Lexus SC300 / Lexus SC400. Manual — part 649

2.

IF NECESSARY, REPLACE FRONT BEARING
(a) Using SST, remove the bearing.
SST 09286–46011

(b) Using a 10 mm nut and press, press in a new front

bearing.

NOTICE: Be careful of the bearing installation direction.

(c) Using a punch, stake the armature shaft.

3.

INSPECT REAR BEARING
Turn each bearing by hand while applying inward force.
If resistance is felt or the bearing sticks, replace the bearing.

4.

IF NECESSARY, REPLACE REAR BEARING
(a) Using SST and a press, press out the bearing.
SST 09950–00020

ST–20

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STARTING SYSTEM

Starter

(b) Using SST and a press, press in a new bearing.

SST 09201–41020

Magnetic Switch

1.

PERFORM PULL–IN COIL OPEN CIRCUIT TEST
Using an ohmmeter, check that there is continuity between
terminals 50 and C.
If there is no continuity, replace the magnetic switch.

2.

PERFORM HOLD–IN COIL OPEN CIRCUIT TEST
Using an ohmmeter, check that there is continuity between
terminal 50 and the switch body.
If there is no continuity, replace the magnetic switch.

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STARTING SYSTEM

Starter

ST–21

ASSEMBLY OF STARTER

(See Components on page

ST–15

)

HINT: Use high–temperature grease to lubricate the bearings
and gears when assembling the starter.

1.

PLACE ARMATURE INTO FIELD FRAME
Apply grease to the armature bearings, and insert the arma-
ture into the field frame.

2.

INSTALL BRUSH HOLDER
(a) Align the claw of the brush holder with the claw groove

of the field frame.

(b) Place the brush holder on the field frame.

(c) Using a screwdriver, hold the brush spring back, and

connect the brush into the brush holder. Connect the
four brushes.

NOTICE: Check that the positive (+) lead wires are not
grounded.

3.

INSERT STEEL BALL INTO CLUTCH SHAFT HOLE
(a) Apply grease to the steel ball.
(b) Insert the steel ball into the clutch shaft hole.

4. INSTALL CLUTCH ASSEMBLY, GEARS AND STARTER

HOUSING
(a) Apply grease to the return spring.
(b) Insert the return spring into the magnetic switch hole.

ST–22

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STARTING SYSTEM

Starter

(c) Place the following parts in position on the starter

housing:

(1) Clutch

assembly

(2) Idler

gear

(3) Bearing
(4) Pinion

gear

(d) Install the starter housing to magnetic switch with the

two screws.

5.

INSTALL FIELD FRAME AND ARMATURE ASSEMBLY
(a) Install a new O–ring to groove of the field frame.

(b) Align the claws of the brush holder with the grooves of

the magnetic switch, and install the field frame and
armature shaft assembly.

(c) Align the punch mark of the field frame with the line of

the magnet switch.

(d) Install a new O–ring to through bolt A.
(e) Install the spring washer, plate washer, wire bracket and

a new O–ring to through bolt B.

(f) Install the two through bolts.

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STARTING SYSTEM

Starter

ST–23