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 954 of 1188

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

0115-8

DRAFT

0115

TFFT04108

Step 9.

Open pump house panel A (WP 0539).

While an assistant presses pump operator’s

panel DRIVER MAIN INLET PRIMER switch (WP 0004), check if driver main inlet

primer valve control solenoid is operating.

Operation can be checked by listening for a

metallic clicking sound and slight movement of solenoid.

If driver main inlet primer valve control solenoid does not click and slightly

move, go to Step 17.

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 10.

Check for 22 to 28 VDC between driver main inlet primer valve control solenoid terminal

wire 2768 (white) and a known good ground.

If 22 to 28 VDC are not present, go to Step 15.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION