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All fire extinguishers shall be installed, inspected and maintained in accordance with the
Protection Association standard titled "Portable Fire Extinguishers", NFPA 10 or The National Fire Code of
Canada and the requirements of local authorities having jurisdiction.
When maintenance is indicated, it shall be performed by trained persons having proper equipment. Fire
extinguishers are pressure vessels and must be treated with respect and handled with care. They are
mechanical devices and require periodic maintenance to be sure that they are ready to operate properly and
safely. Amerex strongly recommends that the maintenance of portable fire extinguishers be done by a trained
professional – your local authorized Amerex Distributor.
Amerex Corporation makes original factory parts available to insure proper maintenance – USE OF
SUBSTITUTE PARTS RELEASES AMEREX OF ITS WARRANTY OBLIGATIONS. Amerex parts have
machined surfaces and threads that are manufactured to exacting tolerances. o-rings, hoses, nozzles, and all
metal parts meet precise specifications and are subjected to multiple in-house inspections and tests for
acceptability. There are substitute parts available that may be incorrectly labeled as UL component parts,
some are advertised as Amerex type. None of these meet UL requirements and all of them voids the Amerex
extinguisher warranty and UL listing. DO NOT SUBSTITUTE.
RECHARGE FIRE EXTINGUISHERS IMMEDIATELY AFTER ANY USE
REFERENCES IN THIS MAUNUAL:
NFPA 10 Portable Fire Extinguishers
JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
CGA C-1 Methods for Pressure Testing Compressed Gas
Cylinders
CGA C-6 Standard for Visual Inspection of Steel
Compressed Gas Cylinders.
National Fire Code of Canada
AMEREX CORPORATION DOES NOT SERVICE, MAINTAIN OR RECHARGE FIRE EXTINGUISHERS.
THIS MANUAL IS PUBLISHED AS A GUIDE TO ASSIST QUALIFIED 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. DUE TO THE POSSIBILITY THAT PRIOR
SERVICE PERFORMED ON THIS EQUIPMENT MAY HAVE BEEN IMPROPERLY DONE, IT IS
EXTREMELY IMPORTANT THAT ALL WARNINGS, CAUTIONS AND NOTES IN THIS MANUAL BE
CAREFULLY OBSERVED. FAILURE TO HEED THESE INSTRUCTIONS COULD RESULT IN SERIOUS
INJURY. AMEREX ASSUMES NO LIABILITY FOR SERVICE, MAINTENANCE OR RECHARGE OF FIRE
EXTINGUISHERS BY PUBLISHING THIS MANUAL THIS MANUAL IS ATTACHED TO EVERY NEW
EXTINGUISHER SHIPPED FROM THE FACTORY. IT CONTAINS VALUABLE INFORMATION WHICH
SHALL BE STUDIED BY EVERYONE WHO WILL USE OR SERVICE THE EXTINGUISHER. THIS
MANUAL SHALL BE STORED IN A CONVENIENT LOCATION FOR EASY REFERENCE.
AMEREX CORPORATION – P.O. BOX 81 – TRUSSVILLE, ALABAMA 35173-0081
e-mail:
PN 16672
OWNER'S SERVICE MANUAL
INSTALLATION, OPERATING & SERVICING INSTRUCTIONS
Phone: 205/655-3271
sales@amerex-fire.com
HALOTRON I WHEELED EXTINGUISHERS
AVAILABLE FROM:
National Fire Protection Association, 1 Batterymarch Park,
Quincy, MA 02169-7471
Compressed Gas Association, 14501 George Carter Way,
Chantilly, VA 20151-2923
Compressed Gas Association, 14501 George Carter Way,
Chantilly, VA 20151-2923
National Research Council Canada, 1200 Montreal Road,
Ottawa, ON K1A 0R6 Canada
Fax: 800/654-5980
Web Page:
http://www.amerex-fire.com
MANUAL PN 16672
MODELS B673, B674, B675
National Fire
04/2020
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Summary of Contents for Amerex B673
- Page 1 There are substitute parts available that may be incorrectly labeled as UL component parts, some are advertised as Amerex type. None of these meet UL requirements and all of them voids the Amerex extinguisher warranty and UL listing. DO NOT SUBSTITUTE.
- Page 2 Record the date the unit is being placed into service on the inspection tag and attach it to the extinguisher. INSTALLATION Do not place this extinguisher close to a potential fire hazard. Amerex recommends a location no less than a 50-foot distance from the hazard while leaving an unobstructed access. Avoid placing it in an extremely hot or cold area.
- Page 3 OPERATION WARNING: PERSONS EXPECTED TO USE THIS EXTINGUISHER SHALL BE MADE AWARE OF THE CONFINED SPACE LIMITATIONS AND TRAINED IN INITIATING ITS OPERATION AND PROPER FIRE FIGHTING TECHNIQUE. THE CONCENTRATED AGENT CAN PRODUCE TOXIC BY-PRODUCTS. AVOID INHALATION OF THESE MATERIALS BY EVACUATING THE CONFINED SPACE.
- Page 4 SHUTDOWN Close the discharge hose valve. Rotate cylinder discharge valve lever 90° to the CLOSED position. Locate the extinguisher in an open area where blow down can be accomplished safely. 3. Tip the extinguisher to rest the carriage handle/tow loop on the ground. Slowly open the discharge hose valve and cylinder valve.
- Page 5 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.
- Page 6 2. Attach the appropriate recharge adapter (PN 09857) to the extinguisher operating valve on the extinguisher cylinder. Empty the extinguisher of all pressure and Halotron l using an Amerex PN 14538 Halotron l Recharge Kit and a bulk Halotron l supply cylinder with sufficient empty capacity to accept the contents of the extinguisher.
- Page 7 Instructions, which is packaged with the Amerex Recharge Kit (PN 14538). 1. Perform the Complete Maintenance steps 1 through 7. 2. Install the proper Amerex Recharge Adapter and draw a vacuum of 27” of mercury (adjusted for altitude variations) [see your vacuum pump manual for detailed instructions].
- Page 8 DEPRESSURIZED. THE EXTINGUISHER MUST BE COMPLETELY DEPRESSURIZED BEFORE ANY ATTEMPT IS MADE TO REMOVE THE VALVE ASSEMBLY AND CORRECT THE LEAKAGE PROBLEM. SEE INSTRUCTIONS PACKAGE WITH THE AMEREX HALOTRON l RECHARGE KIT PN 14538 FOR THE PROPER METHOD OF DEPRESSURIZING THE EXTINGUISHER TO AVOID UNNECESSARY DISCHARGE AND MINIMUM AGENT LOSS.
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