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TM 5-4210-218-13&P
CAUTION
The Halon transfer pump is not to be operated where the working pressure
exceeds 1000 psi. The adapter gauge will be damaged.
k.
When the flow of Halon/nitrogen stops, start the pump by rotating the PUMP valve 90 degrees counterclockwise to
the ON position.
NOTE
When a recovery cylinder pressure reaches 900 psi (6205 kPa)
and must be
changed, it should be set aside for a minimum of 24 hours. This will allow
contents to settle and allow input of additional Halon nitrogen mix. This process
may be repeated a maximum of three times or the 900 psi (6205 kPa) pressure is
maintained, whichever occurs first. The recovery cylinder should be marked as to
time and date of last change.
I.
When the inlet pressure gauge on the control panel shows a minus 5 psi (minus 34 kPa) (vacuum) or the gauge
on the Halon hose adapter exceeds 900 psi (6205 kPa) close the ball valve on the extinguisher hose. A reading of
900 psi (6205 kPa) requires recovery cylinder change.
m.
Move UNIT OPERATION valve from RECOVER to OFF.
n.
Place the HALON/NITROGEN valve in the OFF position.
o.
Close the ball valve on Halon hose at recovery cylinder.
p.
Turn off the pump by rotating the PUMP valve 90 degrees clockwise to the OFF position.
WARNING
When opening or closing the fill valve, be certain that the entire valve is not being
loosened from the fire extinguisher. Halon could escape and cause injury or death.
q.
Close the fill valve on the fire extinguisher by rotating the small hex nut clockwise until securely closed.
r.
Disconnect the extinguisher hose adapter from the fill valve on the fire extinguisher and remove empty
extinguisher from agitator bracket.
s.
After all fire extinguishers are processed, place all valves on the hoses, control panel and the recovery cylinder in
the closed or OFF position.
t.
Stop the compressor.
u.
Remove extinguisher adapter from extinguisher hose and place in tool box.
v.
Disconnect Halon hose from recovery cylinder and air compressor hose from air filter.
w.
Remove extinguisher support bracket from agitator bracket and place in tool box.
x.
Stow hoses in approved manner.
2-19
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