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 498 of 1188

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

0084-2

DRAFT

0084

TFFT04472

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 2.

Shut water pump engine off (WP 0022).

Turn battery disconnect switch to OFF position

(WP 0007).

Open pump operator’s panel housing (WP 0325).

Disconnect wire 4075

(red) from water pump engine hourmeter.

Turn battery disconnect switch to ON position

(WP 0007).

Start water pump engine (WP 0022).

Check for 22 to 28 VDC at wire 4075

(red) at water pump engine hourmeter connector to a known good ground.

If 22 to 28 VDC are not present, repair wire 4075 in pump operator’s panel

wire harness (TM 9-2320-325-14&P), or replace pump operator’s panel wire

harness (WP 0459).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION