelly to bearing.
IPay attention to its direction Ð Black side goes to front.
SAT969A
d. While rotating forward clutch drum clockwise, install front plan-
etary carrier on forward clutch drum.
SAT970A
ICheck that portion A of front planetary carrier protrudes
approximately 2 mm (0.08 in) beyond portion B of forward
clutch assembly.
SAT971A
e. Make sure bearing races are on front and rear of clutch pack.
IApply petroleum jelly to bearing races.
ISecurely engage pawls of bearing races with holes in
clutch pack.
SAT973A
f. Install clutch pack into transmission case.
ASSEMBLY
Assembly (1) (Cont'd)
AT-346

Adjustment=NBAT0156When any parts listed in the following table are replaced, total end
play or reverse clutch end play must be adjusted.
Part name Total end play Reverse clutch end play
Transmission caseII
Low one-way clutch inner raceII
Overrun clutch hubII
Rear internal gearII
Rear planetary carrierII
Rear sun gearII
Front planetary carrierII
Front sun gearII
High clutch hubII
High clutch drumII
Oil pump coverII
Reverse clutch drum ÐI
SAT975A
1. Adjust total end play.
Total end play ªT
1º:
0.25 - 0.55 mm (0.0098 - 0.0217 in)
SAT976A
a. With needle bearing installed, place J34291-1 (bridge),
J34291-2 (legs) and the J34291-5 (gauging cylinder) onto oil
pump. The long ends of legs should be placed firmly on
machined surface of oil pump assembly. The gauging cylinder
should rest on top of the needle bearing. Lock gauging cylin-
der in place with set screw.
SAT977A
b. Install J34291-23 (gauging plunger) into gauging cylinder.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ASSEMBLY
Adjustment
AT-347

SAT978A
c. Install original bearing race inside reverse clutch drum. Place
shim selecting gauge with its legs on machined surface of
transmission case (no gasket). Allow gauging plunger to rest
on bearing race. Lock gauging plunger in place with set screw.
SAT979A
d. Remove Tool and use feeler gauge to measure gap between
gauging cylinder and gauging plunger. This measurement
should give exact total end play.
Total end play ªT
1º:
0.25 - 0.55 mm (0.0098 - 0.0217 in)
IIf end play is out of specification, decrease or increase thick-
ness of oil pump cover bearing race as necessary.
Available oil pump cover bearing race:
Refer to SDS, AT-360.
SAT980A
2. Adjust reverse clutch drum end play.
Reverse clutch drum end play ªT
2º:
0.55 - 0.90 mm (0.0217 - 0.0354 in)
SAT981A
a. Place J34291-1 (bridge), J34291-2 (legs) and J34291-5 (gaug-
ing cylinder) on machined surface of transmission case (no
gasket). Allow gauging cylinder to rest on front thrust surface
of reverse clutch drum. Lock cylinder in place with set screw.
SAT982AA
b. Install J34291-23 (gauging plunger) into gauging cylinder.
ASSEMBLY
Adjustment (Cont'd)
AT-348