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TM 5-4210-218-13&P
d.
Verify that the shift valve located on top of the pump is open (two stage position).
e.
Verify that all valves on the control panel are in the OFF position.
f.
Verify that all other valves and ports on the hoses, fire extinguisher and recovery cylinder are closed.
CAUTION
The safety pin and antirecoil cap must be in place before handling M-1 or Schrader
valve fire extinguisher. If not on fire extinguisher, place it aside until a safety pin
and antirecoil cap can be installed.
CAUTION
Do not handle any fire extinguisher that has not been hydrotested within the last
five years. The date should be stamped on fire extinguisher. If not, have using unit
verify date.
2-9 HALON / NITROGEN RECOVERY PROCEDURES.
2-9.1 For M-1 Tank Extinguisher Cylinder or any Cylinder With Schrader Valve.
WARNING
Sudden release of compressed gases may cause severe injury to personnel. Do
not deviate from approved procedures. Wear safety goggles or face shield, gloves
and hearing protection when working with pressurized equipment.
Perform operating procedures in a well ventilated area. Accidental Halon leaks
remove oxygen from the air. Suffocation can occur.
a.
Connect the Schrader valve adapter, located in the tool box, to the extinguisher hose. The Schrader valve adapter
has a 37° bend at one end.
b. Install extinguisher support bracket, P/N 12463588 (item 6, Appendix D) on agitator bracket.
c.
Start the air compressor. Adjust air inlet regulator on the Recovery / Recharger Unit to 150 psi (1034 kPa).
WARNING
The fire extinguisher is under pressure. Caution should be taken when making
connections to the fire extinguisher fill valve to prevent Halon escape. Serious
injury or death could result.
d. Place the fire extinguisher on the support bracket, valve down, and secure with straps on agitator bracket.
e. Remove the cap from the fill valve on the fire extinguisher and connect the extinguisher hose to the fill valve.
f.
Open the valve on the recovery cylinder and the ball valve on the Halon hose.
g. Place the HALON/NITROGEN valve in the HALON position.
2-17
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