TM-9-2350-256-20-1

RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 2

NOVEMBER 2005

TM-9-2350-256-20-1 - Page 352 of 948

TM 9-2350-256-20-1

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CORRECTIVE ACTION –Continued

6.

Reconnect APU control box to foot dimmer switch and bulkhead wiring harness to APU control box.

Remove four screws (10), four lockwashers (11), and pull rear panel (12) from APU control box (9).

Disconnect wire 419 from panel connector side of 15 A circuit breaker. Place red lead of multimeter in

wire 419 and black lead to ground. Turn MASTER switch on, and check for voltage. Turn MASTER

switch OFF. If voltage is present, go to step 7. If voltage is not present, repair/replace wire 419 of APU

control box wiring harness (see WP 0438 00).

7.

Reconnect wire 419 to panel connector side of 15 A circuit breaker. Disconnect wire 419 from APU

FUEL SHUTOFF switch side of15 A circuitbreaker. Placered lead ofmultimeteron terminal of circuit

breaker and black lead to ground. Turn MASTER switch on and check for voltage. Turn MASTER

switch OFF. If voltage is present, go to step 8. If voltage is not present, replace 15 A circuit breaker

(see WP 0438 00).

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