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TM 5-4210-220-12
2-13. AFTER MISSION PROCEDURES. - Continued
d.
Filling the Water Tank
(1)
Open the tank fill access cover and water tank cover (1 and 4) or remove the tank rear fill valve cap
(6).
(2)
If the tank is filled through the top opening, any pressurized water supply can be used.
NOTE
The tank can be filled only 3/4 full via the tank rear fill valve.
(3)
If the tank is filled via the fill valve, a 2 1/2 in. hose must be connected between the port and the
supply source. The truck ignition switch must be set to ON and the tank rear fill valve switch (7) set to ON.
(4)
Monitor the water level gage (5) and stop when the gage shows FULL or the tank rear fill valve closes.
The truck ignition must be ON or the level test button depressed for the indicator to work.
(5)
Remove fill hose. Close the tank and access cover (1 and 4) or install the tank rear fill valve cap (6)
NOTE
The tank can also be filled via the suction manifold if the fire pump is running and the tank fill
valve is open if from draft, use the 5 in. suction ports. If from pressure supply (eg; hydrant) use
the left side, right side, or rear 2 1/2 in. suction ports.
e.
Filling the Fire Pump Priming Tank
Check the level of fluid in the priming tank. Remove fill cap (8) and add a 50/50 solution of antifreeze (Item
2, Appendix E) and water until fluid spills from the vent port. Replace the fill cap.
2-61
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