Page 228 of 4592
AUTOMATIC TRANSAXLEFIRST AND REVERSE BRAKE ±
AX±58
FIRST AND REVERSE BRAKE
COMPONENTS
FIRST AND REVERSE BRAKE INSPECTION
INSPECT DISCS, PLATES AND FLANGES
Check if the sliding surfaces of the discs, plates and
flanges are worn or burnt. If necessary, replace them.
HINT:
If the lining of the disc is peeling off or discolored, or
even if a part of the printed numbers are defaced, re-
place all discs.
Before assembly new discs, soak them in ATF for at
least 15 minutes.
AX0FU±02
AX0FV±02
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AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±60
OVERDRIVE BRAKE DISASSEMBLY
1. REMOVE PISTON RETURN SPRING
(a) While pushing the return spring, remove the snap ring
with a screwdriver.
(b) Remove the piston return spring.
2. REMOVE CUSHION PLATE, PLATES, DISCS AND
FLANGE
3. REMOVE PISTON FROM DRUM
Apply compressed air to oil hole to remove the piston.
HINT: Blow with the gun slightly away from the oil hole,
and be careful that the piston does not tilt.
4. REMOVE O±RINGS
Remove the inner and outer O±rings from the piston.
AX0FX±02
Page 231 of 4592
AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±61
OVERDRIVE BRAKE INSPECTION
INSPECT DISCS, PLATES AND FLANGE
Check if the sliding surfaces of the discs, plates and
flange are worn or burnt. If necessary, replace them.
HINT:
If the lining of the disc is peeling off or discolored, or
even if a part of the printed numbers are defaced, re-
place all discs.
Before assembling new discs, soak them in ATF for
at least 15 minutes.
OVERDRIVE DIRECT CLUTCH
DISASSEMBLY
1. CHECK PISTON STROKE OF DIRECT CLUTCH
Using a dial indicator, measure the piston stroke while ap-
plying and releasing compressed air (392 ± 785 kPa, 4 ±
8 kgf/cm
2, 57± 114 psi).
Piston stroke:
1.21 ± 1.91 mm (0.0476 ± 0.0752 in.)
If the piston stroke is greater than the maximum, inspect
the each component.
2. REMOVE OVERDRIVE DIRECT CLUTCH FROM CASE
AX0FY±02
AX0FZ±02
Page 244 of 4592
AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±74
OVERDRIVE CASE ASSEMBLY
1. INSTALL OIL SEAL RINGS ON OVERDRIVE CASE
Install the oil seal rings to the O/D case groove, then snug
them down by squeezing their ends together.
HINT: After installing the oil seal rings, check that they
move smoothly.
2. INS TALL C
0 ACCUMULATOR PISTON OF OVER-
DRIVE CLUTCH
(a) Install a new O±ring to the accumulator piston. Coat the
O±ring with ATF.
(b) Install the accumulator piston, 2 springs and plate.
(c) Install the snap ring with snap ring pliers.
OVERDRIVE BRAKE ASSEMBLY
1. INSTALL PISTON INTO DRUM
(a) Install the new O±rings to the piston. Coat the O±rings
with ATF.
(b) Press the piston into the drum, being careful not to dam-
age the O±rings.
2. INSTALL FLANGE, DISCS AND PLATES
(a) Install the flange, facing the flat end upward.
AX0G5±02
AX0G6±02
Page 278 of 4592
AUTOMATIC TRANSAXLECOMPONENT PARTS INSTALLATION ±
AX±108
3. INSTALL PARKING LOCK ROD
4. INSTALL PARKING LOCK PAWL BRACKET
Torque: 7.4 N´m (75 kgf´cm, 65 in.´lbf)
5. CHECK OPERATION OF PARKING LOCK PAWL
Make sure the counter driven gear is locked when the
manual valve lever is in the P position.
6. INSTALL FIRST AND REVERSE BRAKE PISTON TO
TRANSMISSION CASE
(a) Coat a new O±rings with ATF.
(b) Install the 2 O±rings on the piston.
(c) Push the piston into the bore of the case, facing the spring
seat upward.
Page 279 of 4592
AUTOMATIC TRANSAXLECOMPONENT PARTS INSTALLATION ±
AX±109
7. INSTALL PISTON RETURN SPRING
(a) Place the return spring and snap ring on the piston.
(b) Place SST, and compress the return spring evenly by
tightening the bolt gradually.
SST 09350±32014 (09351±32040)
(c) Install snap ring. Visually check to make sure it is fully
seated and centered by the 3 lugs on the spring retainer.
Be sure the end gap of snap ring is not aligned with the
spring retainer claw.
(d) Remove SST.
8. INSTALL OVERDRIVE UNIT
(a) Install the overdrive brake apply gasket and overdrive
clutch apply gasket.
(b) Install the overdrive brake drum to the case.
(c) Install a new case gasket to the case.
(d) Make sure that the length from the top surface of the case
to the counter driven gear top surface should be about 24
mm (0.94 in.).
Page 280 of 4592

AUTOMATIC TRANSAXLECOMPONENT PARTS INSTALLATION ±
AX±110
(e) Install the overdrive unit with overdrive case to the trans-
axle case.
(f) Install and tighten the bolts.
Torque: 25 N´m (250 kgf´cm, 18 ft´lbf)
9. CHECK INTERMEDIATE SHAFT END PLAY
(a) Make sure that the intermediate shaft has thrust play.
Thrust play:
0.49 ± 1.51 mm (0.0193 ± 0.0594 in.)
If the thrust play is not within specification, check the
installation of intermediate shaft.
(b) Make sure that the intermediate shaft turns smoothly.
10. INSTALL FIRST AND REVERSE BRAKE IN CASE
(a) Install the inner flange facing the flat end toward the oil
pump side.
(b) Install the discs and plates.
Install in order: P=Plate D=Disc
D ± P ± D ± P ± D ± P ± D ± P ± D ± P ± D
(c) Install the outer flange, facing the flat end toward the pis-
ton side.
11. INSTALL SNAP RING
Be sure the end gap of the snap ring is not aligned with
one of the cutouts.
12. CHECK OPERATION OF FIRST AND REVERSE
BRAKE
Apply compressed air into the oil passage with the case
and be sure that the piston moves.
Page 281 of 4592

AUTOMATIC TRANSAXLECOMPONENT PARTS INSTALLATION ±
AX±111
13. INSTALL RING GEAR INTO CASE
(a) Coat the races and bearing with petroleum jelly and install
them onto the ring gear.
Bearing and races
mm (in.)
Outer DiameterInner Diameter
Front Race37.3 (1.469)24.1 (0.949)
Bearing37.6 (1.480)24.0 (0.945)
Rear Race37.6 (1.480)22.2 (0.874)
(b) Install the ring gear into the case.
14. INSTALL REAR PLANETARY GEAR INTO CASE
(a) Align the flukes of the discs in the first and reverse brake.
(b) Coat the thrust washer with petroleum jelly.
Align the tab of the washer with the hollow of the carrier.
(c) Align the spline of the planetary carrier with either of the
flukes of the discs, and install the planetary gear into the
first and reverse brake discs.
15. INSTALL NO.2 ONE±WAY CLUTCH INTO CASE WITH
SHINY SIDE UPWARD
(a) Place the one±way clutch with the shiny side upward.
(b) Install the one±way clutch onto the inner race while turn-
ing the planetary gear clockwise with SST.
SST 09350±32014 (09351±32050)