INFINITI QX4 2001 Factory Service Manual

1.40 mm (0.0551 in)
IIf not within wear limit, replace.
SAT877A
Low One-way Clutch Inner RaceNBAT0138S04ICheck frictional surface of inner race for wear or damage.
SAT878A
IInstall a new seal rings onto low one-way clutch inner race.
IBe careful not to expand seal ring gap excessively.
IMeasure seal ring-to-groove clearance.
Inspection standard:
Standard value: 0.10 - 0.25 mm (0.0039 - 0.0098 in)
Allowable limit: 0.25 mm (0.0098 in)
IIf not within allowable limit, replace low one-way clutch inner
race.
SAT112B
ASSEMBLYNBAT01391. Install needle bearing onto one-way clutch inner race.
IPay attention to its direction Ð Black surface goes to rear
side.
IApply petroleum jelly to needle bearing.
SAT879A
2. Install oil seal and D-ring onto piston.
IApply ATF to oil seal and D-ring.
REPAIR FOR COMPONENT PARTS
Low & Reverse Brake (Cont'd)
AT-326

SAT880A
3. Install piston by rotating it slowly and evenly.
IApply ATF to inner surface of transmission case.
SAT881A
4. Install return springs, spring retainer and low one-way clutch
inner race onto transmission case.
5. Install dish plate, low and reverse brake drive plates, driven
plates and retaining plate.
6. Install snap ring on transmission case.
SAT872A
7. Check operation of low and reverse brake clutch piston. Refer
to ªDISASSEMBLYº, AT-324.
SAT885A
8. Measure clearance between retaining plate and snap ring.
If not within allowable limit, select proper retaining plate.
Specified clearance:
Standard
0.8 - 1.1 mm (0.031 - 0.043 in)
Allowable limit
2.7 mm (0.106 in)
Retaining plate:
Refer to SDS, AT-360.
SAT884A
9. Install low one-way clutch inner race seal ring.
IApply petroleum jelly to seal ring.
IMake sure seal rings are pressed firmly into place and
held by petroleum jelly.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Low & Reverse Brake (Cont'd)
AT-327

Forward Clutch Drum Assembly
COMPONENTSNBAT0140
SAT211GA
SAT212G
DISASSEMBLYNBAT01411. Remove snap ring from forward clutch drum.
2. Remove side plate from forward clutch drum.
SAT213G
3. Remove low one-way clutch from forward clutch drum.
4. Remove snap ring from forward clutch drum.
SAT891A
5. Remove needle bearing from forward clutch drum.
REPAIR FOR COMPONENT PARTS
Forward Clutch Drum Assembly
AT-328

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

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

SAT162K
Return SpringsNBAT0150S02ICheck for deformation or damage. Measure free length and
outer diameter.
Inspection standard:
Refer to SDS, AT-357.
SAT917A
ASSEMBLYNBAT01511. Install O-rings onto servo piston retainer.
IApply ATF to O-rings.
IPay attention to position of each O-ring.
SAT918A
2. Install servo cushion spring retainer onto band servo piston.
SAT919A
3. Install E-ring onto servo cushion spring retainer.
SAT920A
4. Install D-rings onto band servo piston.
IApply ATF to D-rings.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Band Servo Piston Assembly (Cont'd)
AT-335