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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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