Amerex 05620 - Manual (Page 4)

PERIODIC INSPECTION PROCEDURES
(Monthly or more often if circumstances dictate)
(NFPA-10 4-3.2) A “quick check” should be made of the extinguisher for the following:
1. Located in designated place.
2. No obstructions to access or visibility.
3. Operating instructions on nameplate and facing outward.
4. Seals and tamper indicators not broken or missing.
5. Determine fullness by weighing on a scale with adequate capacity.
6. Examine for obvious physical damage, corrosion, leakage or clogged nozzle.
7. Pressure gauge (Argon cylinder) reading in the operable area.
MAINTENANCE
MAINTENANCE (NFPA-10 4-4.1 & 4-4.2) At least once a year (or more frequently if indicated by an inspection),
MAINTENANCE should be performed. MAINTENANCE is a “thorough check” of the extinguisher. It is intended
to give maximum assurance that an extinguisher will operate effectively and safely. It includes a thorough
examination and any necessary repair or replacement. It will normally reveal the need for hydrostatic testing.
Note: NFPA-10 (4-3.2) spells out wheeled extinguisher maintenance procedures. Para. 4-4.1.3 requires that
REGULATORS on wheeled extinguishers be checked annually to meet manufacturer’s “dead set” and
“minimum flow” recommendations.
The Getz Mfg. P/N: 52576 Wheeled Extinguisher Service Kit is available so that you can perform these
required functions. Getz part numbers from the kit are referenced in this manual.
ANNUAL MAINTENANCE PROCEDURES
WARNING: BEFORE SERVICING BE SURE THE EXTINGUISHER AGENT CYLINDER IS NOT PRESSURIZED.
Note: This procedure will be best accomplished with the extinguisher in an upright position and on a level surface.
1. Clean extinguisher to remove dirt, grease or foreign material. Check to make sure that the instruction name-
plate is securely fastened and legible. Inspect the cylinders for corrosion, abrasion, dents or weld damage. If
damage is found, hydrostatically test in accordance with instructions in CGA Pamphlet C-1 and C-6 and NFPA
Pamphlet 10.
2. Inspect the extinguisher for damaged, missing or substitute parts. A careful inspection should be made of the
safety relief to make sure that it has not ruptured, corroded or been tampered with. Only factory replacement
parts are approved for use on Amerex fire extinguishers.
3. Check the date of manufacture on the extinguisher nameplate or on the agent cylinder dome. The agent
cylinder assembly and discharge hose assembly must be hydrostatically tested every 12 years. Test pressure
for the agent cylinder is 500 psi (3448 kPa). Test pressure for the hose assembly is 300 psi (0268 kPa).
4. Check the hydrostatic test date on the crown of the Argon cylinder. The Argon cylinder must be retested in
accordance with D.O.T. regulations every 5 years.
5. Check the gauge on the Argon cylinder. If the pressure is below 1700 psig (11.7 mPa) repressurize the cylinder
to 2015 psig (13.9 mPa) or replace it. A low pressure may indicate leakage. Check for leaks. A low gauge
reading may also result from low temperature. See the temperature/pressure relationship chart in the “Trouble-
shooting Guide”. Check the tamper indicator (lockwire seal) on the Argon valve and replace if necessary.
6. Inspect the wheels to insure they rotate freely. Lubricate as required.
WARNING: THE FOLLOWING STEPS SHOULD ONLY BE PERFORMED BY PROFESSIONALLY TRAINED AND QUALIFIED SERVICE
PERSONNEL THOROUGHLY FAMILIAR WITH INDUSTRY SERVICE PROCEDURES AND SAFETY PRECAUTIONS AND
HAVING THE NECESSARY EQUIPMENT TO PERFORM THE SERVICE PROPERLY.
ALL EXTINGUISHER AND SERVICE EQUIPMENT COMPONENTS, FITTINGS AND ADAPTERS MUST BE IN GOOD CONDI-
TION AND PROPERLY CONNECTED.