TEST OR INSPECTION
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.
Pump from onboard water tank (WP 0026). Put cab FOAM SYSTEM switch to on
and release roof turret agent discharge button (WP 0004). Check if foam is delivered
If foam is delivered from roof turret, fault corrected.
If foam is not delivered from roof turret, troubleshoot Foam Not