Lexus ES300 (1997 year). Manual — part 80

AUTOMATIC TRANSAXLE

FRONT PLANETARY GEAR

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AX-47

FRONT PLANETARY GEAR

COMPONENTS

NO.1 ONE-WAY CLUTCH AND SUN GEAR
DISASSEMBLY

1.

CHECK OPERATION OF NO.1 ONE-WAY CLUTCH
Hold the sun gear and turn the hub. The hub should turn
freely clockwise and should lock counterclockwise.

2.

REMOVE NO.1 ONE-WAY CLUTCH FROM SUN GEAR
While turning the hub clockwise, remove the No.1 one-
way clutch from the sun gear.

AX03A-02

AX0TU-03

AUTOMATIC TRANSAXLE

FRONT PLANETARY GEAR

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AX-48

3.

REMOVE SUN GEAR FROM DRUM

(a)

Using snap ring pliers, remove the snap ring from the
drum.

(b)

Remove the sun gear from the drum.

4.

CHECK SUN GEAR BUSHINGS
Using a dial indicator, measure the inside diameter of the
sun gear bushings.

Maximum inside diameter:

22.59 mm (0.8894 in.)

If the inside diameter is greater than the maximum, re-
place the sun gear.

NO.1 ONE-WAY CLUTCH AND SUN GEAR
ASSEMBLY

1.

INSTALL SUN GEAR TO DRUM

(a)

Install the sun gear to the drum.

(b)

Using snap ring pliers, install the snap ring to drum.

2.

INSTALL NO.1 ONE-WAY CLUTCH ON SUN GEAR
While turning the hub clockwise, slide the No.1 one-way
clutch onto the sun gear.

3.

RECHECK OPERATION OF NO.1 ONE-WAY CLUTCH

PLANETARY RING GEAR INSPECTION

1.

INSPECT RING GEAR FLANGE BUSHING
Using a dial indicator, measure the inside diameter of the
flange bushing.

Maximum inside diameter:

30.08 mm (1.1842 in.)

If the inside diameter is greater than the maximum, re-
place the flange.

AX0TV-01

AX03D-02

AUTOMATIC TRANSAXLE

FRONT PLANETARY GEAR

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AX-49

2.

REMOVE RING GEAR FLANGE

(a)

Using a screwdriver, remove the snap ring.

(b)

Remove the flange from the ring gear.

3.

INSTALL RING GEAR FLANGE

(a)

Position the flange into the ring gear.

(b)

Using a screwdriver, install the snap ring.

FRONT PLANETARY GEAR INSPECTION

MEASURE PLANETARY PINION GEAR THRUST
CLEARANCE
Using a feeler gauge, measure the planetary pinion gear
thrust clearance.

Standard clearance:

0.16-0.56 mm (0.0063-0.0220 in.)

Maximum clearance:

0.61 mm (0.0240 in.)

If the clearance is greater than the maximum, replace the
planetary gear assembly.

AX03E-03

AUTOMATIC TRANSAXLE

SECOND BRAKE

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AX-50

SECOND BRAKE

COMPONENTS

SECOND BRAKE PISTON DISASSEMBLY

REMOVE SECOND BRAKE PISTON

(a)

Apply compressed air to the oil hole to remove the piston.

(b)

Remove the 2 O-rings from the piston.

AX03F-02

AX03G-03