WHEELED AND STATIONARY DRY CHEMICAL FIRE EXTINGUISHERS MODELS 150/350 Assembly, Operation, Recharge, Inspection, and Maintenance Manual

Transcription

1 WHEELED AND STATIONARY DRY CHEMICAL FIRE EXTINGUISHERS MODELS 150/350 Assembly, Operation, Recharge, Inspection, and Maintenance Manual

2 This manual is intended for use with ANSUL 150/350 Wheeled and Stationary Dry Chemical Fire Extinguishers. Those who operate, recharge, inspect, or maintain these fire extinguishers should read this entire manual. Specific sections will be of particular interest depending upon one s responsibilities. Fire extinguishers are mechanical devices that need periodic care. Inspection, to provide reasonable assurance that your fire extinguisher is fully charged and operable, will vary from hourly to monthly, based on the needs of the situation. Inspections should a l ways be conducted at regular interva l s. M a i n t e n a n c e, to p r ovide maximum assurance that the fire extinguisher will operate effectively and safely, must be conducted annually, or earlier when indicated by an inspection.

3 TABLE OF CONTENTS SECTION PAGE(S) Introduction Assembly 1 2 Operation 3 Recharge 4 7 Inspection 8 9 Maintenance Temperature Correction Chart 14 Service and Repair Warranty 19

4 INTRODUCTION F O R E WO R D When utilized, the Occupational Safety and Health Act rules require that the employer shall be responsible for the inspection, maintenance, and testing of all portable extinguishers in the workplace. Details are provided in 29 CFR (e) and in Appendixes A and B to Subpart L, referencing the provisions of NFPA 10 as guidelines. NFPA 10 entitled Standard for Portable Fire Extinguishers and NFPA 17 entitled Standard For Dry Chemical Extinguishing S y s t e m s are ava i l a ble from the National Fire Protection Association. Visit R E S P O N S I B I L I T Y The owner or occupant of a property in which fire extinguishers are located has an obligation for the care and use of these extinguishers at all times. By doing so, he/she is contributing to the protection of life and property. The nameplates and instruction manual should be read and thoroughly understood by all personnel who may be expected to use extinguishers. R E C H A R G E All extinguishers shall be recharged immediately after use, or when indicated by an inspection or maintenance examination. Recharge is the replacement or replenishment of the extinguishing agent and expellant gas. It also includes the replenishment of the expellant gas for certain types of extinguishers. I N S P E C T I O N Inspection is a quick-check to give reasonable assurance that an extinguisher is fully charged and operable. It includes checking that an extinguisher is in its designated location, that it has not been actuated or tampered with, and that there is no obvious physical damage or condition to prevent operation. The value of an inspection lies in the frequency, regularity, and thoroughness with which it is conducted. The frequency will vary from hourly to monthly, based on the needs of the situation. M A I N T E N A N C E Extinguishers shall be maintained at regular interva l s, not more than six months apart for stationary and one year apart fo r wheeled, or when specifically indicated by an inspection. M a i n t e n- ance is a thorough check to give maximum assurance that the extinguisher will operate effe c t i vely and safe l y. It includes a thorough examination and any necessary repair, recharge, or replacem e n t. It will normally reveal the need for hydrostatic testing. W E L D I N G / B R A Z I N G CAUTION When performing recharge, use only those materials specified on the extinguisher nameplate. The use of other recharging materials may reduce the efficiency, cause malfunction, or result in rupture of the extinguisher that could cause injury to the operator. Field repair of ANSUL wheeled extinguishers is allowed only if the repairs are make in accordance with good welding practices and the following restrictions: Repairs shall be made by means of a certified welder. Repairs MAY NOT BE MADE TO THE SHELL ITSELF. Thus, if the mild steel shell is damaged as by tearing of the parent metal from the shell, the extinguisher must be discarded. After completion of repairs, the extinguisher shall be hydrostatically tested in accordance with the ANSUL Hydrostatic Test Instruction Manual (Form No. F-7602). Welding is restricted to the handle, axle shroud, and nitrogen cylinder stand. H Y D ROT E S T IF, AT ANY TIME, AN EXTINGUISHER SHOWS EVIDENCE OF C O R ROSION OR MECHANICAL INJURY, IT SHALL BE SUBJECTED TO A HYDRO S TATIC PRESSURE T E S T, OR REPLACED. N OT I C E Extinguishers utilizing a cylinder that has a U. S. D e p a rtment of Tra n s p o rtation (DOT) mark i n g shall be hydrostatically tested, or replaced, according to the requirements of the U. S. D e p a rtment of Tra n s p o rtation (DOT ). N OT I C E Cylinders (except those charged with Carbon D i oxide) complying with Pa rt (e) 15, T i t l e 49, Code of Fe d e ral Regulations, may be hy d r o- statically tested eve ry 10 ye a r s. All Wheeled Extinguishers shall be hydrostatically tested at required intervals per NFPA 10 Standard for Po rt a ble Fire Extinguishers or more frequently when inspection or maintenance indicates a specific need. Such tests are usually required on ex t i n- guisher shells, cylinders, and some hose assembl i e s. R e fer to ANSUL Technical Bulletin No. 50 for additional details on requirements and the hydrostatic test manual (F-7602) for procedures. Stationary 150 and 350 Dry Chemical Extinguishers, because of their size, are not presently addressed by any NFPA Standard which requires a mandatory periodic hydrostatic interva l. However, ANSUL does recommend that, where practical, those unit s shells, cylinders, and hose assemblies also be hydrostatically tested at least every 12 years. For additional information on stationary extinguisher hydrostatic test requirements (for units over 150 pound nominal capacity), refer to ANSUL Technical Bulletin No. 42. RECORD KEEPING WARNING Air or gas should not be used for pressure testing as failure of a shell could be violent and dangerous. Each extinguisher shall have a tag or label securely attached that indicates the month and year the maintenance was performed and shall identify the person performing the service. The same record tag or label shall indicate if recharging was also p e r fo rm e d. At least monthly, the date the inspection wa s performed and the initials of the person performing the inspection shall be recorded. In addition to the required tag or label, a permanent file record should be kept for each extinguisher. The file record should also include the maintenance date and the name of the person or agency perfo rming the maintenance; the date when last recharged and the name of the person performing the hydrostatic test; and a description of dents remaining after passing a hydrostatic test. Parts of above were taken from NFPA Pamphlet 10.

5 ASSEMBLY To prepare the extinguisher for placement in service: 1. Remove all cord, wrappings, tags, and ties; examine extinguisher for concealed shipping damage. 2. Remove fill cap from tank and place funnel in fill opening. 3. Fill tank to rated capacity with only ANSUL dry chemical as specified on the nameplate. (Certain tanks are filled before shipment.) 4. Clean fill opening threads and gasket seating surface. 5. Make certain red indicator stem on fill cap is in the down position. (See Figure 1.) Then, replace fill cap and hand tighten firmly. 7. WARNING Do not place your body or head in front of cylinder valve outlet (or strike pull lever when connecting hose to quickopening valves). If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially around the face and head. Quick-Opening Valve Models Remove safety plug from cylinder valve outlet. (See Figure 3.) Retain plug for future use. 8. Attach high pressure hose to cylinder valve outlet and tighten snugly using a 1 1/8 in. open-end wrench. (See Figure 3.) FIGURE Remove safety shipping cap from nitrogen cylinder and make certain that pointer on pressure gauge is in the operating range. (See Figure 2.) Retain shipping cap for future use. See Parts Lists for proper replacement cylinders. FIGURE Replace any broken or missing visual inspection seals (Part No. 197) at cylinder valve. (See Figure 4.) FIGURE FIGURE

6 ASSEMBLY 10. Stationary Extinguishers Make certain GREEN vent valve is pinned in the closed position and BLACK dry chemical valve is pinned in the open position. (See Figure 5.) Replace any broken or missing visual inspection seals (Part No ). VENT VALVE CLOSED DRY CHEMICAL VALVE OPEN FIGURE Make certain nozzle is in holder with handle forward in the closed position. (See Figure 6.) FIGURE Record date of placement in service and instruct personnel in operation of the extinguisher.

7 OPERATION To operate the extinguisher: CAUTION For effe c t i ve discharge, wheeled extinguishers must be kept in the upright position during opera t i o n. 2. Pull off all hose and start back from fire at distance recommended on extinguisher nameplate. 3. Slowly open nozzle (fully) and direct stream at base of flames with a side-to-side sweeping motion. (See Figure 9.) 1. Standard Models Open cylinder valve by turning handwheel fully counterclockwise. (See Figure 7.) N OT I C E For additional info rmation on the proper use and extinguishment applications of ANSUL wheeled and stationary ex t i n g u i s h e r s, we offer hands-on fire fighting training at the ANSUL fire school. Visit www. a n s u l. c o m. FIGURE FIGURE Quick-Opening Valve Models Open cylinder valve by pulling operating lever or by turning handwheel fully counterclockwise. (See Figure 8.) FIGURE

8 RECHARGE To return the extinguisher to service after use: 1. Close the nitrogen cylinder valve as follows. Standard Valve Turn the handwheel fully clockwise and hand tighten. (See Figure 10.) c. Turn handwheel fully clockwise and hand tighten. (See Figure 13.) Quick-Opening Valve Complete Steps a, b, and c. FIGURE a. Turn handwheel counterclockwise to fully open position. (See Figure 11.) 2. CAUTION FIGURE When blowing down extinguisher, make sure nozzle is properly restrained from whipping, which could cause personal injury or property damage. Wheeled Extinguishers Invert extinguisher and open nozzle to clear dry chemical from hose line and to relieve all pressure from tank. (See Figure 14.) Leave the extinguisher inverted with the nozzle open for at least five minutes following the last audible release of gas. Then, return extinguisher to upright position. FIGURE b. Push operating lever toward valve body while rotating cross-shaft flat clockwise (when facing cross shaft from end with flat) to stop position. (See Figure 12.) FIGURE Stationary Extinguishers Close BLACK dry chemical valve and open GREEN vent valve. Open nozzle to clear dry chemical from hose line and to relieve all pressure from tank. (See Figure 15.) Leave nozzle open for at least five minutes following the last audible release of gas. FIGURE

9 RECHARGE 5. WARNING VENT VALVE OPEN Use of safety plug is vital to your safety. If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially around the face and head. Quick-Opening Valve Thread safety plug (Part No ) fully into cylinder valve outlet. (See Figure 17.) DRY CHEMICAL VALVE CLOSED FIGURE WARNING Do not place your body or head in front of cylinder valve outlet (or strike pull lever when disconnecting hose from quick-opening valves). If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially around the face and head. 6. WARNING FIGURE Disconnect high pressure hose from nitrogen cylinder valve outlet using 1 1/8 in. open-end wrench. (See Figure 16.) S a fety shipping cap must always be in place when removing or installing cylinders. Install safety shipping cap on nitrogen cylinder. 7. Open/remove cylinder clamp and remove empty nitrogen cylinder. 8. Disconnect dry chemical hose at adaptor and remove all remaining portions of ruptured visual hose inspection disc. (See Figure 18.) 9. Install adhesive side of new visual hose inspection disc onto clean seating surface of tank adaptor. Use disc Part No for 3/4 in. hose and Part no for 1 in. hose. (See Figure 18.) 10. Ensure hose coupling gasket is in place, reinstall dry chemical hose, and wrench tighten snugly. FIGURE FIGURE

10 RECHARGE 11. Remove fill cap from tank and place funnel in fill opening. 12. Fill tank to rated capacity with only ANSUL dry chemical as specified on the nameplate. 13. Clean fill opening threads and gasket seating surface. 14. Make certain red indicator stem on fill cap is in the down position. (See Figure 19.) Then, replace fill cap and hand tighten firmly. 17. Remove safety shipping cap from nitrogen cylinder. Retain shipping cap for future use. WARNING Do not place your body or head in front of cylinder valve outlet (or strike pull lever when connecting hose to quickopening valves). If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially around the face and head. FIGURE Read pressure gauge on replacement cylinder, note pressure, and check ambient temperature. (See Figure 20.) Refer to Temperature Correction Chart on Page 14. Replace cylinder if below minimum pressure. (See Parts Lists for proper replacement cylinders.) 18. Quick-Opening Valve Models Remove safety plug from cylinder valve outlet. (See Figure 21.) Retain plug for future use. 19. Attach high pressure hose to cylinder valve outlet using a 1 1/8 in. open-end wrench. Make certain hose is clear of wheels. (See Figure 21.) FIGURE Replace any broken or missing visual inspection seals (Part No. 197) at cylinder valve. (See Figure 22.) FIGURE Install fully charged nitrogen cylinder. (Adjust position of cylinder to allow for connection of high pressure hose to valve outlet.) Secure cylinder with retaining clamp and tighten wingnut(s). FIGURE

11 RECHARGE 21. Coil hose by completing the following steps. (Steps a through d represent D-Model extinguishers; the hose coiling direction is opposite for C-Models.) a. Form a counterclockwise loop over hose support. (See Figure 23.) d. Adjust coil so that nozzle is in the downward position as shown in Figure 26. (Hose coiled in this manner will pull off free of twists.) FIGURE b. Follow with a reverse loop so that hose passes behind loop as shown in Figure 24. FIGURE Place nozzle in holder with handle forward in the closed position. (See Figure 27.) FIGURE c. Repeat Steps a and b until all hose is coiled on support. (See Figure 25.) FIGURE Stationary Extinguishers Open BLACK dry chemical valve and close GREEN vent valve. (See Figure 28.) Insert ring pins and install visual inspection seals (Part No ). VENT VALVE CLOSED DRY CHEMICAL VALVE OPEN FIGURE FIGURE Record date of recharge and notify operating personnel that extinguisher is back in service.

12 INSPECTION Inspection frequency will vary from hourly to monthly, based on the needs of the situation, and should alw ays be conducted at regular intervals. If a questionable condition exists, refer to Service and Repair. It is advisable to become familiar with the Service and Repair section prior to performing inspection. To provide reasonable assurance that the extinguisher is fully charged and operable: 1. Make certain extinguisher is in its designated place. 2. Note general appearance of extinguisher and check for mechanical damage or corrosion. 3. D-Model Extinguishers Check that safety relief valve on tank head has not ruptured, corroded, or been tampered with. (See Figure 29.) FIGURE Check visual inspection seals at nitrogen cylinder valve. (See Figure 32.) Absence of a seal may indicate unreported operation of extinguisher. FIGURE Make certain that red indicator stem on fill cap is in the down position. (See Figure 30.) If stem is in the up position, a complete maintenance examination must be performed. 5. Check nameplate for readability. FIGURE Read nitrogen cylinder gauge, note pressure, check ambient temperature, and refer to Temperature Correction Chart on Page 14. (See Figure 31.) Replace cylinder if below minimum p r e s s u r e. (If cylinder replacement is required, refer to Recharge Section, Steps 4, 5, 6, 7, 15, 16, 17, 18, 19 and 20. See Parts List for proper replacement cylinder.) FIGURE Stationary Extinguishers Make certain GREEN vent valve is pinned in the closed position and BLACK dry chemical valve is pinned in the open position. (See Figure 33.) Replace any broken or missing visual inspection seals (Part No. 197).

13 INSPECTION VENT VALVE CLOSED DRY CHEMICAL VALVE OPEN FIGURE Wheeled Extinguishers Rotate wheels to test lubrication of bearings and ensure free movement. 10. Inspect nozzle opening for obstructions and operate handle to check for free movement. Return nozzle to holder with handle forward in the closed position. (See Figure 34.) FIGURE Record date of inspection.

14 MAINTENANCE To provide maximum assurance that the extinguisher will operate effe c t i v e ly and safe ly, maintenance must be conducted semi-annu a l ly (stationary) and annu a l ly (wheeled) or when specifically indicated by an inspection. If a questionable condition exists, refer to Service and Repair. It is advisable to become familiar with the Service and Repair section prior to performing maintenance. 1. Make certain extinguisher is in its designated place. 2. Note general appearance of extinguisher and check for mechanical damage or corrosion. 3. Check date of manufacture stamped on the tank or the date of last hydrostatic test on the label affixed to the extinguisher to make certain it does not exceed the required test interval. Refer to Ansul Technical Bulletin No D-Model Extinguishers Check that safety relief valve on tank head has not ruptured, corroded, or been tampered with. (See Figure 35.) (If the safety relief valve is Part No , Ansul recommends upgrading to Part No , especially if the extinguisher may be exposed to a hydrogen sulfide environment.) FIGURE If dry chemical residue is present, refer to Service and Repair on Page 16 for corrective action. If dry chemical residue is not present, continue to Step Test the regulator annually using regulator test kit (Part No ). For proper procedures, refer to manual (Part No ) supplied with the kit. A hose bl ow - d own kit (Pa rt No ) is ava i l a ble to check fo r bl o ckage in the hose line or pick-up tube. The hose bl ow - d ow n kit contains, and must be used with, the regulator test kit. 10. On models with low pressure nitrogen hose, reconnect nitrogen hose to tank inlet using pipe sealant on male threads. (See Figure 38.) FIGURE Check nameplate for readability, corrosion, or looseness. 6. Examine all nitrogen hoses for cuts, severe weather checking, abrasion or deformed exterior. Replace if necessary. 7. On models with low pressure nitrogen hose, disconnect nitrogen hose from tank inlet. (See Figure 36.) Check interior of hose coupling for dry chemical residue. FIGURE On models with regulator connected directly to tank inlet, reinstall regulator onto dry chemical tank inlet using pipe sealant on male threads. Reconnect high pressure nitrogen hose to regulator inlet. (See Figure 39.) FIGURE On models with regulator connected directly to tank inlet, remove high pressure nitrogen hose from regulator inlet and unscrew regulator from tank inlet. Check regulator outlet for dry chemical residue. (See Figure 37.) FIGURE

15 MAINTENANCE 11. Remove dry chemical hose and nozzle from support. 12. CAUTION Do not place your body or head in front of cylinder valve outlet (or strike pull lever when disconnecting hose from quick-opening valves). If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially around the face and head. Disconnect high pressure hose from nitrogen cylinder valve outlet using 1 1/8 in. open-end wrench. (See Figure 40.) 14. CAUTION FIGURE Safety shipping cap must always be in place when removing or installing cylinders. Install safety shipping cap (Part No ) on nitrogen cylinder. 15. Open/remove cylinder clamp and remove nitrogen cylinder. 16. Disconnect dry chemical hose at adaptor and check condition of visual hose inspection disc. (See Figure 42.) Replace disc if damaged or missing (Part No for 3/4 in. hose, Part No for 1 in. hose). A ruptured disc may indicate unreported operation of extinguisher. 13. CAUTION FIGURE Use of safety plug is vital to your safety. If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially around the face and head. Quick-Opening Valve Thread safety plug (Part No ) fully into cylinder valve outlet. (See Figure 41.) N OT I C E Hose must be hydrotested at same interval as the tank. R e fer to ANSUL Technical Bulletin No FIGURE Reinstall dry chemical hose and wrench tighten snugly. 18. Remove fill cap from dry chemical tank and check pressure relief vent (in cap) for obstructions. (See Figure 43.) FIGURE

16 MAINTENANCE 19. Move red indicator stem up and down to check for free movement. (See Figure 44.) If stem will not move freely, the mechanism may be damaged requiring repair or replacement of the fill cap. 24. Check nitrogen cylinder for date of manufacture or date of last hydrostatic test. Make sure it does not exceed retest interval. Refer to ANSUL Technical Bulletin No Read nitrogen cylinder gauge, note pressure, check ambient temperature, and refer to Temperature Correction Chart on Page 14. (See Figure 47.) Replace cylinder if below minimum p r e s s u r e. (If cylinder replacement is required, refer to Recharge Section, Steps 4, 5, 6, 7, 15, 16, 17, 18, 19 and 20. See Parts List for proper replacement cylinder.) FIGURE Inspect threads on fill cap and in fill opening for damage. Clean and coat fill cap threads lightly with a good grade of silicone grease. 21. Examine fill cap gasket for elasticity. Clean and coat gasket lightly with a good grade of silicone grease. 22. Make certain tank is filled with only free-flowing ANSUL dry chemical. An approximate visual indication of 3 to 6 in. (7-15 cm) from the bottom of fill opening is acceptable. (See Figure 45.) 3 6 IN. (7 15 cm) FIGURE Reinstall nitrogen cylinder. (Adjust position of cylinder to allow for connection of high pressure hose to valve outlet.) Clean and lubricate threads on clamp bolt(s). Secure cylinder with retaining clamp and tighten wingnut(s). 27. Remove safety shipping cap from nitrogen cylinder. Retain shipping cap for future use. WARNING FIGURE Make certain red indicator stem on fill cap is in the down position and flat gasket is in place. (See Figure 46.) Then, replace fill cap and hand tighten firmly. Do not place your body or head in front of cylinder valve outlet (or strike pull lever when connecting hose to quickopening valves). If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially around the face and head. 28. Quick-Opening Valve Models Remove safety plug from cylinder valve outlet. (See Figure 48.) Retain plug for future use. 29. Verify nitrogen cylinder gauge pressure by using ANSUL Test Gauge Assembly, Part No FIGURE

17 MAINTENANCE 30. Attach high pressure hose to cylinder valve outlet using a 1 1/8 in. open-end wrench. (See Figure 48.) FIGURE FIGURE Replace any broken or missing visual inspection seals (Part No. 197) at cylinder valve. (See Figure 49.) 35. S t a t i o n a ry Extinguishers Pull ring pin and opera t e GREEN vent valve to check for free movement. Then, return GREEN vent valve to closed position, insert ring pin, and install visual inspection seal (Part No ). (See Figure 51.) 36. S t a t i o n a ry Extinguishers Pull ring pin and opera t e BLACK dry chemical valve to check for free movement. Then, return BLACK dry chemical valve to open position, insert ring pin, and install visual inspection seal (Part No ). (See Figure 51.) VENT VALVE CLOSED FIGURE Inspect all hose for cuts, abrasions, and weather checking. Replace if necessary. 33. Replace hose on supports. If recoiling is required, refer to Recharge, Step Check nozzle for mechanical damage or obstructions and operate handle to check for free movement. Ensure that nozzle is the proper type specified for the extinguisher. Refer to parts list in back of this manual. Return nozzle to holder with handle forward in the closed position. (See Figure 50.) FIGURE Wheeled Extinguishers Spin wheels to test lubrication of bearings. If wheels do not rotate smoothly, pressure lubricate bearings through grease fittings on hubs. If equipped with pneumatic type tires, verify that tire pressure is 35 psi (241 kpa). 38. Record date of maintenance examination. DRY CHEMICAL VALVE OPEN

18 TEMPERATURE CORRECTION CHART For checking pressure of 23 cu ft (0.65 m3), 55 cu ft (1.6 m3), 110 cu ft (3.1 m3) and 220 cu ft (6.2 m3) ANSUL fire extinguishers use compressed nitrogen as the expellant gas. Nitrogen cylinders should be replaced if the pressure is less than F ( C). However, the pressure in the nitrogen cylinder va ries with changes in temperature. Accordingly, the chart below has been prepared to determine if the cylinder being checked contains enough nitrogen to furnish a recommended operating pressure. C Y L I N D E R P R E S S U R E ( k Pa ) l b / p s i ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( 7585 ) F ( 54 ) ( 40 ) ( 29 ) ( 18 ) ( 7 ) ( 4 ) ( 16 ) ( 27 ) ( 38 ) ( 49 ) ( C ) N I T ROGEN CYLINDER T E M P E R AT U R E Examples: 1. The nitrogen cylinder on an ANSUL wheeled extinguisher indicates a pressure of 1450 psi (9996 kpa) on the pressure gauge. The temperature at the cylinder is 40 F (4 C). Reference to the chart shows that this is above the temperature correction line and the cylinder does not require replacement. 2. The nitrogen cylinder on an ANSUL stationary extinguisher indicates a pressure of 1350 psi (9306 kpa) on the pressure gauge. The temperature at the cylinder is 80 F (27 C). Reference to the chart shows that this is below the temperature correction line. This cylinder should be replaced with a fully charged nitrogen cylinder.

19 SERVICE AND REPAIR The best assurance against fire extinguisher malfunction is proper operation, recharge, inspection, and maintenance. To remedy any disorder that may occur, as quickly as possible, refer to the following table which lists some of the possible irregularities that may develop and gives suggestions for corrective action. COMPONENT DISORDER CORRECTIVE ACTION Agent Tank Dents or Abrasions* Hydrostatically test and refinish (clean damaged area and repaint, using a primer and finish coat); or replace extinguisher. Rust spots, pits, and corrosion deposits* Paint peeling Fill opening threads nicked, crossthreaded, corroded, or worn Fill opening gasket seating surface nicked, gouged, corroded, or bearing dirt deposits Clean corroded areas with a wire brush, replacing extinguisher if there is any corrosion penetration; or repaint using a primer and finish coat. Remove loose paint with a wire brush and repaint using a primer and finish coat. Clean threads with a stiff bristle brush. If damaged or worn extensively, the extinguisher should be replaced. Clean seating surface with a mild abrasive and lubricate cleaned surface lightly with a good grade of silicone grease. If surface is sharply nicked or deeply gouged, replace extinguisher. Seam welds evidencing discoloration Replace extinguisher or consult Tyco Fire Suppression & Building or pin holes Products, Marinette, WI Fill Cap Abraded, cracked, corroded, or Replace, destroying affected cap to prevent reuse. otherwise damaged Obstructed pressure vent hole Threads corroded, nicked, crossthreaded, or worn Gasket cut, checked, deformed, stiff, brittle, or worn Indicator stem immovable or stiff operating Plastic indicator housing cracked or missing Clear vent hole with a stiff, unbreakable wire probe. Replace, destroying affected cap to prevent reuse. Replace, coating new gasket lightly with a good grade of silicone grease. Disassemble and clean, or replace. Replace plastic cap. Extinguishing Improper fill level Fill tank to rated capacity with only the ANSUL extinguishing Agent agent specified on the nameplate. Caked** dry chemical Discard agent and refill tank to rated capacity with only the ANSUL extinguishing agent specified on the nameplate. Gas Tube Bent, cracked, broken, or obstructed Remove all dry chemical from tank in accordance with ANSUL Technical Bulletin No. 51. Remove gas tube assembly from tank adaptor or elbow and discard damaged tube. Install replacement gas tube assembly and wrench tighten. (See corresponding parts list for assembly part number.) Check valve loose, leaking, damaged, or missing Remove all dry chemical from tank in accordance with ANSUL Technical Bulletin No. 51. Remove gas tube assembly from tank adaptor or elbow and discard damaged tube. Install replacement gas tube assembly and wrench tighten. (See corresponding parts list for assembly part number.) * Refer to Compressed Gas Association (CGA) Pamphlet C-6. ** The term caked applied to dry chemical describes a specific condition that is best identified as dry chemical containing hard lumps. These lumps will render a dry chemical extinguisher inoperative. The condition usually follows the absorption and later evaporation of an unusual amount of moisture. It is often confused with packing (a condition produced by normal settling, vibration, or impact). A simple procedure to determine which condition exists is the UL test in which lumps are dropped from 4 in. (10 cm) onto a clean hard surface. If the lumps do not break up into individual particles, caking is present. For additional details, refer to ANSUL Technical Bulletin No. 45 Caking Versus Packing of Dry Chemical Agents (Form No. F-8083).

20 SERVICE AND REPAIR COMPONENT DISORDER CORRECTIVE ACTION Gas Tube Residual dry chemical in nitrogen Remove all dry chemical from tank in accordance with ANSUL (Continued) hose coupling or regulator outlet Technical Bulletin No. 51. Remove gas tube assembly from tank to tank adaptor or elbow and discard damaged tube. Install replacement gas tube assembly and wrench tighten. (See corresponding parts list for assembly part number.) Dry Chemical Obstructed Refer to Hose Pick-Up Tube Blow-Down Procedure (Manual Pick-Up Tube Part No ) to clear tube. If tube will not blow clear, use plumber s drain auger to clear tube. Nameplate Unreadable wording Use a mild abrasive to clean plate. If readability cannot be improved, replace nameplate.** Loose Missing Remove nameplate and inspect area under plate. If corroded, see Agent Tank Rust Spots, Pits, and Corrosion Deposits and take appropriate corrective action. Then reaffix plate using a good grade of contact cement (Part No ). Replace with correct nameplate.** Nitrogen Rust spots, pits, and corrosion Clean corroded areas with a wire brush, replacing cylinder if Cylinder deposits* there is any corrosion penetration; or repaint using a primer and finish coat. Dents or abrasions* Paint peeling Safety shipping cap threads on cylinder collar nicked, crossthreaded, corroded, or worn Valve leakage suspected Depressurize, remove valve, and destroy both internal and external cylinder threads to render the vessel unusable. Remove loose paint with a wire brush and repaint using a primer and finish coat. Clean threads with a stiff bristle brush; small nicks, burrs, rough or feathered edges may be eliminated by filing. If severely damaged, worn, or corroded; the cylinder should be scrapped and replaced. Apply soap solution over valve opening, around valve-to-cylinder joint and all other joints including the valve stem. If soap solution bubbles at any point, depressurize cylinder and replace valve assembly. Valve handwheel or pull lever Depressurize cylinder and replace valve assembly; or consult corroded, damaged, or jammed Technical Services, Marinette, WI Gauge pointer immovable, loose, or missing Gauge crystal or bezel missing, deformed, or broken Wrong gauge Gauge dial unreadable, faded, or corroded Gauge is replaceable only on certain valve models. Refer to ANSUL Technical Bulletin No. 57 for requirements. Replace crystal and bezel assembly. Gauge is replaceable only on certain valve models. Refer to ANSUL Technical Bulletin No. 57 for requirements. Gauge is replaceable only on certain valve models. Refer to ANSUL Technical Bulletin No. 57 for requirements. Gauge pointer above or below Verify cylinder pressure with test gauge (Part No. 2737). acceptable operating range If valve gauge reading differs from test gauge reading, replace valve gauge by referring to ANSUL Technical Bulletin No. 57. * Refer to Compressed Gas Association (CGA) Pamphlet C-6. ** Replacement maintenance nameplates will not have UL manifest.

21 SERVICE AND REPAIR COMPONENT DISORDER CORRECTIVE ACTION Nitrogen Cylinder Retaining clamps loose or binding Clean and refinish; repair and refinish; or replace. (Continued) Retaining clamp webbing or pads Replace webbing or pads. worn or missing Pressure relief corroded or damaged Depressurize and replace safety relief assembly. Pressure Corroded, dented, or damaged Replace regulator. Regulator Regulator safety relief corroded, Replace safety relief assembly. plugged, dented, broken, or missing Agent Tank Corroded, damaged, broken, Replace safety relief assembly. Safety Relief ruptured, or plugged Hose (Expellant Exterior cut, cracked, abraded, Replace hose assembly. Gas and Agent) or deformed Swivel joint or ferrule corroded or cracked Coupling threads corroded, crossthreaded, or worn Coupling gaskets brittle, compression set, cut, or missing Replace hose assembly. Replace hose assembly. Replace, lubricating new gaskets with a good grade of silicone grease before insertion. Agent Hose Internal blockage Refer to Hose Pick-Up Tube Blow-Down Procedure (Manual No ) to clear tube. If tube will not blow clear, replace hose and visual hose inspection disc. Nozzle Wrong nozzle Replace with type referenced in parts list. Valve body or barrel abraded, corroded, cracked, or dented Operating handle broken or deformed Operating handle loose Replace valve body or barrel if in any way damaged or deformed. Replace operating handle. Tighten securement screw. Operating handle binding or Replace or repair valve. Consult Technical Services, immovable Marinette, WI Valve leaking Plugged tip or discharge passage Threads nicked, worn, or crossthreaded Gaskets or O-rings brittle, compression set, cracked, cut, or missing Replace or repair valve. Consult Technical Services Marinette, WI Disassemble and clean deposits from internal passages and parts with a stiff bristle brush; then reassemble. Replace thread-bearing component (barrel, valve body, or adaptor). Replace, lubricating gaskets or O-rings with a good grade of silicone grease before insertion.

22 SERVICE AND REPAIR COMPONENT DISORDER CORRECTIVE ACTION Control Valves Visual inspection seal broken or Replace seal. missing Ring pin bent, corroded, binding, or missing Valve handle bent, broken, or missing Valve immovable, stiff operating, or leaking Replace ring pin. Remove, repair, and reassemble; or replace. Disconnect, disassemble, and clean, replacing parts as required; or replace valve.

23 WARRANTY WA R R A N T Y, DISCLAIMER AND LIMITAT I O N The ANSUL components of your wheeled fire ex t i n g u i s h e r supplied by Tyco Fire Products LP, d/b/a Tyco Fire Suppression & Building Products ("TFS&BP"), are warranted to you as the original purchaser for purchaser's sole remedy for six (6) years from date of delivery against defects in workmanship and material. TFS&BP will replace or repair any TFS&BP-supplied component, which, in its opinion, is defective and has not been tampered with or subjected to misuse, abuse, or exposed to corrosive conditions provided the extinguisher has been installed and maintained in accordance with the maintenance manual and that written notice of the alleged defect shall have been given to TFS&BP within 30 days after discovery thereof and prior to the expiration of six (6) years after delivery, and further provided that if TFS&BP so instructs, such article or part thereof is promptly returned to TFS&BP with shipping charges prepaid. Purchased products, which are not manufactured but purchased by TFS&BP, are warranted against defects resulting from the manufacturer's fabrication, process or parts for one (1) year from the date of purchase. Evaluation of each reportedly defective product returned to TFS&BP will be made by the original manufacturer of an agent thereof and their judgment will be final. EXCEPT AS STATED IN THE WARRANTY ABOVE, TFS&BP MAKES NO OTHER WARRANTIES WHATSOEVER, WHETHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF M E R C H A N TABILITY AND FITNESS FOR PA RT I C U L A R PURPOSE. UNDER NO CIRCUMSTANCES SHALL TFS&BP BE LIABLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES. TFS&BP'S MAXIMUM LIABILITY AND CUSTOMER'S SOLE REMEDY FOR ANY DIRECT DAMAGES SHALL BE LIMITED TO THE PURCHASE PRICE PAID BY THE CUSTOMER FOR THE PARTICULAR PRODUCT. TFS&BP does not assume or authorize any person to assume for it any other liability in connection with the sale of this product. To obtain repairs, parts, and service of the ANSUL wheeled extinguisher, contact your local TFS&BP representative, or Tyco Fire Suppression & Building Products, Mari n e t t e, W i s c o n s i n , or

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25 TYCO FIRE SUPPRESSION & BUILDING PRODUCTS MARINETTE, WI Part No Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.