8
13.
Disconnect the high pressure hose from the argon cylinder valve. Securely install the service kit
Argon/Nitrogen Cylinder Pressure Check Gauge Assembly to the nitrogen cylinder valve outlet
and verify the indicated cylinder gauge pressure. Argon pressure should conform to the
temperature correction chart provided in the Troubleshooting section of this manual. Close the
nitrogen cylinder valve and disconnect the Pressure Check Gauge Assembly.
WARNING:
IF THE NITROGEN CYLINDER VALVE HAS A "T" HANDLE QUICK OPENING
OR A HANDWHEEL QUICK OPENING TRIP RELEASE, THE SAFETY VENT PLUG
SHIPPED WITH THE EXTINGUISHER, OR THE TEST KIT SAFETY VENT PLUG MUST BE
INSTALLED TO PROTECT SERVICE PERSONNEL FROM A HIGH VELOCITY DISCHARGE
IN CASE THE LEVER IS ACCIDENTALLY OPENED.
14.
Install a new Amerex Moisture Seal per instructions in the package. Securely connect the
discharge hose to the extinguisher.
When assembling the hose to the agent cylinder or
nozzle to the hose, tighten the coupling ¼ turn after contacting the hose gasket
.
15.
Coil the hose on to the extinguisher hose rack using the Reverse Loop Procedure (see
instructions in this manual). Install shut-off nozzle (and/or extension wand) with the lever in the
Closed (forward) position into the nozzle mount.
16.
Remove the safety vent plug from the argon cylinder. Reconnect the high pressure hose
securely to the nitrogen cylinder valve. Wipe the extinguisher clean. Record service data on
the inspection tag according to NFPA-10 requirements and attach to extinguisher. Return
extinguisher to its proper location.
RECHARGE
NFPA 10 – Recharging is the replacement of the extinguishing agent and also includes the
expellant for this type of extinguisher.
RECHARGING PROCEDURE
WARNING:
BEFORE ATTEMPTING TO RECHARGE, BE SURE THIS EXTINGUISHER IS
COMPLETELY DEPRESSURIZED. THERE IS A CHECK VALVE IN THE SYSTEM
WHICH PREVENTS ARGON PRESSURE FROM ESCAPING FROM THE AGENT
CYLINDER WHEN THE ARGON HOSE IS DISCONNECTED. THE AGENT
CYLINDER MAY BE PRESSURIZED EVEN THOUGH NO PRESSURE ESCAPES
FROM THE CYLINDER ARGON CONNECTION.
NOTE:
Proper procedure for recharging any dry chemical extinguisher includes the use of a
“closed recovery system (NFPA-10). The Getz Model SV1 400 VACU-FILL SYSTEM is
ideal for this application – it provides for the recovery of the remaining agent by direct
discharge into the system, trapping the “fines” while allowing the nitrogen to escape and
provides a more accurate fill of the extinguisher.
IF A “CLOSED RECOVERY SYSTEM” IS NOT AVAILABLE PROCEED AS
FOLLOWS:
1.
To depressurize:
a. Close the argon cylinder valve.
