RA1.2, R1.4, R2.0, R2.2, R2.5, R2.7, R3.0, R4.5 and R5.5 Series Reduction Starting Motors Caterpillar

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Illustration 1	g00585386

1. Install the return spring (15) into the solenoid (2) .

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Illustration 2	g00585389

2. Install the rollers (14) and the retainer (13) into the drive end housing (4) .

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Illustration 3	g00585386

3. Put the idler gear (12) and the armature reduction gear (11) onto the drive end housing (4) .

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Illustration 4	g00585348

4. Put the steel ball (10) into the overrunning clutch (9) .

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Illustration 5	g00585337

5. Put the overrunning clutch (9) into the drive end housing (4) .

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Illustration 6	g00585327

6. Put the drive end housing (4) on the solenoid (2) and install the screws. Tighten the screws to a torque of 0.6 N·m (5.3 lb in) to 0.9 N·m (7.9 lb in).

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Illustration 7	g00585312

7. Put the armature (8) into the case of the starting motor (3) .

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Illustration 8	g00585753

8. Put the brush holder (7) in position over the commutator. Put the positive brushes, which are connected to motor case (3) into the positive holders. The positive holder is separated from the plate by an insulator. Put the negative brushes into the negative uninsulated holders. The negative brushes are connected to brush holder (7) .

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Illustration 9	g00585304

9. Make sure that the wires for the positive brush lead are not grounded. Put the brush springs (5) on top of the brushes (6) with a pair of long nose pliers. Make sure that the brush holder (7) and the commutator are free of oil.

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Illustration 10	g00586185

10. If the motor case has an end frame (16), install the end frame onto the case of the starting motor. Tab (22) that is on the end frame must line up with the lead wire grommet (23) that is on the case of the starting motor.

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Illustration 11	g00586190

11. Put the case of the starting motor (3) in position onto the solenoid (2). Engage the TAB (22) on the case of the starting motor with the notch in the solenoid. Install the through bolts and tighten the through bolts to a torque of 1.5 N·m (13 lb in) to 2.4 N·m (21 lb in).

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Illustration 12	g00585273

12. Connect the lead wire (1) to the motor terminal of the solenoid (2) .

Install the starting motor onto the machine.