TEST OR INSPECTION
Put cab or pump operator's panel FOAM TANK switch to "A" position (WP 0004). While
an assistant puts cab or pump operator's panel FOAM SYSTEM switch to on and off
positions (WP 0004), check if foam A system shutoff valve operate to open position.
If foam A system shutoff valve does not operate to open position,
troubleshoot Foam Not Delivered When Tank A is Selected (Bumper Turret,
Ground Sweeps, and Manual Metering Controls) (WP 0095).