Amerex 05619 User Manual
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COMPLETE MAINTENANCE (SIX YEAR TEARDOWN)
COMPLETE MAINTENANCE (Six Year Teardown) [NFPA-10] Every six years, stored pressure
extinguishers that require a 12 year hydrostatic test shall be emptied and subjected to the applicable
maintenance procedures. When the applicable maintenance procedures are performed during periodic
recharging or hydrostatic testing, the six year requirement shall begin from that date.
Note: some states require Complete Maintenance on an Annual Basis. Check with your
Amerex servicing distributor to see if this applies to you. NFPA-10 requires that a
"verification of service" external collar tag be installed on the extinguisher whenever "Six
Year Maintenance" is performed. The "verification of service" tag can only be installed if
the operating valve has been removed. A "Six Year Maintenance" service decal must
also be attached to the extinguisher cylinder.
COMPLETE MAINTENANCE (SIX YEAR TEARDOWN) PROCEDURE
1. Discharge powder and pressure into a "closed" dry powder recovery system (several are
commercially available). Make sure that the extinguisher is completely empty and depressurized.
CAUTION: Do not contaminate by mixing with other types of dry powder or dry chemical.
2. Perform all required maintenance in Steps 1 through 8 of "Maintenance Procedure" (Annual).
3. VERIFY THAT NO PRESSURE REMAINS IN THE EXTINGUISHER (slowly squeeze discharge
lever, aiming away from persons or objects which might be injured or damaged). Remove the
valve assembly from the cylinder and inspect it for signs of corrosion or damage to the threads.
Replace parts as necessary.
4. Disassemble valve assembly by removing the downtube, spring and valve stem assembly.
Remove the collar o-ring from the valve assembly.
5. Complete steps 2 through 13 of Recharge Procedure.