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 640 of 1188

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

0098-10

DRAFT

0098

TFFT03499

Step 11.

Put cab FOAM SYSTEM switch to off position (WP 0004).

Reconnect air line at roof

turret foam B multi-metering valve cylinder.

Disconnect pump house wire harness

ROOF TURRET FOAM B foam system flow control manifold connector. Put cab FOAM

SYSTEM switch to on position (WP 0004).

Put cab FOAM SELECT switch to B

position (WP 0004).

With a test lead set, check for 22 to 28 VDC between valve control

wire harness wire 4055 (purple) at roof turret foam B foam system flow control manifold

connector, terminal 1, and a known good ground.

If 22 to 28 VDC are not present, repair wire 4055 (purple) in pump house

wire harness if repairable (TM 9-2320-325-14&P), or replace valve control

wire harness (WP 0463).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION