PN 08220
04/2020
5.
Inspect the cylinder interior following CGA Visual Inspection Standard, Pamphlet C
-
6.
6.
Fill Amerex Model 570/B570 cylinder with 30 pounds (13.6 KG) of Amerex Super D (Sodium Chloride) dry
powder. Use Amerex dry powder that has been kept moisture and contamination free.
7.
Clean cylinder O
-
ring seat and threads inside of cylinder collar with a small brush and wipe surfaces with
a clean damp cloth to remove dust. Lightly brush the collar O
-
ring seat with V
-
711. Install the operating
valve/downtube assembly hand tight.
8.
Attach the charging adapter to the valve discharge port.
WARNING: THIS EXTINGUISHER IS FACTORY PRESSURIZED USING ARGON. ARGON IS AN
INERT GAS THAT WILL NOT ADVERSELY REACT WITH COMBUSTIBLE METALS.
NITROGEN PRESSURIZING GAS COULD CAUSE A REACTION WHEN USED ON
CERTAIN TYPES OF COMBUSTIBLE METAL FIRES. DRY
-
AIR PRESSURIZATION
SHALL NEVER BE USED, AS EVEN THE SLIGHTEST AMOUNT OF MOISTURE WILL
CAUSE A VIOLENT REACTION WITH CLASS
-
D MATERIALS.
9.
With the extinguisher properly secured in an upright position, connect your argon pressurizing line with a
quick connect to the charging adapter. Set the Argon supply cylinder regulator to no more than 220 psi
(1520 kPa). Depress the extinguisher operating valve lever, and pressurize the extinguisher with argon to
195 psi (1345 kPa). When the desired pressure has been reached, release the operating lever. Shut off
Argon supply and remove the quick connect.
10.
Remove the charging adapter. Check extinguisher for leaks by applying leak detecting fluid or a solution
of soapy water to the valve
-
discharge orifice, around the collar O
-
ring sealing area, cylinder welds, and
gauge. Remove leak detecting fluid from valve assembly by blowing out with air or argon. Wipe exterior of
extinguisher to remove any remaining residue.
11.
Install the hose assembly to the operating valve. Reconnect the female swivel on the extension applicator
to the male swivel on the hose. Rotate the hose assembly several times to verify that the swivel operates
freely. Disconnect and clean the inside of the swivel female with a small brush and compressed air if
rotation is impeded. Install hose and extension applicator according to instructions on page 9.
12.
Install pull pin and tamper seal. Record recharge date, and attach new recharge tag.
13.
Weigh assembled extinguisher, and confirm that the total weight is within the allowable tolerances
indicated in the "
Maintenance
" section of the nameplate (label).
COMPLETE MAINTENANCE (SIX
-
YEAR TEARDOWN)
Every 6 years, stored
-
pressure extinguishers shall be emptied and subjected to the applicable maintenance
procedures. When the applicable maintenance procedures are performed during periodic recharging or
hydrostatic testing, the 6
-
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.
