Amerex 08220 - Manual (Page 5)

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INSPECTION
INSPECTION (NFPA-10) is a "quick check" intended to give reasonable assurance that an extinguisher
is fully charged and operable. This is done by seeing that it is in its designated place, that it has not
been actuated or tampered with, and that there is no obvious physical damage or condition to prevent
operation.
PERIODIC INSPECTION PROCEDURES
(Monthly or more often if circumstances dictate)
(NFPA-10) 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 or "hefting".
6. Examine for obvious physical damage, corrosion, leakage or clogged nozzle.
7. Pressure gauge reading in the operable area.
MAINTENANCE
MAINTENANCE (NFPA-10) Maintenance should be performed at least once a year (or more
frequently if indicated by an inspection). Maintenance is a "thorough check" of an 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.
MAINTENANCE PROCEDURE
1.
Clean extinguisher to remove dirt, grease or foreign material. Check to make sure that the
instruction nameplate and FM manifest are securely fastened and legible. Inspect the cylinder
for corrosion, abrasion, dents or weld damage. If any of these conditions are found and you
doubt the integrity of the cylinder, hydrostatically test to factory test pressure (585 psi [4035
kPa]), using the proof pressure method, in accordance with CGA Pamphlet C-6 and NFPA
Pamphlet 10. See proper method of depressurizing and reclaiming chemical in "Recharge
Procedures". NOTE: When cleaning avoid use of solvents around the pressure gauge. They
could seriously damage the plastic gauge face.
2. Inspect the extinguisher for damaged, missing or substitute parts. Only factory replacement
parts are approved for use on Amerex fire extinguishers.
3.
Weigh extinguisher and compare with weight printed in the "Maintenance" section on the
nameplate (label). Recharge extinguisher if weight is not within indicated allowable tolerances
(see instructions in "Recharge Procedure").
4.
Check the date of manufacture stamped on the bottom of the extinguisher for model B570 and
on the wall hanger loop for Model 570. Cylinder must be hydrostatically (proof pressure) tested
every 12 years to the test pressure indicated on the nameplate (585 psi [4035 kPa]).