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TM-5-4210-220-12
2-11. FIREFIGHTING OPERATIONS.
a.
CFR Mode.
NOTE
CFR operation may be carried out with the truck stationary or in pump-and-roll mode. Pump-
and-roll mode may be selected while the truck is in motion.
(1)
Select the transmission shift lever (1) to N (neutral) for stationary operation, or R, 1, 2, or 2-3 for pump-
and-roll operation.
CAUTION
To avoid water hammer, adjust the vehicle speed so that the engine is operating at or below 1200
rpm before you engage the pump.
(2)
Set the mode switch (2) to CFR.
(3)
Set the water tank valve switch (3) to OPEN.
(4)
Set the pump switch (4) to ON.
(5)
Be sure that pressure is registered on the pump pressure gage (5) before you engage the governor.
(6)
Set the governor switch (6) to ON.
NOTE
The CFR, TANK, PUMP and GOVERNOR must be selected in the above order to ensure a smooth
start-up of the firefighting system.
2-49
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