2-17. AFTER MISSION PROCEDURES - Continued
(2) To drain the foam tank, open foam tank drain valve.
Foam tank drain valve is located inside pump compartment. To
gain access to valve, open priming tank access door on curb
side of vehicle.
Collect the foam concentrate in clean
containers and retain it for subsequent use. Be sure the foam
tank drain valve is closed after draining.
c. Filling the Foam Tank.
(1) Open the foam tank cover and pour foam concentrate into the tank capacity is 30 gal. (114 1).
(2) Close the foam tank cover.
d. Filling the Water Tank.
Open the tankfill cover.
If the tank is filled through the top opening, any pressurized water supply can be used.
The water tank can be filled via a suction inlet using the pump system.
Monitor the water level gauge and stop when the gauge shows FULL. The truck ignition must be
ON for the indicator to work.
(5) Remove fill hose. Close the tank fill cover.
The tank can also be filled via the suction manifold if the fire
pump is running and the TANK FILL AND RECIRCULATE valve
is open. If from draft, use the 6-inch suction ports. If from
pressure supply (e.g., hydrant) use the left side or right side
AUX. SUCTION ports.
e. Filling the Fire Pump Priming Tank. Check the level of fluid in the priming tank. Fill tank with engine
if temperature is above 0 deg. F (-18 deg. C). Use 5W or SAE 5W-20 if temperature is below 0 deg. F
(-18 deg. C).