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 652 of 1188

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

0099-6

DRAFT

0099

TFFT03390

NOTE

Multi-metering valve operation can be checked by listening for metallic click during

cylinder operation or by observing piston tab.

Step 5.

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

Put cab FOAM SELECT

switch to A position (WP 0004).

Check if ground sweeps foam A multi-metering valve

cylinder operates to open position.

If ground sweeps foam A multi-metering valve cylinder does not operate to

open position go to Step 13.

Step 6.

Flush foam system (WP 0031).

While an assistant puts cab or pump operator’s panel

FOAM SYSTEM switch to on position (WP 0004), check if ground sweeps foam B multi-

metering valve cylinder operates to open position.

Put pump operator’s panel FOAM

TANK switch to “B” position (WP 0004).

If ground sweeps foam B multi-metering valve cylinder does not operate to

open position, go to Step 8.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION