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 997 of 1188

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

0116-3

DRAFT

0116

TFFT03768

CAUTION

•

Do not mix different types or brands of foam agent in foam cells or piping.

Mixing

of different foam agents (either type or manufacturer) may cause deterioration of

foam agent, improper proportioning and poor performance in a fire situation.

Mixing of Class A and Class B foam agents may result in a chemical reaction which

can create globules, which can clog orifices and cause system failure.

•

Failure to flush foam system after each foam use could result in equipment damage.

Step 2.

Pump from onboard water tank (WP 0026).

Put cab FOAM SYSTEM switch to on

position (WP 0004).

Put cab FOAM SELECT switch to A position (WP 0004).

Push

and release roof turret agent discharge button (WP 0004).

Check if foam is delivered

from roof turret.

Flush foam system (WP 0031).

a.

If foam is delivered from roof turret, fault corrected.

b.

If foam is not delivered from roof turret, troubleshoot Foam Not

Delivered From Roof Turret (WP 0098).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION