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 110 of 1452

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

0130-38

DRAFT

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TFFT03559

WARNING

ICON 3

Remove rings, wristwatches, neck chains, and any other jewelry before working

around vehicle.

Jewelry can catch on equipment and cause serious injury.

Jewelry

and tools may short across electrical circuits and cause damage to equipment, or

severe burns or electrical shock to personnel.

Step 54.

Disconnect cab instrument panel wire harness cab power distribution wire harness

connector.

With a test lead set, check for 22 to 28 VDC between cab instrument panel

wire harness wire 1020 (pink) at cab instrument panel wire harness cab power

distribution wire harness connector, terminal 9 and a known good ground.

a.

If 22 to 28 VDC are present, repair wire 1020 in cab power distribution

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

power distribution wire harness and block (WP 0441).

b.

If 22 to 28 VDC are not present, repair wire 1020 in cab instrument

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

instrument panel wire harness (WP 0440).

Step 55.

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

Check if front and rear lower warning lights operate.

If front and rear lower warning lights do not operate, troubleshoot Warning

Lights (All) Do Not Operate (WP 0151).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION