Product Manual

PN 05604 04/2020
3. Remove and check pull pin for freedom of movement. Replace if bent or if removal appears difficult.
4. Check the date of manufacture printed on the extinguisher label (nameplate). All stored-pressure Halon
1211 extinguishers must be hydrostatically (proof-pressure) tested every 12 years.
5. Visually inspect the pressure gauge:
a. If bent, damaged, or improper gauge, depressurize and replace.
b. If pressure is low or high and temperature/pressure relationship has been ruled out:
1. If pressure is low, check for leaks.
2. If over pressurized (overcharged), depressurize the extinguisher and follow recharge instructions.
6. Inspect discharge lever for any dirt or corrosion, that might impair freedom of movement. Inspect carrying
handle for proper installation. If lever, handle, or rivets are damaged, replace with proper Amerex part(s).
7. Check weight of extinguisher, and compare to proper weight specified on extinguisher nameplate. If
discrepancy is noted, remove nozzle or hose assembly and follow Complete Maintenance/Recharge
Procedure for recharging.
8. Remove nozzle or hose and horn assembly. Inspect nozzle, hose gasket (O-ring), hose, and horn
assembly for damage – replace as necessary. Blow air through hose and horn or nozzle to insure
passage is clear of foreign material, and replace component parts as necessary.
9. Inspect the valve assembly for corrosion or damage to hose thread connection. Replace valve assembly
or component parts as necessary following the proper recovery and recharge procedures. If valve removal
is necessary, complete all steps in the Complete Maintenance/Recharge Procedure.
10. Install nozzle or hose and horn assembly.
11. Install new tamper seal, and record service data on the extinguisher inspection tag.
12. Replace the extinguisher on the wall hanger making sure that it fits the bracket properly – replace the
bracket if necessary.
COMPLETE MAINTENANCE – SIX-YEAR TEARDOWN
NFPA 10 Every six years, stored-pressure extinguishers shall be emptied and subjected to the applicable
maintenance procedures. When the applicable maintenance procedures are performed during periodic
recharging, the six-year requirement shall begin from that date.
WARNING:
a. Before attempting to devalve the extinguisher for Maintenance, Hydrotest, or Recharging, be sure that it
is completely depressurized. Halon 1211 generates a vapor pressure of 22 psi at 70°F. NEVER VENT
TO THE ATMOSPHERE. Recover agent and vapor according to the instructions below.
b. Never have any part of your body over the extinguisher while removing the valve assembly.
c. Halon 1211 shall not be mixed with even the slightest amount of moisture. Prolonged exposure of a
devalved cylinder to ambient air shall be avoided to prevent moisture contamination and cylinder
rusting.
1. Complete items 1 through 9 in Maintenance/Service Procedure above.
2. Attach the appropriate recharge adapter to the extinguisher operating valve. Empty the extinguisher of all
pressure and Halon 1211 using a Halon 1211 recovery/recharge system and a bulk Halon 1211 supply
cylinder with sufficient empty capacity to accept the contents of the extinguisher.