clutch INFINITI QX4 2001 Factory Service Manual

SAT892A
INSPECTIONNBAT0142Forward Clutch DrumNBAT0142S01ICheck spline portion for wear or damage.
ICheck frictional surfaces of low one-way clutch and needle
bearing for wear or damage.
SAT893A
Needle Bearing and Low One-way ClutchNBAT0142S02ICheck frictional surface for wear or damage.
SAT214G
ASSEMBLYNBAT01431. Install needle bearing in forward clutch drum.
2. Install snap ring onto forward clutch drum.
SAT894A
3. Install low one-way clutch onto forward clutch drum by push-
ing the roller in evenly.
SAT895A
IInstall low one-way clutch with flange facing rearward.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Forward Clutch Drum Assembly (Cont'd)
AT-329

SAT887A
4. Install side plate onto forward clutch drum.
5. Install snap ring onto forward clutch drum.
Rear Internal Gear and Forward Clutch Hub
COMPONENTSNBAT0144
SAT896AA
SAT897A
DISASSEMBLYNBAT01451. Remove rear internal gear by pushing forward clutch hub for-
ward.
SAT898A
2. Remove thrust washer from rear internal gear.
REPAIR FOR COMPONENT PARTS
Forward Clutch Drum Assembly (Cont'd)
AT-330

SAT899A
3. Remove snap ring from forward clutch hub.
SAT900A
4. Remove end bearing.
SAT955A
5. Remove forward one-way clutch and end bearing as a unit
from forward clutch hub.
SAT901A
6. Remove snap ring from forward clutch hub.
SAT902A
INSPECTIONNBAT0146Rear Internal Gear and Forward Clutch HubNBAT0146S01ICheck gear for excessive wear, chips or cracks.
ICheck frictional surfaces of forward one-way clutch and thrust
washer for wear or damage.
ICheck spline for wear or damage.
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-331

SAT903A
Snap Ring and End BearingNBAT0146S02ICheck for deformation or damage.
SAT901A
ASSEMBLYNBAT01471. Install snap ring onto forward clutch hub.
2. Install end bearing.
SAT904A
3. Install forward one-way clutch onto clutch hub.
IInstall forward one-way clutch with flange facing rearward.
4. Install end bearing.
5. Install snap ring onto forward clutch hub.
SAT906A
6. Install thrust washer onto rear internal gear.
IApply petroleum jelly to thrust washer.
ISecurely insert pawls of thrust washer into holes in rear
internal gear.
SAT907A
7. Position forward clutch hub in rear internal gear.
REPAIR FOR COMPONENT PARTS
Rear Internal Gear and Forward Clutch Hub (Cont'd)
AT-332

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

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

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

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.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ASSEMBLY
Assembly (1) (Cont'd)
AT-345

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