Lexus RX300 (MCU15). Manual - part 508

B01240

SST

B01241

ST–16

–

STARTING

STARTER

LEXUS RX300   (RM785E)

S

If the contact plate is not pressed down with the spe-
cified pressure, the contact plate may tilt due to coil
deformation or the tightening of the nut.

(2)

Using SST, tighten the nuts to the specified torque.

SST

09810–38140

Torque: 17 N·m (173 kgf·cm, 13 ft·lbf)

NOTICE:
If the nut is over tightened, it may cause cracks on the in-
side of the insulator.

(h)

Clean the contact surfaces of the remaining contact plate
and plunger with a dry shop rag.

(i)

Reinstall the plunger, new gasket and end cover with the
3 bolts.
Torque: 2.5 N·m (26 kgf·cm, 23 in.·lbf)

ST09E–01

–

STARTING

STARTER

ST–17

LEXUS RX300   (RM785E)

REASSEMBLY

Reassembly is in the reverse order of disassembly (See page ST–6).
HINT:
Use high–temperature grease to lubricate the bearings, springs, steel ball and gears when assembling the
starter.

ST09F–01

B01242

Terminal 50

Terminal C

Battery

B01243

Terminal C

Battery

Disconnect

B01244

Disconnect

Battery

B01245

Terminal 50

Terminal 30

Battery

Ammeter

ST–18

–

STARTING

STARTER

LEXUS RX300   (RM785E)

TEST

NOTICE:
These tests must be done within 3 to 5 seconds to avoid
burning out the coil.
1.

DO PULL–IN TEST

(a)

Disconnect the field coil lead wire from terminal C.

(b)

Connect the battery to the magnetic switch as shown.
Check that the clutch pinion gear moves outward.

2.

DO HOLD–IN TEST

With battery connected as above with the clutch pinion gear
out, disconnect the negative (–) lead from terminal C. Check
that the pinion gear remains out.

3.

INSPECT CLUTCH PINION GEAR RETURN

(a)

Disconnect the negative (–) lead from the switch body.

(b)

Check that the clutch pinion gear returns inward.

4.

DO NO–LOAD PERFORMANCE TEST

(a)

Connect the battery and ammeter to the starter as shown.

(b)

Check that the starter rotates smoothly and steadily with
the pinion gear moving out. Check that the ammeter
shows the specified current.
Specified current:
90 A or less at 11.5 V

ST09G–01

–

STARTING

STARTER

ST–19

LEXUS RX300   (RM785E)

INSTALLATION

Installation is in the reverse order of removal (See page ST–5).