TM-5-4210-249-13-P-1

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 1 OF 4

TM-5-4210-249-13-P-1 - Page 1072 of 1188

TM 5-4210-249-13&P-1

0120-10

DRAFT

0120

TFFT03537

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 12.

Put GROUND SWEEPS switch to off position (WP 0004).

Remove cab instrument

panel B (WP 0311).

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

Disconnect cab pump control wire harness GROUND SWEEPS switch connector.

Put

battery disconnect switch to ON position (WP 0007).

Check for 22 to 28 VDC between

cab pump control wire harness wire 2854 (red) at GROUND SWEEPS switch

connector, terminal 5 and a known good ground.

If 22 to 28 VDC are not present, repair wire 2854 in cab pump control wire

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

wire harness (WP 0443).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION