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 1055 of 1188

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

0119-27

DRAFT

0119

TFFT04055

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 36.

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

Check for 22 to 28 VDC between

pump operator’s panel wire harness wire 2854 (red) at pump operator’s panel TANK TO

PUMP switch, terminal and a known good ground.

If 22 to 28 VDC are not present, go to Step 41.

Step 37.

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

Check for continuity across

pump operator’s panel TANK TO PUMP switch, from terminal wire 2854 (red) to

terminal wire 2855 (red), when switch is put to open position.

If there is no continuity, replace pump operator’s panel TANK TO PUMP

switch (WP 0338).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION