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 955 of 1188

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

0115-9

DRAFT

0115

TFFT04109

Step 11.

While an assistant pushes and holds pump operator’s panel DRIVER MAIN INLET

PRIMER switch (WP 0004), check for 22 to 28 VDC between pump house wire harness

wire 4067 (orange) at driver main inlet primer valve and a known good ground.

If 22 to 28 VDC are not present, go to Step 13.

Step 12.

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

Disconnect pump house

wire harness wire 4068 (black) from driver main inlet primer valve terminal (WP 0268).

Check for continuity across wire 4068 (black) from wire termination to a known good

ground.

a.

If continuity is present, replace primer valve (WP 0268).

b.

If continuity is not present, repair wire 4068 in pump house wire

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

wire harness (WP 0458).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION