DRAFT
TM 5-4210-249-13&P-1
0045
OPERATING IN COLD WEATHER
CAUTION
If main water pump is in a "Wet" (flooded) condition during cold weather
operations, pump must be engaged and re-circulating water to prevent freezing of
pump and plumbing. Failure to comply may result in damage to equipment.
NOTE
Winterization package allows operation of water pump, foam system and body to -25F
(-32C) for a period no longer than two hours. This package includes two diesel fired
27,300 BTU heaters, one inside pump compartment and one in rear compartment.
Heaters automatically turn on at 39F (+/- 2F), (4C [+/-1C]), and turn off at 57F
(+/-3F), (14C [+/-1C]).
Two 2,250W heaters are installed in onboard water tank. Tank heaters automatically turn
on at 40F (4C) and turn off at 60F (16C) when main circuit breakers (CB1 and CB3)
and tank and pipe heater circuit breakers (CB11, CB13, and CB15) are turned ON and not
tripped. Pump compartment is sealed to reduce heat loss. Critical piping is also heated
and insulated.
1.
Start vehicle engine (TM 9-2320-347-10).
2.
Proceed to scene.
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TFFT00646P
NOTE
When arriving at scene, proceed with Step (3).
3.
Start water pump engine (WP 0022).
4.
Put TANK TO PUMP switch (1) to OPEN position. Indicator light (2) will illuminate.
5.
Prime water pump (WP 0023).
0045-4
