Amerex 05614 - Manual (Page 6)

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d. AFTER ALL PRESSURE HAS BEEN RELIEVED, SLOWLY OPEN THE FILL CAP AND
REMOVE THE TEST KIT VENT SPACER.
e. Re-examine the dry chemical agent to determine if any obstructions were cleared from the siphon
tube and have risen to the liquid surface.
f. Clean the fill cap and agent cylinder thread surfaces. Install the fill cap gasket and securely
install fill cap.
13. Disconnect the high pressure hose from the nitrogen cylinder valve. Securely install the service kit
Nitrogen Cylinder Pressure Check Gauge Assembly to the nitrogen cylinder valve outlet and verify the
indicated cylinder gauge pressure. Nitrogen 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 P/N 01560, MUST BE INSTALLED TO
PROTECT SERVICE PERSONNEL FROM A HIGH VELOCITY DISCHARGE IN CASE THE LEVER IS
ACCIDENTALLY OPENED.
14. Install a new Amerex P/N 07411 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 Page 7). Install
nozzle with the lever in the Closed (forward) position into the nozzle mount.
16. Remove the safety vent plug from the nitrogen 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
WARNING: BEFORE ATTEMPTING TO RECHARGE BE SURE THIS EXTINGUISHER IS COMPLETELY
DEPRESSURIZED. THERE IS A CHECK VALVE IN THE SYSTEM WHICH PREVENTS
NITROGEN PRESSURE FROM ESCAPING FROM THE AGENT CYLINDER WHEN THE
NITROGEN HOSE IS DISCONNECTED. THE AGENT CYLINDER MAY BE PRESSURIZED
EVEN THOUGH NO PRESSURE ESCAPES FROM THE CYLINDER NITROGEN
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:
RECHARGING PROCEDURE
1. To depressurize:
a. Close the "T" handle on the nitrogen valve (or hand wheel valve if so equipped).
b. Carefully tip extinguisher over until it rests on both wheels and handle. (In this position much
of the agent will remain in the cylinder).
c. Open nozzle valve slowly to clear hose of any remaining pressure and chemical (be prepared
for a recoil and discharge of agent).
d. Insure that all pressure has escaped before further disassembly.
e. Stand extinguisher upright after complete depressurization.