OWNERS SERVICE MANUAL NO. 05615
Contents
1. 1 2 Connect hose coupling to out let on the extinguisher Lay hose straight on ground to its full 50 ft length Start first regular loop counter clockwise by placing between side brackets and over 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 the top bracket Guide to Proper Installation of Hose on Wheeled or Stationary Fire Extinguishers 3 A The next loop is a regular hose Adjust the loops so that the in front loop Succeeding loops nozzle fits into the nozzle mount are alternated reverse front Loops should be approximately reverse etc for six full loops the same size lt 8 gt2. 8 Record the date the unit is being placed into service on the inspection tag and attach it to the extinguisher 9 Remove the caution not charged tag lt 2 gt INSTALLATION WARNING THE MODELS 630 amp 631 ALCOHOL RESISTANT FFFP FOAM FIRE EXTINGUISHER HAVE BEEN TESTED AND LISTED FOR CLASS A amp B FIRES ONLY DO NOT USE IT ON CLASS C FIRES INVOLVING ENERGIZED ELECTRICAL EQUIPMENT CLASS D FIRES OR ANY FLAMMABLES THAT WILL REACT WITH WATER WARNING THIS EXTINGUISHER MUST BE LOCATED IN AN AREA IN WHICH IT WILL BE PROTECTED FROM FREEZING THERE ARE NO KNOWN ANTI FREEZE ADDITIVES WHICH WILL PROTECT THIS UNIT FROM FREEZING WITHOUT ADVERSELY AFFECTING THE FOAM FIRE FIGHTING EFFECTIVENESS IN SOME CASES A PROPERLY SIZED BARREL HEATER MAY AFFORD AD EQUATE PROTECTION Do not place this extinguisher close to a potential fire hazard Amerex recommends location at a 50 foot minimum distance from the hazard with an unobstructed access Avoid placing it in an extremely hot or cold place The temperature range for this extinguisher is 35 to 120 F 2 to 49 C Keep the extinguisher clean and free from dirt ice chemicals and other contaminants which may interfere with its proper operation DO NOT FUNCTIONALLY TEST THIS FIRE EXTIN GUISHER Testing or any use may cause the extinguisher to gradually lose pressure and become ineffective OPERATION Note Persons expected to use this extinguisher should be trained in initiating its operat
3. OWNERS SERVICE MANUAL NO 05615 INSTALLATION OPERATING AND SERVICING INSTRUCTIONS for AMEREX MODEL 630 WHEELED MODEL 631 STATIONARY 33 GALLON FFFP ALCOHOL RESISTANT FOAM FIRE EXTINGUISHERS 23 CU FT NITROGEN CYLINDER OPERATED Model 630 36 in Wheels k RECHARGE FIRE EXTINGUISHERS IMMEDIATELY AFTER ANY USE xx 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 Corp 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 which are manufactured to exacting tolerances O rings hoses nozzles horns and all metal parts meet precise specifications and are subjected to multiple in house inspections and tests for acceptability Ther
4. 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 P N 01455 from the discharge hose assembly and install it securely onto the agent cylinder siphon tube outlet b Using a regulated nitrogen pressure source set to the extinguisher operating pressure slowly and briefly pressurize the agent cylinder the siphon tube should clear within a couple of seconds and the agent cylinder pressure slowly vent from the fill cap thread vent Pressure and or foam agent leaks from the gas tube inlet port where the hose connects will indicate a defective gas tube and will require that the agent cylinder be emptied and the gas tube replaced c Close the nitrogen pressure source and allow all pressure to slowly vent from the thread vent port on the fill cap d AFTER ALL PRESSURE HAS BEEN RELIEVED SLOWLY OPEN THE FILL CAP AND REMOVE THE TEST KIT VENT SPACER e Re examine the Foam agent to determine if any obstructions were cleared from the siphon tube and have risen to the liquid surface f Clean the fill cap and agent cylinder thread surfaces Install the fill cap gasket and securely install fill cap 13 Disconnect the high pressure hose from the nitrogen cylinder valve Securely install the serv
5. clean fresh water to a level just touching the bottom of the internal nitrogen tube Pour three 3 gals of clean fresh water into an Amerex 2 gallon Model 534 FFFP charge Note charge contains 2 gals of concentrate in a 5 gallon pail Carefully stir until you have a complete and homogeneous mixture Slowly pour the solution into the agent cylinder The liquid level in the extinguisher cylinder should now be 9 inches 23 cm from the top of the fill opening Clean lubricate and install or replace if necessary the fill cap gasket Install the fill cap and tighten securely Rock the extinguisher back and forth for two minutes to accomplish a more thorough agent mix WARNING DO NOT OVERFILL THE EXTINGUISHER THIS COULD CAUSE A MALFUNCTION OR PREMA TURE RUPTURE OF THE SAFETY DISC lt 6 gt Install an Amerex P N 3817 23 cu ft nitrogen cylinder pressurized to 2015 psi Remove the shipping cap tighten the wing nuts securely and attach the nitrogen hose Note Nitrogen cylinders with a T handle quick opening valve Remove small temporary ring safety pin and install a large ring pin Install a lockwire seal tamper indicator Nitrogen cylinders with a handwheel or lever actuated quick opening valve A leadwire seal must be installed Remove the remainder of the ruptured moisture seal from the agent cylinder fitting Replace with a new P N 07411 Moisture Seal Assembly Carefully follow the installation instructions
6. contained in the P N 07411 package including the installation of a new clear hose gasket in the female hose coupling Reattach the hose to the extinguisher tighten hand tight plus a 1 4 turn Properly coil the hose onto the storage rack Reattach the shutoff nozzle firmly to the hose and store it in the mount with the shutoff lever in the CLOSED forward position Record the service date on the inspection tag and place the extinguisher in its proper location TROUBLESHOOTING GUIDE WARNING BEFORE ATTEMPTING TO CORRECT ANY LEAKAGE PROBLEM BE SURE THAT THE AGENT CYLINDER IS COMPLETELY DEPRESSURIZED ALWAYS USE CAUTION WHEN OPENING THE SHUTOFF NOZZLE OR ANY OTHER CONNECTION AS A LEAKING NITROGEN VALVE SEAT MAY HAVE PRESSURIZED THE AGENT CONTAINER REFER TO THE PREVIOUS PAGE IN THE RECHARGE PROCEDURE FOR PROPER METHOD OF DEPRESSURIZATION PROBLEM Nitrogen cylinder gauge reads low or high Nitrogen pressure is too low Valve is closed Tamper seal is intact There is pressure in the agent and nitrogen cylinders Nitrogen pressure is too low Valve is closed Tamper seal is intact No pressure observed in the agent cylinder Shutoff nozzle lever does not move freely Unable to remove the agent cylinder cap Nitrogen hose cut cracked or abraided Chemical agent and pressure leaking from the safety disc assembly CORRECTIVE ACTION Temperature may have affected the pressure reading Temperature F 35 70 120 Temperatur
7. D RESULT IN SERIOUS INJURY AMEREX ASSUMES NO LIABILITY FOR SERVICE MAINTENANCE OR RECHARGE OF FIRE EXTINGUISHERS BY PUBLISHING THIS MANUAL INTRODUCTION The Amerex Model 630 33 gal Wheeled and Model 631 Stationary FFFP Foam fire extinguisher provides large volume Class A and Class B fire fighting capability The Model 630 can be transported and operated by one person and the Model 631 fits easily into a pick up truck The alcohol resistant Angus ALCOSEAL FFFP foam charge makes it particu larly effective on fires and spills involving hydrocarbons alcohols estors ketones and gasohols The nitrogen cylinder operated design features a unique stainless steel agent storage cylinder which requires no interior coating to prevent corrosion The agent cylinder is connected to a high pressure nitrogen cylinder through quick opening T handle type valve Field recharging is possible but to provide optimum extinguisher reliability recharging should be performed by persons trained in fire extinguisher maintenance and servicing This manual should be used as a guide for installing operating and servicing this extinguisher THE BEST PLACE TO HAVE YOUR EXTINGUISHER SERVICED AND RECHARGED IS YOUR AUTHORIZED AMEREX DISTRIBUTOR WHO HAS THE PROFESSIONAL EXPERIENCE AND EQUIPMENT TO DO IT PROPERLY PREPARING YOUR NEW EXTINGUISHER FOR USE WARNING THIS FIRE EXTINGUISHER IS SHIPPED FROM THE FACTORY EMPTY AFTER INITIAL PREPARATIONS CAREFU
8. LLY FOLLOW THE RECHARGING INSTRUCTIONS BEFORE PLACING IT INTO SERVICE 1 Remove all wrappings straps and pallet retaining bolts 2 Examine the extinguisher for shipping damage Check to make sure that you have received the Model 534 2 gal FFFP foam concentrate charge which is packaged with the extinguisher 3 Fill the extinguisher by carefully following the RECHARGE instructions Page 6 4 Remove the nitrogen cylinder protective shipping cap Save the cap as it must be installed whenever a charged nitrogen cylinder is transported Remove temporary shipping ring pin and install large ring pin 5 Install new lockwire seal Check the nitrogen cylinder pressure The gauge should read approximately 2015 psig 13 9 mPa at 70 F 21 C 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 cylinder Make sure that the hose and nozzle are unobstructed and that the P N 7411 Moisture Seal is undamaged and properly seated on the agent cylinder discharge fitting Reconnect the discharge hose to the agent cylinder and with the nozzle in the closed forward position place it on the storage rack See Page 8
9. e C 2 21 49 Recommended Pressure psig 1880 2015 2200 mPa 13 0 13 9 15 2 Minimum Pressure psig 1590 1700 1900 mPa 11 0 11 7 13 1 No corrective action is required if the pressure is within parameters stated above Valve seat has leaked and has pressurized the agent cylinder Follow RECHARGE PROCEDURE for restoring the extinguisher to service Leakage in the nitrogen valve at other than the valve seat Replace with a properly charged nitrogen cylinder Disassemble clean and lubricate Agent cylinder may be pressurized Make no further attempt to remove the cap until this is checked See the RECHARGE PROCEDURE for proper depressur ization method Replace hose assembly with Amerex P N 2234 Inspect safety outlet for tightness or damage Tighten if necessary Note Only tighten the large hex nut of the assembly The small round nut containing the holes is factory set to a specific torque value Do not attempt to adjust If damaged or ruptured replace complete Amerex P N 3787 safety disc assembly lt 7 gt PARTS LIST ITEM PART STD for NO NO DESCRIPTION PKG 6993 Cap Forged Brass Agent Cylinder 1 33 GAL WHEELED STATIONARY Cap Forged Brass Agent Cylinder with FFFP ALCHOHOL RESISTANT FOAM Pressure Indicator Extinguishers 2272 Gasket Fill Cap 3 3787 Safety Disc Ass y 630 7665 Safety Disc Ass y 631 4 2234 Pressurizing Hose Ass y 5 3958 Bumper Rubber 12 1387 Lock Wi
10. e are substitute parts available which are incorrectly labeled as U L component parts some are advertised as Amerex type None of these meet U L requirements and all of them void the Amerex extinguisher warranty and U L listing DO NOT SUBSTITUTE REFERENCES IN THIS MANUAL AVAILABLE FROM NFPA 10 PORTABLE FIRE EXTINGUISHERS National Fire Protection Assoc Inc Batterymarch Park Quincy MA 02269 CGA C 1 METHODS FOR HYDROSTATIC Compressed Gas Association Inc TESTING OF COMPRESSED GAS CYLINDERS 1235 Jefferson Davis Highway Suite 501 CGA C 6 STANDARD FOR VISUAL INSPECTION OF Arlington VA 22202 COMPRESSED GAS CYLINDERS AMEREX CORP P O BOX 81 TRUSSVILLE ALABAMA 35173 0081 PHONE 205 655 3271 FAX 205 655 5112 E MAIL sales amerex fire com INTERNET HOME PAGE http Wwww amerex fire com Printed in U S A MM05615Rev C 1 98T 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 NOINSTRUCTION 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 COUL
11. e nitrogen cylinder If the pressure is below 1700 psig 11 7 mPa repressurize the cylinder to 2015 psig 13 9 mPa or replace it A low gauge pressure may indicate leakage Check for leaks A low gauge reading may also result from low temperature See the temperature pressure relationship chart in the Troubleshooting Guide Check the tamper indicator lockwire seal on the nitrogen valve and replace if necessary lt 4 gt 6 Wheeled extinguishers Model 630 Inspect the wheels to insure they rotate freely Lubricate as required Stationary extinguishers Model 631 check to insure that any mounting fixtures are secure WARNING ALWAYS OPEN THE SHUTOFF NOZZLE HANDLE SLOWLY ANY PRESSURE IN THE AGENT CYLINDER WILL CAUSE THE EXTINGUISHER TO DISCHARGE BE PREPARED FOR A POS SIBLE DISCHARGE AND NOZZLE RECOIL ANY EVIDENCE OF AGENT IN THE NOZZLE INDI CATES THAT THE UNIT MAY HAVE BEEN USED AND THE USE NOT REPORTED TA Disconnect the discharge hose from the agent cylinder Check the couplings hose and hose gaskets for damage or deterioration replace as necessary 8 To perform an operational integrity check on the discharge hose and nozzle combination a Connect the test kit hose adapter to the female end of the discharge hose b Close the discharge nozzle shut off lever and properly secure it c Connect a properly regulated and verified nitrogen pressure source set to the extinguisher operating pres sure 235 245 psi to the tes
12. ice kit NITROGEN CYLINDER PRESSURE CHECK GAUGE ASSEMBLY P N 01300 to the nitrogen cylinder valve outlet and verify the indicated cylinder gauge pressure Nitrogen pressure should conform to the temperature correction chart provided in the TROUBLE SHOOTING section of this manual Close the nitrogen cylinder valve and disconnect the Pressure Check Gauge Assembly lt 5 gt WARNING IF THE NITROGEN CYLINDER VALVE HAS A T HANDLE QUICK OPENING OR A HANDWHEEL QUICK OPENING TRIP RELEASE THE SAFETY VENT PLUG SHIPPED WITH THE EXTINGUISHER OR THE TEST KIT SAFETY VENT PLUG P N 01560 MUST BE INSTALLED TO PROTECT SER VICE PERSONNEL FROM AHIGH VELOCITY DISCHARGE IN CASE THE LEVER IS ACCIDENTALLY OPENED Install a new Amerex P N 07411 Moisture seal per instructions in the package Securely connect the dis charge hose to the extinguisher When assembling the hose to the agent cylinder or nozzle to the hose tighten the coupling 1 4 turn after contacting the hose gasket Coil the hose on to the extinguisher hose rack using the REVERSE LOOP PROCEDURE see Page 8 Install nozzle with the lever inthe CLOSED forward position into the nozzle mount Remove the safety vent plug from the nitrogen cylinder Re connect 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 locati
13. ion and in the proper fire fighting technique Familiarize all personnel with this information before an emergency occurs Move the extinguisher to within approximately 50 feet of the fire site and REMOVE RING SAFETY PIN Pull T handle to OPEN NITROGEN VALVE This will pressurize the extinguisher Remove nozzle from the mount and with the nozzle lever in the CLOSED position PULL HOSE FROM RACK START BACK 30 FEET from the fire AIM AT BASE OF FIRE nearest you Hold hose and nozzle firmly to allow for discharge recoil OPEN HOSE NOZZLE by pulling the handle fully towards you SWEEP SIDE TO SIDE across the base of the fire and past both edges Progressively follow up until the fire is extinguished Note Do not cover the nozzle aspirating holes when discharging this extinguisher DISCHARGE TIME APPROXIMATE 60 SECONDS EFFECTIVE RANGE OF THE AGENT THROW IS 35 40 FEET HOSE LENGTH 50 FEET SHUTDOWN 1 After making sure that the fire has been completely extinguished expel all remaining extinguishing agent and pressure then push the nozzle lever forward to the CLOSED position 2 Close the nitrogen valve PUSH T HANDLE TO CLOSED POSITION 3 Slowly open the nozzle lever again to insure that the extinguisher and hose have been completely cleared of agent and pressure 4 Coil the extinguisher hose onto the storage rack and position the nozzle onto the mount in preparation for transport to the recharge locati
14. ntenance functions can be performed Getz part numbers are referenced MAINTENANCE SERVICE PROCEDURE WARNING BEFORE SERVICING BE SURE THE EXTINGUISHER AGENT CYLINDER IS NOT PRESSURIZED Note This procedure will be best accomplished with the extinguisher in an upright position and on a level surface 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 cylinders for corrosion abrasion dents or weld damage If damage is found hydrostatically test in accordance with instructions in CGA Pamphlet C 1 and C 6 and NFPA Pamphlet 10 2 Inspect the extinguisher for damaged missing or substitute parts A careful inspection should be made of the safety relief to make sure that it has not ruptured corroded or been tampered with Only factory replacement parts are approved for use on Amerex fire extinguishers 3 Check the date of manufacture on the extinguisher nameplate or on the agent cylinder dome The agent cylinder the discharge hose assembly and nitrogen supply hose must be hydrostatically tested every 5 years Test pressure agent cylinder 450 psi 3103 kPa hose assembly 300 psi 2068 kPa nitrogen supply hose 3 000 psi 20 628 kPa 4 Check the hydrostatic test date on the crown of the nitrogen cylinder The nitrogen cylinder must be retested in accordance with D O T regulations every 5 years 5 Check the gauge on th
15. on RECHARGE RECHARGING NFPA 10 4 2 3 is the replacement of the extinguishing agent and also includes the expellant for this type of extinguisher RECHARGE PROCEDURE CAUTION THE FIRE EXTINGUISHING AGENT IN THIS EXTINGUISHER MUST BE COMPLETELY REPLACED EVERY THREE YEARS WARNING BEFORE ATTEMPTING TO RECHARGE BE SURE THIS EXTINGUISHER IS COMPLETELY DEPRESSURIZED THERE IS A CHECK VALVE IN THE SYSTEM WHICH PREVENTS NITROGEN PRESSURE FROM ESCAPING FROM THE AGENT CYLINDER WHEN THE NITROGEN HOSE IS DISCONNECTED THE AGENT CYLINDER MAY BE PRESSURIZED EVEN THOUGH NO PRES SURE ESCAPES FROM THE CYLINDER NITROGEN CONNECTION To depressurize a Close the nitrogen valve b Open the nozzle lever slowly to discharge all remaining agent and pressure be prepared for a nozzle recoil c Insure that all pressure has escaped before further disassembly Carefully remove the fill cap Thoroughly rinse the complete interior of the agent cylinder with clean water Dump or siphon all liquid from the cylinder Detach discharge hose from the agent cylinder and the nozzle assembly from the hose Remove the ruptured moisture seal from the female hose coupling and flush the hose and nozzle assemblies with clean water Perform MAINTENANCE SERVICE PROCEDURES 1 thru 6 Detach the hose from the nitrogen cylinder install the shipping cap unscrew the wing nuts and remove the nitrogen cylinder from the extinguisher Fill the agent cylinder with 28 gallons of
16. on p g 2 CAUTION DO NOT TRANSPORT A NITROGEN CYLINDER WITH ANY REMAINING PRESSURE WITHOUT INSTALLING THE PROTECTIVE SHIPPING CAP xkk RECHARGE IMMEDIATELY AFTER ANY USE INSPECTING THE EXTINGUISHER This extinguisher should be INSPECTED at regular intervals monthly or more often if circumstances dictate to insure that it is ready for use INSPECTION is a quick check that an extinguisher is available and will operate It is intended to give reasonable assurance that the extinguisher is fully charged and operable This is done by seeing that it is in its designated place that it has not been actuated or tampered with and that there is no obvious physical damage or condition to prevent operation THE FFFP FOAM CHARGE IN THIS EXTINGUISHER MUST BE REPLACED EVERY THREE YEARS USE ONLY THE AMEREX MODEL 534 CHARGE SEE THE RECHARGE SECTION OF THIS MANUAL FOR THE APPROPRIATE EMPTYING AND RECHARGING INSTRUCTIONS MAINTENANCE At least once a year or more frequently if indicated by an inspection MAINTENANCE should be performed MAINTE NANCE 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 Note The Getz Mfg P N 52576 Universal Wheeled Extinguisher Service Kit is available so that NFPA 10 required mai
17. re Seal Yellow for T Handle Valve 500 Lead Wire Seal for Handwheel Nitrogen Valve 12 2233 Nitrogen Valve Handwheel with Gauge 2467 Nitrogen Valve T Handle Quick Release with Gauge 6373 Valve Lever T Handle with Roll Pin and 23 CU FT Nitrogen Cylinder WHEELED MODEL 630 STATIONARY MODEL 631 Knobs 7C 10213 Gauge 3000 PSI 7D 9897 Valve Stem Ass y 6 7E 12466 Spring 6 8 3817 Nitrogen Cylinder 23 cu ft Charged Including Valve Gauge and Protective Cap 9 4072 Retaining Strap Nitrogen Cylinder 1970 Bolt Washer and Wing Nut 7498 Nameplate Mylar Label Non U L 630 7724 Nameplate Mylar Label Non U L 631 11A 7479 Pictogram 630 631 2 7026 Wheel Ass y 36 X 6 Red 7607 Wheel Ass y 36 X 6 with Rubber Tread 7389 Hub Cap Metal with Washer and Cotter Pin 6814 Hose Ass y 1 x 50 Ft 7411 Moisture Seal Includes Disc amp Clear Vinyl Gasket 3877 Gasket Hose Nozzle 6 6 6279 Ball Valve Ass y 6749 Nozzle Tip Aerated a 20 17A 7240 Orifice Restrictor Disc Insert for Nozzle Tip 8 7560 Nozzle Ass y Ball Valve amp Tip 19 scaQ 1 21 9 4892 Hydrotest Adapter Cylinder 20 9857 Hose Hydrotest Adapter Female 21 5723 Hose Hydrotest Adapter Male Plug amp PART NOT PICTURED 7B 7A Qy 17 i7 7C 7E
18. t kit hose adapter d Slowly pressurize the discharge hose nozzle assembly to the extinguisher operating pressure and check for leaks or distortion e Operate the nozzle lever to ensure proper operation and to clear the hose of any obstructions if hose is obstructed refer to TROUBLE SHOOTING section of this manual Make sure that the nozzle aspirating holes and screen are clear and unobstructed clean if necessary f Close the nitrogen pressure source and slowly relieve remaining pressure by fully opening the nozzle lever 9 Remove the agent cylinder cap and examine it closely for any signs of damage cracks or thread wear Clean the agent cylinder fill cap threads and thread vent port on the cap with a stiff bristle nylon brush Remove the fill cap gasket and check for wear cracks or tears replace if necessary Lightly lubricate the gasket with Visilox and reinstall 10 Check the condition of the chemical solution The level of the solution should be 9 inches 23 cm below the top of the fill opening Recharge if contaminated the solution level is down or if the charge is over three years old See RECHARGE instructions and procedures 11 Place the service kit VENT SPACER P N 01530 on top of the agent cylinder fill opening collar Check again to see that the fill cap thread vent is clean and that the agent fill cap gasket is in place Install the agent fill cap securely over the vent spacer CAUTION STEP 12 THE AGENT CYLINDER CAP
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