Quantcast Table 2-2..  Nitrogen Pressure Regulator Temperature vs.  Pressure Corrections - TM-5-4210-218-13P_41

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Table 2-2..  Nitrogen Pressure Regulator Temperature vs.  Pressure Corrections - TM-5-4210-218-13P_40
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Table 2-2..  Nitrogen Pressure Regulator Temperature vs.  Pressure Corrections - TM-5-4210-218-13P_42
TM 5-4210-218-13&P NOTE Do not exceed the maximum pounds calculated in step f.  Different cylinders have different capacities. o. When the flow of Halon stops, start the pump by rotating the PUMP control valve 90 degrees counterclockwise. Stop the pump after each stroke and watch scale carefully to ensure that the Halon weight is 0.5 pound less than the  extinguisher  rated  capacity  (for  example,  5  pound  capacity;  fill  to  4.5  pounds)  The  remaining  Halon  will  be forced from the hose to the extinguisher with nitrogen pressurization. p. When   the   extinguisher   contains   the   appropriate   number   of   pounds   of   Halon,   close   the   ball   valve   on   the extinguisher hose. q. Move HALON/NITROGEN valve to the OFF position. r. Raise agitator bracket, with extinguisher attached, so it no longer rests on scale platform. s. Read  the  thermometer  on  the  scale  column  and  adjust  the  nitrogen  regulator  gauge  to  the  required  pressure according to the ambient temperature as indicated in table 2-2. t. Open the valve on nitrogen supply cylinder. u. Open the ball valve on extinguisher hose. v. Place the HALON/NITROGEN valve in the NITROGEN position and pressurize extinguisher. w. When correct pressure as read  in  the  nitrogen  monitor  adapter  assembly  gauge  is  reached,  close  ball  valve  on extinguisher hose. x. Agitate  fire  extinguisher  cylinder  in  bracket  to  reduce  pressure.    If  pressure  is  under  that  determined  in  step  s, repeat steps t through w. NOTE Repeat  paragraph  2-10.1,  steps  t.    through  w.    until  pressure  in  fire  extinguisher cylinder is stabilized at required pressure. WARNING When opening or closing the fill valve, be certain that the entire valve is not being loosened from the extinguisher.  Halon could escape and cause injury or death. y. Close the fill valve on the fire extinguisher by rotating the small hex nut clockwise. z. Place the HALON/NITROGEN valve in the OFF position. aa. Disconnect the extinguisher hose from the fire extinguisher fill valve and install cap. NOTE Place  the  filled  fire  extinguisher  aside  for  24  hours.    The  time  and  date  of  setting aside  should  be  marked  on  the  fire  extinguisher.    At  the  end  of  24  hours  repeat paragraph 210.1 steps r through aa. 2-24

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