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 393 of 1452

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

0156-5

DRAFT

0156

TFFT04223

Step 6.

Install fuse FS 5 (WP 0401).

Remove personnel cab instrument panel C (WP 0311).

Disconnect cab instrument panel wire harness UPPER REAR WARNING switch

connector.

Turn battery disconnect switch to ON position (WP 0007).

Turn Service

Drive Lights On (TM 9-2320-347-10).

Put EMERG MASTER switch to on position

(WP 0004).

Check for 22 to 28 VDC between cab instrument panel wire harness wire

1631 (brown) at cab instrument panel wire harness UPPER REAR WARNING switch

connector, terminal 6 and a known good ground.

If 22 to 28 VDC are present, go to Step 8.

Step 7.

Put EMERG MASTER switch to off position (WP 0004).

Turn Service Drive Lights Off

(TM 9-2320-347-10).

Turn battery disconnect switch to OFF position (WP 0007).

Disconnect cab instrument panel wire harness cab power distribution wire harness

connector.

Check for continuity across cab instrument panel wire harness wire 1631

(brown) from cab instrument panel wire harness connector, terminal 3 to UPPER REAR

WARNING switch connector, terminal 6.

a.

If there is continuity, repair wire 1631 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 there is no continuity, repair wire 1631 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