TM-5-4210-249-13-P-2

TACTICAL FIRE FIGHTING TRUCK (TFF) MODEL M1142

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT REPAIR PARTS AND SPECIAL TOOLS); PART 2 OF 4

TM-5-4210-249-13-P-2 - Page 315 of 1452

TM 5-4210-249-13&P-2

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DRAFT

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TFFT02624A

Step 11.

Put EMERG MASTER and F/R LOWER WARNING switches to off position (WP 0004).

Turn Service Drive Lights Off (TM 9-2320-347-10).

Turn battery disconnect switch to

OFF position (WP 0007).

With a test lead set, check for continuity across wire 1640

(black) from cab instrument panel wire harness front and rear lower warning light flasher

unit connector, terminal 4 to a known good ground.

a.

If there is continuity, replace front and rear lower warning light flasher

unit (WP 0348).

b.

If there is no continuity, repair wire 1640 in cab instrument panel wire

harness if repairable (TM 9-2320-325-14&P), or replace cab instrument

panel wire harness (WP 0440).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION