AUXILIARY MOTOR SWITCH MAY BE DEFECTIVE.

TM 9-4910-387-14-2

6-2. TROUBLESHOOTING (cont) I

A. AUXILIARY MOTOR SWITCH MAY BE DEFECTIVE.

1 Connect multimeter leads to AUXILIARY MOTOR switch contacts (1 and 2).

Turn on AUXILIARY MOTOR switch.

2 Remove both leads. Connect multimeter leads to AUXILIARY MOTOR switch

contacts (3 and 4). Turn on AUXILIARY MOTOR switch.

3 Check for continuity. If continuity is not present, replace the AUXILIARY

MOTOR switch (p 6-219).

4 If auxiliary motor fails to start, proceed to step B.

B. L2 OR L3 WIRE MAY BE OPEN FROM MAIN POWER SOURCE TO FORWARD SIDE OF STARTER.

1 Connect one multimeter lead to contact L2 (1) at main

power source and connect other lead to contact L2 (2) at

forward side of starter.

2 Remove both leads. Connect one multimeter lead to

contact L3 (3) at main power source and connect other

lead to contact L3 (4) at forward side of starter.

6-32

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