User Manual

Manual 05615 Rev. D Page 7
TROUBLESHOOTING GUIDE
WARNING: BEFORE ATTEMPTING TO CORRECT ANY LEAKAGE PROBLEM, BE SURE THAT THE
CYLINDER AND HOSE ARE COMPLETELY EMPTY AND DEPRESSURIZED. Check to determine the
source of a leak before the extinguisher is emptied. Leakage repairs will require depressurization and
removal of the valve assembly. Use Getz HR-1 or other "APPROVED" recharge/recovery system to
depressurize extinguisher.
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.