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Filling the Water Tank
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TM-5-4210-220-12 Truck Firefighting: Powered Pumper: Foam and Water 500-GPM Capacity; Centrifugal Pump Power Takeoff Driven Manual
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OPERATION IN MUDDY AND SWAMPY AREAS - TM-5-4210-220-12_131
TM 5-4210-220-12 Section IV.  OPERATION UNDER UNUSUAL CONDITIONS. 2-14.  OPERATION IN EXTREME COLD. WARNING Doors and access panels may freeze shut and walking surfaces become slippery and hazardous from formation of ice in freezing weather.  Be sure that all ice is removed as quickly as possible. a. No  special  procedures  other  than  the  use  of  the  winterization  system  are  required  for  operation  in  cold climates.    The  winterization  system  should  always  be  used  whenever  the  truck  is  on  standby  where  the  ambient temperature is below 32F (0C). b. After firefighting, remember to dram residual water from all piping as detailed in para. 2-13. NOTE If the truck cannot build up air pressure to operate the air operated valves, air can be injected into  the  system  using  the  shop  connection  air  valve  mounted  on  the  left  side  of  the  truck between the pump body steps. c. If the truck is not operated and ambient temperature is below 32F (0C), perform steps 1 and 2 paragraph 2- 13b; then steps 6 through 12, paragraph 2-13d. d. Be  sure  that  all  PMCS  procedures  and  lubrication  recommendations  to  maintain  the  vehicle  operational  in cold weather are followed. 2-15.  OPERATING IN EXTREME HEAT. a. When operating in a very hot environment, pay extra attention to the engine and transmission temperature and oil pressure gages.  Use auxiliary coolant heat exchanger when pumping m the structural mode. b. Be   sure   that   lubricant   and   coolant   recommendations   for   operation   under   extreme   heat   conditions   are followed. 2-16.  OPERATION IN AREAS WITH SALT AIR AND MIST. a. In  areas  where  salt  air  and  sea  spray  are  common,  measures  must  be  taken  to  protect  the  vehicle  from corrosion.  Use wax and/or other surface protection agents frequently on painted and chrome plated surfaces.  Coat all other exposed metallic surfaces with protective oil as necessary. b. If salt water is used for firefighting, the firefighting system, including all hoses used, should be flushed with potable water on return to base. NOTE The pump is designed for use with fresh water.  Therefore, if salt water is used, the pump must be flushed with fresh water to prevent corrosion of pump components. 2-17.  OPERATION IN SNOW. a. Operating  in  areas  with  heavy  snow  fall  can  cause  problems  unless  walkways,  hose  beds  and  control equipment are continuously cleared of snow.  If not cleared frequently, the equipment including exposed controls may become difficult to operate. b. When driving through deep snow or snow banks use the four-wheel-drive and engage the differential locks. Change 6  2-62

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