Owner manual

7
TROUBLESHOOTING GUIDE
WARNING: BEFORE ATTEMPTING TO CORRECT ANY LEAKAGE PROBLEM, BE SURE THAT THE
AGENT CYLINDER IS COMPLETELY DEPRESSURIZED. Always use caution when opening the shutoff
nozzle or any other connection as a leaking nitrogen cylinder valve seat may have pressurized the agent
container refer to the recharge procedure for proper method of depressurization..
PROBLEM
CORRECTIVE ACTION
1.
Nitrogen cylinder gauge reads
low or high
Temperature may have affected the pressure reading
Temperature (F) 35º 70º 120º
Temperature (C) 2º 21º 49º
Recommended Pressure
psig 1880 2015 2200
mPa 13.0 13.9 15.2
Minimum Pressure
psig 1590 1700 1900
mPa 11.0 11.7 13.1
NO CORRECTIVE ACTION IS REQUIRED IF THE PRESSURE
IS WITHIN PARAMETERS STATED ABOVE.
2.
Nitrogen pressure is too low.
Valve is closed. Tamper seal is
intact. There is pressure in the
agent and nitrogen cylinders.
Valve seat has leaked and has pressurized the agent cylinder.
Follow Recharge Procedure for restoring the extinguisher to
service.
3.
Nitrogen pressure is too low.
Valve is closed. Tamper seal is
intact. No pressure observed in
the agent cylinder.
Leakage in the nitrogen valve at other than the valve seal.
Replace with a properly charged nitrogen cylinder.
4.
Shutoff nozzle does not move
freely.
Disassemble, clean and lubricate.
5.
Unable to remove the agent
cylinder cap.
Agent cylinder may be pressurized. Make no further attempt to
remove the cap until this is checked. See the Recharge
Procedure for proper depressurization method.
6.
Nitrogen hose cut, cracked or
abraded.
Replace hose assembly with P/N 02234.
7.
Chemical agent and pressure
leaking from the safety disc
assembly.
Inspect safety outlet for tightness or damage. Tighten if
necessary.
NOTE: Only tighten the large hex nut of the assembly. The small
round nut containing the holes is factory set to a specific torque
value. Do not attempt to adjust. If damaged or ruptured, replace
complete Amerex P/N 03787 safety disc assembly.