Amerex 13259 - Manual (Page 2)

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AMEREX CORPORATION DOES NOT SERVICE, MAINTAIN OR RECHARGE FIRE EXTINGUISHERS. THE MAINTENANCE AND
RECHARGE PORTION OF THIS MANUAL IS PUBLISHED AS A GUIDE TO ASSIST SERVICE PERSONNEL IN THE INSPECTION,
MAINTENANCE AND RECHARGE OF AMEREX FIRE EXTINGUISHERS ONLY. NO INSTRUCTION MANUAL CAN ANTICIPATE
ALL POSSIBLE MALFUNCTIONS THAT MAY BE ENCOUNTERED IN THE SERVICE OF FIRE EXTINGUISHERS. AMEREX ASSUMES
NO LIABILITY FOR SERVICE, MAINTENANCE OR RECHARGE OF FIRE EXTINGUISHERS BY PUBLISHING THIS MANUAL.
INSPECTING THE EXTINGUISHER
This extinguisher should be inspected at regular intervals (monthly or more often if circumstances require) to insure that it is ready for use.
INSPECTION (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 (label) 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 – SERVICE PROCEDURE
MAINTENANCE (NFPA-10) 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.
1. Clean extinguisher to remove dirt, grease or foreign material. Check to make sure that the instruction nameplate is 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, using the proof pressure method and a suitable cage, in accordance with
CGA Pamphlet C-1 and NFPA Pamphlet 10.
a. 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 on the Maintenance section of the nameplate (label). Recharge extinguisher if
weight is not within the indicated allowable tolerances.
4. Check the date of manufacture on the extinguisher cylinder hanger loop or on the extinguisher nameplate. Cylinder must be
hydrostatically tested every 5 years to the test pressure indicated on the label. REPLACE EXTINGUISHING AGENT WITH NEW
AMEREX CHARGE AT TIME OF HYDROTEST.
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 over pressurized (overcharged), invert the extinguisher and reduce to 50 psi (345 kPa) by depressing the valve lever.
Repressurize to 100 psi (690 kPa). Check for leaks.
CAUTION: Be prepared for some discharge of liquid.
6. Inspect the footstand (base). If cracked or broken replace with proper footstand.
7. Check ring pin for freedom of movement by breaking the seal and removing the pin. Replace the ring pin if bent or if removal is
difficult.
8. Inspect discharge lever for dirt or corrosion that might impair freedom of movement. Inspect carrying handle for proper installation.
If lever, handle or rivets are damaged or distorted, replace with proper Amerex part(s).
9. Remove hose assembly, inspect hose assembly for damage, replace as necessary. Blow air through hose assembly to insure
passage is clear of foreign material.
10. Inspect the valve assembly for corrosion or damage to hose thread connections. Replace valve assembly or component parts as
necessary following the proper depressurization and recharge procedures.
11. Install hose assembly into operating valve. Torque swivel nut lightly with 15/16” wrench. Install in hose clip.
12. Install new tamper seal and record service data on the extinguisher inspection tag.
13. Rehang the extinguisher on the wall hanger bracket making sure that it fits the hanger bracket properly – replace the bracket if
necessary.