Lexus RX300 (MCU15). Service manual — part 572

D03604

D03611

SST

SST

Counter Drive Gear Side:

Front Planetary Gear Side:

D03613

SST

D03614

SST

–

AUTOMATIC TRANSAXLE

COMPONENT PARTS

AX–31

U140F AX (RM848E)

5.

INSTALL COUNTER DRIVE GEAR

(a)

Using a screwdriver, install the snap ring to the transaxle
case.

(b)

Using SST and a press, install the 2 bearing outer races
to the transaxle case.
SST

09950–60020 (09951–00890), 09950–70010
(09951–07150)

NOTICE:

S

Press–fit the bearing race until it contacts the snap
ring.

S

Do not apply excessive pressure to it.

(c)

Using SST and a press, install the tapered roller bearing
to the counter drive gear.
SST

09649–17010

NOTICE:

S

Press–fit the bearing inner race until it contacts the
counter drive gear.

S

Do not apply excessive pressure to it.

(d)

Using SST and a press, install the counter drive gear and
bearing to the transaxle case.
SST

09950–60010 (09951–00890), 09950–70010
(09951–07150)

NOTICE:
Do not apply excessive pressure to it.

D03811

D03913

D03813

D03600

SST

D03615

AX–32

–

AUTOMATIC TRANSAXLE

COMPONENT PARTS

U140F AX (RM848E)

6.

CHECK 1ST & REVERSE BRAKE PISTON RETURN
SPRING

Using vernier calipers, measure the free length of the spring to-
gether with the spring seat.

Standard free length: 17.61 mm (0.6933 in.)

7.

INSTALL 1ST & REVERSE BRAKE PISTON

(a)

Coat 2 new O–rings with ATF.

(b)

Install the 2 O–rings to the 1st & reverse brake piston.

(c)

Coat a 1st & reverse brake piston with ATF, install the 1st
& reverse brake piston to the transaxle case.

(d)

Using SST, a press and snap ring pliers, install the piston
return spring and snap ring to the transaxle case.
SST

09387–00070

NOTICE:

S

Stop the press when the spring sheet is lowered to the
place 1 – 2 mm (0.039 – 0.078 in.) from the snap ring
groove, preventing the spring sheet from deforming.

S

Do not expand the snap ring excessively.

8.

INSTALL FRONT PLANETARY GEAR ASSEMBLY

(a)

Using a screwdriver, install the front planetary ring gear
and snap ring to the brake hub.

D03916

SST

Counter Drive
Gear

Transaxle
Case

2nd Brake Hub
w/ Front Planetary
Gear

D03917

D03596

SST

D03918

SST

–

AUTOMATIC TRANSAXLE

COMPONENT PARTS

AX–33

U140F AX (RM848E)

(b)

Install the front planetary gear to the brake hub.

(c)

Using SST, a press and press–fit the front planetary gear.
SST

09950–60010 (09951–00400)

NOTICE:
Do not apply excessive pressure to it.

(d)

Install the washer, as shown in the illustration.

(e)

Using SST, install the nut.
SST

09387–00030, 09387–00080

Torque: 280 N·m (2,855 kgf·cm, 207 ft·lbf)

(f)

Using SST and a torque wrench, measure the starting
torque of the bearing. When the measured value is not
within the specified value, gradually tighten the nut until
it reaches the specified value.
SST

09387–00080

Starting torque:
0.6 – 1.0 N·m (5.5 – 10.0 kgf·cm, 4.8 – 8.7 in.·lbf)

D03873

D03593

D03910

D03592

D03616

AX–34

–

AUTOMATIC TRANSAXLE

COMPONENT PARTS

U140F AX (RM848E)

(g)

Install the 2 bearings, 2 races and front planetary sun
gear to the front planetary gear.

Bearing and race diameter: mm (in.)

Inside

Out side

Bearing

34.6 (1.362)

52.2 (2.055)

Race

40.3 (1.587)

58.0 (2.283)

Bearing

38.6 (1.520)

60.0 (2.362)

9.

INSTALL REAR PLANETARY GEAR

(a)

Coat a bearing race with ATF, install it to the rear planetary
gear assembly.

Bearing race diameter: mm (in.)

Inside

Out side

Race

38.6 (1.520)

58.0 (2.283)

(b)

Install the thrust washer No.2.

(c)

Install the rear planetary gear from the rear planetary ring
gear.

(d)

Using a screwdriver, install the snap ring.