Amerex 260, 262 fire extinguisher OWNER'S SERVICE MANUAL

OWNER'S SERVICE MANUAL

NO. 13259

INSPECTION, MAINTENANCE AND RECHARGE

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, horns and all metal parts meet precise specifications and are subjected to multiple inhouse inspections and tests for acceptability. There are substitute parts available that are 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

NFPA-10 Portable Fire Extinguishers

AVAILABLE FROM

National Fire Protection Association

Quincy, MA 02269-9101

CGA C-1 Methods for Hydrostatic Testing of Compressed Gas Cylinders

CGA C-6 Standard for Visual Inspection

Compressed Gas Association

1235 Jefferson Davis Hwy, Suite 501

Arlington, VA 22202 of Compressed Gas Cylinders

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

Phone: 205/655-3271 Fax: 800/654-5980 e-mail: [email protected]

Web Page: http://www.amerex-fire.com

Printed in U.S.A.

0

0M13259K Rev. 02/10

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.

1

RECHARGE

RECHARGING (NFPA-10) The replacement of the extinguishing agent and includes the expellant for this type of extinguisher.

WARNING: a. Before attempting to recharge be sure this extinguisher is completely depressurized. b. Use a regulated nitrogen pressurizing source. Set the regulator no more than 25 psi (172 kPa) higher than the gauge operating pressure. c. Check and calibrate regulator gauge at frequent intervals. The regulator gauge should be used to determine when the intended charging pressure has been reached. Do not use the extinguisher gauge for this purpose. d. Never leave an extinguisher connected to a regulator of a high pressure source for an extended period of time. A defective regulator could cause the cylinder to rupture due to excessive pressure.

RECHARGING PROCEDURE

1. Complete the “Maintenance-Service Procedure”, items 1 thru 10.

2. Discharge all remaining pressure and wet chemical solution, making sure that there is no remaining pressure. Do not top off or reuse wet chemical.

3. Remove the valve assembly and disassemble by removing downtube assembly (use a wrench on the brass retainer, not the plastic tube), spring and valve stem from the valve assembly. Remove the collar o-ring from the valve assembly.

4. Thoroughly rinse all parts with clean water and wipe dry with a soft cloth. Blow the valve out with air or nitrogen.

Inspect the collar o-ring, valve stem and spring – replace parts if worn or damaged. Lubricate the collar o-ring and small o-ring on the valve stem with Visilox V-711 (do not lubricate the valve stem seal). Inspect the downtube. If it is cracked or deformed replace with proper downtube (see Parts List). Inspect downtube o-ring, replace if necessary.

5. Remove fill tube. Rinse the cylinder with clean water and inspect the interior following CGA Visual Inspection

Standard, Pamphlet C-6. Replace fill tube.

6. Model B260 (6 liter) – Recharge using the Model 530-2 Liquid Charge following the instructions on the package.

Model B262 (2½ Gallon) – Recharge using the Model 660 Liquid Charge following the instructions on the package.

7. Install a “Verification of Service” collar around neck of cylinder. Install valve assembly to the cylinder and properly align.

CAUTION: HAND TIGHTEN THE VALVE COLLAR NUT 100-125 IN LBS. MAX. (1.15-1.44 KG/M).

OVER-TIGHTENING WITH A WRENCH WILL DAMAGE THE VALVE.

8. Install a P/N 09492 Fill (Pressurizing) Adapter on the valve outlet (where the hose assembly attaches) and pressurize with nitrogen to 100 psi (690 kPa). The pressure regulator should be set to no more than 125 psi (862 kPa).

Remove Fill Adapter.

9. Check the collar, gauge, cylinder welds and valve orifice for leaks using a leak detection fluid or a solution of soapy water. Remove leak detection fluid from the valve assembly by blowing out with air and wipe exterior of the extinguisher to dry.

10. Install hose assembly into the operating valve. Torque swivel nut lightly with a 15/16” wrench. Install in hose clip.

11. Install ring pin with ring facing front of the extinguisher. Install new tamper seal. Record recharge date and attach new recharge tag.

12. Weigh assembled extinguisher and confirm that the total weight is within the allowable tolerances indicated in the

Maintenance section on the extinguisher nameplate (label).

2

TROUBLESHOOTING GUIDE

WARNING: Determine the source of a leak before the extinguisher is depressurized. THE EXTINGUISHER MUST BE

COMPLETELY DEPRESSURIZED BEFORE ANY ATTEMPT IS MADE TO DEVALVE IT AND CORRECT ANY LEAKAGE

PROBLEM. To depressurize – hold the extinguisher in an inverted position and slowly squeeze the discharge handle. Some liquid remaining in the downtube will be discharged so care should be taken in the area used for depressurization. Thoroughly clean all valve parts after depressurization and valve removal.

1.

2.

3.

5.

6.

Leak at collar o-ring

Leak through valve

Leak around gauge threads

Restricted or intermittent agent discharge stream

Leak in the cylinder

PARTS LIST

Models B260 & B262

Remove valve assembly, clean collar (knurled) nut thoroughly and install new o-ring. Lubricate the o-ring with Visilox V-

711.

Install new valve stem assembly. Check valve seat for scratches or foreign matter.

Remove gauge* and reinstall using Teflon tape on the gauge threads.

Remove defective gauge* and install a new P/N 06479 gauge using Teflon tape on the gauge threads.

Check downtube strainer and discharge nozzle for dirt, sediment or impediments. Clean or replace parts as necessary.

Contact Amerex if under warranty, otherwise mark "Rejected" and return to owner.

Install new footstand (P/N 03109) using Dow Corning RTV-

732 silicon rubber adhesive (P/N 04488).

For

6 Liter & 2 ½ Gal. WET CHEMICAL

Stored Pressure Stainless Steel Extinguishers (Brass Valve) ITEM

NO.

PART

NO. DESCRIPTION

STD

PKG

1

4

4A

5

6

6A

2

3

7A

8

16

17

¡

¡

¡

¡

¡

¡

¡

14380

16043

16101

00160

00532

01387

07762

01563

01564

17420

Hanger Loop w/Screw (optional)

6L Hose Assembly

2 ½ Hose Assembly

Ring Pin, Stainless Steel

Chain(Nylon) for Ring Pin

Lock Wire Seal (Yellow)

Lever & Rivet

Rivet only for Lever

Rivet only for Handle (2 required)

100 psi Pressure Gauge (SS Tube)

10

11

14878

05243

Valve Stem Asy

Valve Stem O-ring

12 00383 Spring

14

14A

16266

16267

05690

14776

09492

Downtube/Retainer Assembly 6L

Downtube/Retainer Assembly 2½ Gal

O-ring – Downtube/Retainer

Strap & Clip Asy (Black Plastic) 3/8”

Fill (Pressurizing) Adapter

1

1

1

12

1

1

1

1

04488

06247

13503

13815

Adhesive (3 oz. tube for Footstand)

Visilox Lubricant (5 oz. Tube)

Model 530-2 Wet Chemical charge 6L

Model 660 Wet Chemical charge 2½ Gal

1

1

1

2

1

14669 Caution Placard English/Spanish

15874

NOTE:

¡

Caution Placard English/French

All Valve Assemblies include new Valve Body,

Pressure Gauge, Wing Nut Lever & Handle

PARTS NOT PICTURED

1

1

6

1

1

24

24

500

1

24

1

24

6

24

6

24

6

3