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OWNERS SERVICE MANUAL 

NO. 05605 

INSTALLATION, OPERATING & SERVICING INSTRUCTIONS 

 

Wheeled  

 

 

 

 

Models 450, 451, 452 (  25 Cu. Ft. Nitrogen Cylinder 16” wheels) 
Models 467, 468, 469 (110 Cu. Ft. Nitrogen Cylinder 16” wheels) 
Models 470, 471, 472 (110 Cu. Ft. Nitrogen Cylinder 36” wheels) 

Stationary 

Models 481, 482, 483 (  23 Cu. Ft. Nitrogen Cylinder) 
Models 484, 485, 486 (110 Cu. Ft. Nitrogen Cylinder) 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 

              
 
 
            
 
 
              

 

 

All fire extinguishers should be installed, inspected and maintained in 
accordance with the National Fire Protection Association standard titled 
"Portable Fire Extinguishers", NFPA-10 and the requirements of local 
authorities having jurisdiction. 
 
When maintenance is indicated it should 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 void 
the Amerex extinguisher warranty and UL listing.  DO NOT 
SUBSTITUTE. 

 

RECHARGE FIRE EXTINGUISHERS IMMEDIATELY AFTER ANY USE 

REFERENCES IN THIS MANUAL: 

 

AVAILABLE FROM: 

NFPA-10

  Portable Fire Extinguishers 

 

National Fire Protection Association 

 

 

 

 

 

1 Batterymarch Park, P.O, Box 9101 

 

 

 

 

 

Quincy, MA  02269-9101 

 

CGA C-1

 Methods for Hydrostatic Testing of 

Compressed Gas Association, Inc. 

Compressed Gas Cylinders    

 

4221 Walney Road, 5

th

 Floor 

CGA C-6

 Standard for Visual Inspection of 

Chantilly, VA  20151-2923 

Compressed Gas Cylinders 

AMEREX CORPORATION – P.O. BOX 81 – TRUSSVILLE, ALABAMA  35173-0081 

Phone:  205/655-3271     Fax:  800/654-5980 

e-mail:  

sales@amerex-fire.com

      Web Page:  

http://www.amerex-fire.com

 

 

Printed in U.S.A. 

0M05605H Rev.10/11 

 

 

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Summary of Contents for 450

Page 1: ...ry 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 ...

Page 2: ... 13 9 mPa at 70ºF 21ºC ambient temperature See the Troubleshooting Guide for pressure temperature allowances The lockwire seal should be intact 6 Remove and save the Safety Vent Plug installed on all T handle nitrogen valves Connect the nitrogen supply hose firmly to the nitrogen cylinder valve Make sure that there are no kinks in this hose 7 Disconnect the discharge hose assembly from the agent c...

Page 3: ... back 20 feet from the fire and aim at base of fire nearest you 4 Open hose and nozzle firmly and be prepared for discharge recoil Open nozzle by pulling the handle fully toward you Slowly sweep side to side across the base of the fire and past both edges Progressively follow up until the fire is extinguished DISCHARGE TIME APPROXIMATE See extinguisher nameplate label EFFECTIVE RANGE OF THE AGENT ...

Page 4: ...t it is completely out 1 Confirm that the nozzle lever is in the CLOSED position 2 Close the argon valve move T handle to CLOSED position 3 Remove ring pin and CLOSE agent cylinder valve Valve A in Fig 1 to prevent further chemical from entering the hose 4 Remove ring pin and OPEN pressure vent valve Valve B in Fig 1 to allow argon gas to by pass the chemical and pressurize the hose 5 Open dischar...

Page 5: ...6 R a thru R d for Amerex Regulated Wheeled Models 467 468 469 470 471 472 and Regulated Stationary Models 484 485 and 486 NOTE The Getz Manufacturing Universal Wheeled Extinguisher Service Kit is available so that NFPA 10 required maintenance functions can be performed AMEREX CORPORATION DOES NOT SERVICE MAINTAIN OR RECHARGE FIRE EXTINGUISHERS THIS MANUAL IS PUBLISHED AS A GUIDE TO ASSIST QUALIFI...

Page 6: ... and nitrogen supply hose must be hydrostatically tested every 12 years Test pressure a Agent Cylinder 500 psi 3447 kPa b Hose Assembly 300 psi 2068 kPa 4 Check the hydrostatic test date on the crown of the nitrogen cylinder The nitrogen cylinder must be retested in accordance with DOT regulations 5 Check the gauge on the nitrogen cylinder If the pressure is below 1700 psig 11 7 mPa repressurize t...

Page 7: ...m Flow Pressure Victor SR 450L 225 245 psi 140 psi MECO P 600 235 255 psi 140 psi Victor SR 450E 225 245 psi 140 psi WARNING IF THE PRESSURE READING EXCEEDS THE GIVEN PARAMETERS QUICKLY CLOSE THE NITROGEN CYLINDER T HANDLE OR HANDWHEEL VALVE AND VENT THE PRESSURE BY OPENING THE FLOW CHAMBER BALL VALVE REGULATORS CANNOT BE FIELD ADJUSTED THEY MUST BE REPLACED IF FOUND TO BE OUT OF TOLERANCE R c Obs...

Page 8: ...cylinder cap threads must be clear and the cap securely installed onto the vent spacer and agent cylinder to allow pressure to slowly vent after performing the siphon tube clearing and gas tube integrity checks 12 To perform a siphon tube clearing and gas tube integrity check a Remove the service kit Agent Hose Adapter from the discharge hose assembly and install it securely onto the agent cylinde...

Page 9: ...and with the lever in the Closed forward position into the nozzle mount 16 Remove the safety vent plug from the argon cylinder Reconnect the high pressure hose securely to the nitrogen cylinder valve Wipe the extinguisher clean Record service data on the inspection tag according to NFPA 10 requirements and attach to extinguisher Return extinguisher to its proper location RECHARGE NFPA 10 Rechargin...

Page 10: ...re Seal Assembly Carefully follow the installation instructions contained in the Moisture Seal Assembly package including the installation of a new clear hose gasket in the female hose coupling 7 Remove the agent cylinder fill cap and gasket Clean fill cap threads and vent port lubricate the cap gasket and set parts aside Check the condition and type of any remaining chemical replace any dry chemi...

Page 11: ... Valve seat has leaked and has pressurized the agent cylinder Follow Recharge Procedure for restoring the extinguisher to service 3 Nitrogen pressure is too low Valve is closed Tamper seal is intact No pressure observed in the agent cylinder Leakage in the nitrogen valve at other than the valve seal Replace with a properly charged nitrogen cylinder 4 Shutoff nozzle does not move freely Disassemble...

Page 12: ...side brackets and over the top bracket 2 The second loop is a REVERSE loop Notice that the hose passes behind the loop on this reverse loop If instructions are followed the hose will uncoil without kinks 3 The next loop is a regular hose in front loop Succeeding loops are alternated reverse front reverse etc for six full loops 4 Adjust the loops so that the nozzle or extension wand fits into the n...

Page 13: ...plete 1 5C 10213 Gauge 3000 psi 1 5D 09897 Valve Stem Assembly 6 5E 00501 Spring 6 6 04128 Nitrogen Cylinder 110 cu ft Charged with Cap Valve Gauge 1 7 02234 Nitrogen Hose Assembly 1 8 11024 Retaining Strap w Hose Hanger 1 9 11021 Retaining Strap Bottom Nitrogen Cylinder 1 10 16483 Bolt Washer Wing Nut 1 11 07485 07484 Pictogram 467 470 485 Pictogram 468 469 471 472 486 487 1 12 07025 Wheel Asy 36...

Page 14: ... Handle Quick Release 1 6B 06373 Valve Lever T Handle Complete 1 6C 10213 Gauge 3000 psi 1 6D 09897 Valve Stem Assembly 6 6E 00501 Spring 6 7 03817 Nitrogen Cylinder 23 cu ft Charged with Cap Valve Gauge 1 8 04072 Saddle Clamp WUS 1 9 16483 Bolt Washer Wing Nut 1 10 07485 07484 Pictogram 450 Pictogram 451 452 1 11 07751 Wheel Asy 16 with Hub Cap Washer Retaining Pin Semi Pneu 1 12 04945 Hub Cap 16...

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