Amerex 05617 - Manual (Page 5)

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. Bleeder valve cap on operating valve installed.
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 4-4.1 & 4-4.2] At least once a year (or more frequently if indicated by an inspec-
tion), 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.
MAINTENANCE PROCEDURE
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
nameplate and U/L 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 (900 psi, [6.2 MPa]), 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 “Recharge” section on the nameplate (label).
Recharge extinguisher if weight is not within indicated allowable tolerances.
4. Check the date of manufacture stamped on the extinguisher cylinder dome. Cylinder must be hydrostatically
(proof pressure) tested every 12 years to the test pressure indicated on the nameplate (900 psi, [6.2 MPa]).
5. Visually inspect the pressure gauge:
a. if bent, damaged or improper gauge, depressurize and replace
b. if pressure is low, check for leaks
c. if overpressurized (overcharged), depressurize the extinguisher and follow recharge instructions
6. Remove Ring (Safety) Pin and check for freedom of movement. Replace if bent or if removal appears difficult.
7. Visually inspect the agent fill plug for damage or distortion. Replace as necessary ONLY AFTER PROPER
DEPRESSURIZATION PROCEDURES HAVE BEEN PERFORMED (SEE COMPLETE MAINTENANCE -
SIX YEAR TEARDOWN INSTRUCTIONS).
8. Check the nozzle shutoff lever for freedom of movement (open and close several times). If the operation is
impeded, disassemble the nozzle, replace parts and/or properly lubricate as necessary. Make sure that
the nozzle tip is clear and unobstructed.
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