SUBARU TRIBECA 2009 1.G Service Workshop Manual
Manufacturer: SUBARU, Model Year: 2009, Model line: TRIBECA, Model: SUBARU TRIBECA 2009 1.GPages: 2453, PDF Size: 46.32 MB
Page 2101 of 2453

5AT-85
Drive Pinion Shaft Assembly
AUTOMATIC TRANSMISSION
6) If tooth contact is correct, mark the retainer posi-
tion and loosen it. After fitting a new O-ring and oil
seal, screw in the retainer to the marked position.
Tighten the lock plate with specified torque.
Tightening torque:
25 N·m (2.5 kgf-m, 18 ft-lb)
(A) Lock plate
AT-01988
(A)
Page 2102 of 2453

5AT-86
Front Differential Assembly
AUTOMATIC TRANSMISSION
33.Front Differential Assembly
A: REMOVAL
1) Remove the transmission assembly from vehicle
body.
2) Pull out the torque converter assembly.
3) Remove the transmission harness connector
from stay.
4) Remove the oil charge pipe.
5) Remove the ATF filter inlet and outlet pipes.
6) Separate the converter case from the transmis-
sion case.
7) Remove the differential side retainers using ST.
NOTE:
Hold the differential case assembly by hand to
avoid damaging the retainer mounting hole of the
converter case.
ST 18630AA010 WRENCH COMPL RETAIN-
ER
8) Remove the differential assembly while being
careful not to damage the attachment part of retain-
er.
B: INSTALLATION
1) When installing the differential assembly to
case, be careful not to damage the inside of case
(particularly, the differential side retainer mating
surface).
2) Install the O-ring to left and right side retainer.
3) Using the ST, install the side retainer.
ST 18630AA010 WRENCH COMPL RETAIN-
ER
4) Adjust the backlash of the front differential.
sembly.>
5) Install the lock plate.
Tightening torque:
25 N·m (2.5 kgf-m, 18 ft-lb)
6) Install the converter case to the transmission
case.
7) Install the transmission harness connector to the
stay.
8) Install the ATF filter pipe.
9) Install the oil charge pipe together with an O-
ring.
10) Install the torque converter assembly.
sembly.>
11) Install the transmission assembly to the vehi-
cle.
C: DISASSEMBLY
1. DIFFERENTIAL CASE ASSEMBLY
1) Remove the taper roller bearing using the ST
and a press.
ST 498077000 REMOVER
(A) Differential ASSY
AT-01987
(A)
(A) Lock plate
AT-01988
(A)
AT-00216
Page 2103 of 2453

5AT-87
Front Differential Assembly
AUTOMATIC TRANSMISSION
2) Secure the case in a vise, remove the hypoid
driven gear tightening bolts, and then separate the
hypoid driven gear into case (RH) and case (LH).
3) Pull out the straight pin and shaft, and then re-
move the differential bevel gear, washer and differ-
ential bevel pinion.
2. SIDE RETAINER
NOTE:
After adjusting the drive pinion backlash and tooth
contact, remove and install the oil seal and O-ring.
1) Remove the O-ring.
2) Remove the oil seal.
3) Remove the split pin, and then remove the claw.
ST 398527700 PULLER
4) Attach two claws to the outer race, and set the
ST to side retainer.
ST 398527700 PULLER
5) Restore the removed claws to original position,
and install the pin and split pin.
(A) Hypoid driven gear
(B) Differential case (RH)
(C) Differential case (LH)
(A) Differential case (RH)
(B)
AT-00217
(A)
(C)
AT-00218(A)
AT-00219
(A) Claw
(B) Split pin
(C) Pin
(A) Shaft
(B) Claw
AT-00220
AT-00221
AT-00222
Page 2104 of 2453

5AT-88
Front Differential Assembly
AUTOMATIC TRANSMISSION
6) Hold the shaft of ST to avoid removing from side
retainer, and then remove the bearing outer race.
ST 398527700 PULLER
NOTE:
Replace the bearing inner and outer races as a sin-
gle unit.
D: ASSEMBLY
1. DIFFERENTIAL CASE ASSEMBLY
1) Install the washer, differential bevel gear and dif-
ferential bevel pinion in the differential case (RH).
Insert the pinion shaft.
2) Attach the straight pin in the reverse direction.
3) Install the washer and differential bevel gear to
differential case (LH). Put the differential case (RH)
on the case, and then assemble the two cases.
4) Install the hypoid driven gear and secure by
tightening the bolt.
Tightening torque:
70 N·m (7.1 kgf-m, 51.6 ft-lb)
5) Measurement of backlash (Selection of washer)
(1) Install the SUBARU genuine axle shaft to
differential case.
Part No. 38415AA070 AXLE SHAFT
(2) Measure the gear backlash using ST1 and
ST2, and then insert the ST2 though the access
window of case.
ST1 498247001 MAGNET BASE
ST2 498247100 DIAL GAUGE
NOTE:
•Measure the backlash by applying a pinion tooth
between two bevel gear teeth.
•Fix the bevel pinion gear in place with a screw-
driver or similar tool when measuring.
Specification:
0.13 — 0.18 mm (0.0051 — 0.0071 in)
(3) If the backlash is not within specification, se-
lect a washer from the table below.
6) Using the ST, install the taper roller bearing.
ST 398487700 DRIFT
(A) Shaft
(B) Side retainer
(A) Differential case (RH)
AT-00223
AT-00218(A)
(A) Hypoid driven gear
(B) Differential case (RH)
(C) Differential case (LH)
Washer
Par t N o. Thickness mm (in)
803038021 0.95 (0.037)
803038022 1.00 (0.039)
803038023 1.05 (0.041)
(B)
AT-00217
(A)
(C)
AT-00224
ST2
ST1
Page 2105 of 2453

5AT-89
Front Differential Assembly
AUTOMATIC TRANSMISSION
2. SIDE RETAINER
NOTE:
Install the oil seal and O-ring of side retainer after
the adjustment of backlash and tooth contact.
1) Install the bearing outer race to side retainer.
2) Install a new oil seal using ST.
ST 18675AA000 DIFFERENTIAL SIDE OIL
SEAL INSTALLER
NOTE:
Apply oil to the oil seal lips.
3) Install a new O-ring.
E: INSPECTION
•Check each component for scratches, damage
or other faults.
•Measure the backlash, and then adjust it to be
within specification.
F: ADJUSTMENT
1) Using the ST, screw-in the retainer until resis-
tance is felt.
NOTE:
Screw in the RH side slightly deeper than the LH
side.
ST 18630AA010 WRENCH
2) Remove the oil pump cover.
3) Remove the liquid gasket from the mating sur-
face completely.
4) Install the oil pump cover to converter case, and
secure them with tightening four bolts evenly.
NOTE:
Use an old gasket or aluminum washer to prevent
damaging the mating surface of the housing.
Tightening torque:
41 N·m (4.2 kgf-m, 30.4 ft-lb)
5) Rotate the drive pinion ten times or more using
ST1 and ST2.
ST1 18667AA010 HOLDER
ST2 499787700 WRENCH
AT-00226
ST
AT-00219
AT-00227
ST
AT-01985
ST2ST1
Page 2106 of 2453

5AT-90
Front Differential Assembly
AUTOMATIC TRANSMISSION
6) Tighten the LH retainer by rotating the shaft until
resistance is felt. Then loosen the retainer RH.
Keep tightening the retainer LH, and loosening the
retainer RH until the pinion shaft no longer be
turned. This is the “zero” state.
7) After the “zero” state is established, back off the
retainer LH 3 notches and secure it with the lock
plate. Then back off the retainer RH and retighten
until it stops. Rotate the drive pinion 2 or 3 times.
Tighten the retainer RH further 1-3/4 notches. This
sets the preload. Finally, secure the retainer with its
lock plate.
NOTE:
Turning the retainer by one tooth changes the
backlash approx. 0.05 mm (0.0020 in).
8) Turn the drive pinion several times using ST1,
and check to see if the backlash is within the spec-
ification using ST2, ST3, ST4 and ST5.
ST1 499787700 WRENCH
ST2 498247001 MAGNET BASE
ST3 498247100 DIAL GAUGE
ST4 499787500 ADAPTER
ST5 498255400 PLATE
Backlash:
0.10 — 0.15 mm (0.0039 — 0.0059 in)
9) Adjust the teeth contact of the front differential
and drive shaft.
(A) Retainer
(A) Lock plate
(A) 0.05 mm (0.0020 in)
AT-01986
(A)
AT-01988
(A)
AT-01989
(A)
Page 2107 of 2453

5AT-91
AT Main Case
AUTOMATIC TRANSMISSION
34.AT Main Case
A: REMOVAL
1) Remove the transmission assembly from vehicle
body.
2) Pull out the torque converter assembly.
3) Remove the transmission harness connector
from stay.
4) Disconnect the air breather hose.
5) Remove the oil charge pipe.
6) Remove the ATF filter inlet and outlet pipes.
7) Remove the extension case.
8) Remove the center differential carrier.
9) Remove the reduction driven gear.
10) Separate the converter case from the transmis-
sion case.
11) Remove the control valve body.
12) Remove the oil pump cover.
NOTE:
The input clutch pack assembly and front sun gear
assembly are also removed together.
13) Remove the needle bearing of the middle carri-
er assembly.
14) Remove the middle carrier assembly.
15) Remove the rear carrier assembly.
AT-01990
AT-01991
AT-01992
AT-01993
Page 2108 of 2453

5AT-92
AT Main Case
AUTOMATIC TRANSMISSION
16) Remove the middle & rear sun gear assembly.
17) Remove the thrust needle bearing of high & low
reverse clutch.
18) Remove the high & low reverse clutch assem-
bly.
19) Remove the direct clutch assembly.
20) Remove the snap ring of reverse brake.
21) Remove the retaining plate.
22) Remove the leaf spring.
23) Take out the drive plate, driven plate and dish
plate.
AT-01994
AT-01995
AT-01996(A) Leaf spring
AT-01997
AT-01998
B'B
B' B
(A)
(A)AT-03364
Page 2109 of 2453

5AT-93
AT Main Case
AUTOMATIC TRANSMISSION
24) Remove the snap ring of the reverse brake
spring retainer.
ST1 18762AA000 COMPRESSOR SPECIAL
TOOL
ST2 18765AA000 COMPRESSOR SUPPORT
ST3 18763AA000 COMPRESSOR SHAFT
25) Remove the spring retainer.
26) Remove the return spring.
27) Apply compressed air.
28) Remove the reverse brake piston.
B: INSTALLATION
1) Install the reverse brake piston.
NOTE:
Apply ATF onto the piston sliding surface.
ST1 18762AA000 COMPRESSOR SPECIAL
TOOL
ST2 18765AA000 COMPRESSOR SUPPORT
ST3 18763AA000 COMPRESSOR SHAFT
2) Install the return spring.
AT-02000
ST3
ST2
ST1
AT-02001
AT-02002
AT-02004
AT-02005
AT-02002
Page 2110 of 2453

5AT-94
AT Main Case
AUTOMATIC TRANSMISSION
3) Install the spring retainer and snap ring.
ST1 18762AA000COMPRESSOR SPECIAL TOOL
ST2 18765AA000 COMPRESSOR SUPPORT
ST3 18763AA000 COMPRESSOR SHAFT
4) Install the dish plate.
NOTE:
When installing, make sure that the identification
mark is facing the front side of transmission.
5) Install the drive plate and driven plate.
6) Install the leaf spring.
7) Install the retaining plate.
8) Install the snap ring of the reverse brake.
9) Perform the clearance check of reverse brake.
(1) Measure the clearance between retainer
plate and snap ring using thickness gauge.
Specification:
0.7 — 1.1 mm (0.028 — 0.043 in)
(2) If it is out of specification, select a suitable
retainer plate from the following table and as-
semble it.
10) Install the direct clutch assembly.
(A) Leaf spring
AT-02000
ST3
ST2
ST1
B'B
B' B
(A)
(A)AT-03364
Retainer plate
Par t N o. Thickness mm (in)
31567AB100 4.2 (0.165)
31567AB170 4.4 (0.173)
31567AB180 4.6 (0.181)
31567AB190 4.8 (0.189)
31567AB200 5.0 (0.197)
AT-01998
AT-02372
AT-01997