Carefully place empty fire extinguisher cylinder upright onto the agitator bracket, secure with straps. Lower
agitator bracket to rest on scale platform.
The fire extinguisher must have a safety control valve attached.
Verify that the safety control valve (item 2, Appendix D) is in the SET position and attach it to the 3/8-18 NPSM
fill/discharge valve on the fire extinguisher cylinder.
Connect the Bradley adapter to the safety control valve on the fire extinguisher cylinder.
If fire extinguisher is not marked with the maximum capacity, it is the responsibility
of the user to obtain the information relating to their extinguisher.
Check the maximum pounds capacity of the fire extinguisher cylinder being charged. Capacities should be
marked on cylinder. Subtract 0.5 pound. The result is the amount of Halon to be put in the cylinder.
Open the valve on the fire extinguisher cylinder by slowly rotating the safety control valve counterclockwise and
place agitator bracket in lower position, resting on scale platform.
Open the valve on the Halon cylinder.
Open the ball valve on the Halon hose.
Adjust the scale to 0 lb. using tare knob on top of scale dial.
Open the ball valve on the extinguisher hose.
Do not exceed the maximum pounds capacity for the fire extinguisher cylinder.
Different cylinders have different capacities.
Place the UNIT OPERATION valve in the CHARGE position.
Place HALON/NITROGEN valve in the HALON position.
With a fully charged Halon cylinder the extinguisher cylinder capacity may be
reached without pumping. Watch scale carefully when allowing free flow of Halon.
Check scale for pounds of Halon flowing into fire extinguisher cylinder. Fill extinguisher with the amount of Halon
calculated in step g. The remaining Halon will be forced from the hose to the extinguisher with nitrogen
For the next step you will be stopping the pump after each stroke to read the scale.
Keep your hand on the PUMP control valve for quick stopping to avoid overcharge.