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


Starting Motor - Assemble

Usage:

426C 1CR




    Illustration 1g00585386

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



    Illustration 2g00585389

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



    Illustration 3g00585386

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



    Illustration 4g00585348

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



    Illustration 5g00585337

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



    Illustration 6g00585327

  1. 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).



    Illustration 7g00585312

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



    Illustration 8g00585753

  1. 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) .



    Illustration 9g00585304

  1. 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.



    Illustration 10g00586185

  1. 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.



    Illustration 11g00586190

  1. 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).



    Illustration 12g00585273

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

Install the starting motor onto the machine.

Caterpillar Information System:

RA1.2, R1.4, R2.0, R2.2, R2.5, R2.7, R3.0, R4.5 and R5.5 Series Reduction Starting Motors Normal Operation
RA1.2, R1.4, R2.0, R2.2, R2.5, R2.7, R3.0, R4.5 and R5.5 Series Reduction Starting Motors No Load - Test
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