INFINITI QX4 2001 Factory Service Manual

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

Parking Pawl Components
COMPONENTSNBAT0152
SAT558J
SAT226H
DISASSEMBLYNBAT01531. Slide return spring to the front of adapter case flange.
2. Remove return spring, parking pawl spacer and parking pawl
from adapter case.
3. Remove parking pawl shaft from adapter case.
SAT228H
4. Remove parking actuator support from adapter case.
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REPAIR FOR COMPONENT PARTS
Parking Pawl Components
AT-337

SAT998G
INSPECTIONNBAT0209Parking Pawl and Parking Actuator SupportNBAT0209S01ICheck contact surface of parking rod for wear.
Rear Extension Assembly (2WD model only)NBAT0209S02ICheck for free play between companion flange and output
shaft.
IMake sure bearings roll freely and are free from noise, cracks,
pitting or wear.
ICheck contact surface of output shaft for wear.
SAT229H
ASSEMBLYNBAT01541. Install parking actuator support onto adapter case.
2. Insert parking pawl shaft into adapter case.
3. Install return spring, pawl spacer and parking pawl onto park-
ing pawl shaft.
SAT226H
4. Bend return spring upward and install it onto adapter case.
REPAIR FOR COMPONENT PARTS
Parking Pawl Components (Cont'd)
AT-338

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.
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ASSEMBLY
Assembly (1)
AT-339

SAT523GA
2. Install accumulator piston.
a. Install O-rings onto accumulator piston.
IApply ATF to O-rings.
Accumulator piston O-rings
Unit: mm (in)
Accumulator A B C D
Small diameter end 29 (1.14) 32 (1.26) 45 (1.77) 29 (1.14)
Large diameter end 45 (1.77) 50 (1.97) 50 (1.97) 45 (1.77)
SAT938A
b. Install return spring for accumulator A onto transmission case.
Free length of return spring:
Refer to SDS, AT-357.
SAT939AA
c. Install accumulator pistons A, B, C and D.
IApply ATF to transmission case.
SAT941A
3. Install band servo piston.
a. Install return springs onto servo piston.
SAT942A
b. Install band servo piston onto transmission case.
IApply ATF to O-ring of band servo piston and transmis-
sion case.
c. Install gasket for band servo onto transmission case.
ASSEMBLY
Assembly (1) (Cont'd)
AT-340

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.
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ASSEMBLY
Assembly (1) (Cont'd)
AT-341

SAT947A
e. Install overrun clutch hub onto rear internal gear assembly.
SAT948A
f. Install needle bearing onto rear of overrun clutch hub.
IApply petroleum jelly to needle bearing.
SAT949A
g. Check that overrun clutch hub rotates as shown while holding
forward clutch hub.
SAT527G
h. Place transmission case into horizontal position.
SAT951A
i. Install rear internal gear, forward clutch hub and overrun clutch
hub as a unit onto transmission case.
ASSEMBLY
Assembly (1) (Cont'd)
AT-342

SAT952A
j. Install needle bearing onto rear internal gear.
IApply petroleum jelly to needle bearing.
SAT953A
k. Install bearing race onto rear of front internal gear.
IApply petroleum jelly to bearing race.
ISecurely engage pawls of bearing race with holes in front
internal gear.
SAT954A
l. Install front internal gear on transmission case.
SAT546J
5. Install rear extension assembly on transmission case (2WD
model only).
a. Install revolution sensor on rear extension.
b. Install rear extension gasket on transmission case.
c. Install parking rod on transmission case.
d. Install parking gear and needle bearing.
IInsert rear extension assembly into place while holding
parking gear and needle bearing by hand.
SAT216B
6. Install output shaft and parking gear (4WD model only).
a. Insert output shaft from rear of transmission case while slightly
lifting front internal gear.
IDo not force output shaft against front of transmission
case.
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ASSEMBLY
Assembly (1) (Cont'd)
AT-343

SAT957A
b. Carefully push output shaft against front of transmission case.
Install snap ring on front of output shaft.
ICheck to be sure output shaft cannot be removed in rear
direction.
SAT217B
c. Install needle bearing on transmission case.
IPay attention to its direction Ð Black side goes to rear.
IApply petroleum jelly to needle bearing.
SAT218B
d. Install parking gear on transmission case.
SAT960A
e. Install snap ring on rear of output shaft.
ICheck to be sure output shaft cannot be removed in for-
ward direction.
SAT759I
7. Install adapter case (4WD model only).
a. Install oil seal on adapter case.
IApply ATF to oil seal.
ASSEMBLY
Assembly (1) (Cont'd)
AT-344

SAT757I
b. Install O-ring on revolution sensor.
IApply ATF to O-ring.
c. Install revolution sensor on adapter case.
SAT963A
d. Install adapter case gasket on transmission case.
SAT964A
e. Install parking rod on transmission case.
SAT755I
f. Install adapter case on transmission case.
SAT974A
8. Install front side clutch and gear components.
a. Install rear sun gear on transmission case.
IPay attention to its direction.
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ASSEMBLY
Assembly (1) (Cont'd)
AT-345