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 719 of 1188

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

0104-11

DRAFT

0104

TFFT02844

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.

Release bumper turret control discharge switch (WP 0004).

Install bumper turret

control cover and tighten four screws.

Remove driver side crew cab panel (WP 0499).

Remove pump house panel Q (WP 0540).

Disconnect main wire harness pump

operator’s panel wire harness connector.

While an assistant pushes and holds bumper

turret control discharge switch (WP 0004), with a test lead set, check for 22 to 28 VDC

between main wire harness DV1 wire 2837 (gray) at main wire harness pump house

wire harness connector, terminal 16 and a known good ground.

If 22 to 28 VDC are present, repair wire 2837 in pump operator’s panel wire

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

panel wire harness (WP 0459).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION