Graco 332198C User's Manual
Contents
1. 00 e ee 11 Maintenance 000 0c cece eee eee eee 11 Routine Cleaning 200e0 eeu 11 Troubleshooting 202 eee eee e eee eee 12 Parts ec oe beat eee ae ae fay E s 13 AccessorieS 0c eee eee eee eens 14 Typical Restrictor Pressure Drop 15 Technical Data 000 0c eee ee eee eee 15 Graco Standard Warranty 00 16 Related Manuals The following manuals are available at www graco com Part Description 3A1602 E 8p Proportioner Operation and Repair 2 332198C Warnings Warnings The following warnings are for the setup use grounding maintenance and repair of this equipment The exclama tion point symbol alerts you to a general warning and the hazard symbols refer to procedure specific risks When these symbols appear in the body of this manual or on warning labels refer back to these Warnings Product specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable 5 TOXIC FLUID OR FUMES HAZARD AA Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin inhaled or swallowed e Read MSDSs to know the specific hazards of the fluids you are using e Store hazardous fluid in approved containers and dispose of it according to applicable guidelines e Always wear chemically impermeable gloves when spraying dispensing or cleaning equipme2. e Keep work area free of debris including solvent rags and gasoline e Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present e Ground all equipment in the work area See Grounding instructions e Use only grounded hoses e Hold gun firmly to side of grounded pail when triggering into pail Do not use pail liners unless they are antistatic or conductive e Stop operation immediately if static sparking occurs or you feel a shock Do not use equipment until you identify and correct the problem e Keep a working fire extinguisher in the work area 332198C 3 Warnings Diss EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury e Do not operate the unit when fatigued or under the influence of drugs or alcohol e Do not exceed the maximum working pressure or temperature rating of the lowest rated system component See Technical Data in all equipment manuals e Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturer s warnings For complete information about your material request MSDS from distributor or retailer e Do not leave the work area while equipment is energized or under pressure e Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use e Check equipment daily Repair or replace worn or damaged parts im
3. or the hose end coupling to relieve pressure gradually then loosen completely Clear hose or nozzle obstruction c Use lever H to open dispense valve inlet ball valves J 10 Daily Shutdown NOTE For brief shutdowns leave the cured mixer in place until it is time to use a fresh mixer EET When you finish using the 2K Manual Dispense Valve clean the outlet manifold F and protect it from drying or crystallization as follows 1 Perform Pressure Relief Procedure page 10 2 Remove and properly dispose of the static mixer 3 Dispense one shot of material into a waste con tainer to clear any crossover in the outlet manifold F 4 Wipe the nose with a clean rag being careful not to let the materials contact each other 5 Install PTFE night capt 19 and retaining nut G Flushing PEEN Flush the valve regularly to remove material build up a 1 Perform Pressure Relief Procedure page 10 2 Remove static mixer 3 To maintain ground continuity press and hold a metal part of the dispense valve against the side of a grounded metal pail then pump solvent through the gun into the grounded metal pail until clean sol vent is dispensed Use the lowest pressure possible while dispensing solvent 332198C Install Restrictors or Plugs 9 Zi A A 2 A Two 0 024 in restrictors are installed with the gun An extra 0 032 in restrictor is included with th
4. Technical Data Typical Restrictor Pressure Drop 2500 Key 17 5 175 T 5000 cps 1 0 gpm 3 8 Ipm F 2000 BA p gpm pm amp 14 0 140 fj 5000 cps 0 25 gpm 0 95 Ipm 1 0 25 0 95 A 1500 1000 cps 0 25 gpm pm g 10 5 105 C 500 cps 0 25 gpm 0 95 Ipm S X 200 cps 0 25 gpm 0 95 Ipm Oo 1000 g 7 0 70 H 200 cps 0 10 gpm 0 38 Ipm a 500 249036 3 5 35 O ring CC 0 094 0 062 0 040 0 032 0 024 0 018 15E377 15E376 15E375 15E374 15E373 15E372 Restrictor Diameter and Part No Restrictors use 40 mesh screens and o rings Order 249037 Screens Restrictor 249037 package of 10 and 249036 O rings package of 6 Fitting AA Screen BB TI5627a TI5628a FIG 2 Technical Data Maximum Fluid Working Pressure 2000 psi 14 MPa 137 bar Wetted Parts 6 0 eee eee eee eee eee Carbon steel stainless steel aluminum chemically resis tant o rings PTFE PEEK 332198C 15 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use With the exception of any special extended or limited warranty published by Graco Graco will for a period of twelve months from the date of sale repair or replace any part of the equipment determined by Graco to be defective This warranty applies only when
5. not shut off when ball valve lever is closed Worn ball valve seat of ball Replace ball valve See assembly specifications in illustration on page 13 12 332198C NOTE Apply thread sealant on all tapered thread fittings A When installing a new ball valve 8 remove the acorn nuts and handle from the ball valves 8 Keep the acorn nuts discard the handle A Install and tighten ball valves 8 so that the studs are pointing away from each other The flats line up squarely with the flat of the inlet manifold 1 and the pressure laser marking are on the handle 2 side of the inlet manifold 1 A Orient lever 9 and adjust balls in valves 8 so they are closed when lever is pulled back Carefully install the lever onto the ball valve 8 studs making sure the stud flats line up with the slots in the lever A Install acorn nuts from ball valves 8 on top of the lever 9 Torque to 40 50 in lIb 4 5 5 6 Nem Ref Part Description Qty 24R986 MANIFOLD inlet 16U410 HANDLE manual 2K gun 16F422 GRIP handle 390st 119984 FITTING union 1 8 npt x 5 16 tube 15G421 TUBE 5 16 extension assembly 24K994 MANIFOLD outlet 512292 NUT mixer 214037 VALVE ball 1 4 5000 psi with lever 9 217562 LEVER valve 10 100721 PLUG pipe 12 113093 CONNECTOR pipe 13 117506 FITTING swivel 1 4 npt x 6 JIC 14 117595 FITTING swivel 1 4 npt x 5 JIC ONOoaRWNDN 15 512289 MIXER 1 2 30 spray 1 33
6. the equipment is installed operated and maintained in accordance with Graco s written recommendations This warranty does not cover and Graco shall not be liable for general wear and tear or any malfunction damage or wear caused by faulty installation misapplication abrasion corrosion inadequate or improper maintenance negligence accident tampering or substitution of non Graco component parts Nor shall Graco be liable for malfunction damage or wear caused by the incompatibility of Graco equipment with structures accessories equipment or materials not supplied by Graco or the improper design manufacture installation operation or maintenance of structures accessories equipment or materials not supplied by Graco This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICU
7. 2198C Parts A Apply red thread locking liquid to the threads of the handle 2 Ay Make sure that 6 JIC adapter 13 is on the right and 5 JIC adapter 14 is on the left of the inlet manifold 1 when viewed from the rear of the gun Ay Squarely align outlet manifold 6 to inlet manifold 1 Ady Apply lithium grease A Torque restrictors 18 to 40 50 in Ib 4 5 5 6 Nem Ad Hand tighten mixer nut 7 onto outlet manifold 6 Ref Part Description Qty 16 111516 PACKING o ring 2 17 249036 PACKING o ring not shown 1 includes qty 6 of item 16 18 15E373 RESTRICTOR 0 024 in 19 15K652 CAP night 27 563199 VALVE check 1 8 npt rev 5000 28 15E amp 378 FILTER screen 40 mesh 29 118665 GREASE Fusion 30 117661 VISE drill pit pin 31 BIT 0 024 in cleanout drill 32 15E374 RESTRICTOR 0 032 in WO PO Not for sale Items are shipped loose 13 Accessories Accessories Restrictors 15E372 0 018 in Orifice Restrictor 15E373 0 024 in Orifice Restrictor 15E374 0 032 in Orifice Restrictor 15E375 0 040 in Orifice Restrictor 15E376 0 062 in Orifice Restrictor 15E377 0 094 in Orifice Restrictor 249765 Restrictor Kit Includes one each of restrictor sizes 0 018 0 024 0 032 0 040 0 062 and 0 094 in one plug with no restriction package of 10 screens and package of 6 o rings 15E370 Plug Fits restrictor port but with minimal restriction Uses 249036 O r
8. If pressures are more than 25 apart continue to next step If not pressures are sufficiently balanced 4 If pressures are more than 25 apart replace one or both plugs or restrictors with a different restrictor size NOTE An extra 0 032 in restrictor is included with the gun If necessary use this restrictor to balance the pres sures Put the larger orifice on the side with the higher viscosity material a Perform Pressure Relief Procedure on page 10 b Select the new restrictors required to achieve desired back pressure and balance See pres sure drop chart in FIG 2 on page 15 NOTE The valve should be able to achieve the desired flow rate at a pressure of 200 1500 psi 1 4 10 MPa 14 103 bar A ISO and B RES pressures should bal ance within 25 of each other c Install Restrictors or Plugs see page 11 d Repeat this procedure to verify pressures are balanced 332198C Ratio Checking NOTE Use ratio check nozzle 255247 with retaining nut 512292 Purchase separately The output mix ratio of your proportioner can be checked by dispensing the two fluids separately out of the nosepiece into tared cups The cups can then be weighed and the weights divided to get the mix ratio by weight Ratio checks provide information about the ratio of an overall sample Transient problems soft spots caused by starting and stopping the flow lead lag may not show up in this kind of ratio check Physical tests of
9. Instructions Parts G GRACO 2K Manual Dispense Valve 332198C EN For use with two component proportioners to mix and dispense beads of non abrasive material For professional use only Not approved for use in European explosive atmosphere locations Model 24R021 2000 psi 14 MPa 137 bar Maximum Fluid Working Pressure Important Safety Instructions Read all warnings and instructions in this manual and the system manual Save all instructions ti20167a CE PROVEN QUALITY LEADING TECHNOLOGY Related Manuals Contents Related Manuals 00 20es seen eens 2 Warnings seara osc oni th wakes 3 Important Isocyanate ISO Information 5 Isocyanate Conditions 04 5 Material Self ignition 5 Keep Components A ISO and B RES Separate 5 Moisture Sensitivity of Isocyanates 5 Foam Resins with 245 fa Blowing Agents 5 Changing Materials 000 6 Installation 2 0 0 cece eee eee 7 Operation oasen eee eee ee ate eee 8 Primer es sc te eh dhe ae eel en ae A te 8 Pressure Balance the Gun 8 Ratio Checking 00 cece eee eee 9 Install Disposable Static Mixer 9 DISPENSE acco ea Shera eee Pee Ges 9 Pressure Relief Procedure 10 Daily Shutdown 00000 eee ee 10 FIUSHING sce A Aces ets Reet ie 10 Install Restrictors or Plugs 11 Volume Balancing
10. LAR PURPOSE Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any action for breach of warranty must be brought within two 2 years of the date of sale GRACO MAKES NO WARRANTY AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES EQUIPMENT MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO These items sold but not manufactured by Graco such as electric motors switches hose etc are subject to the warranty if any of their manufacturer Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equipment hereunder or the furnishing performance or use of any products or other goods sold hereto whether due to a breach of contract breach of warranty the negligence of Graco or otherwise FOR GRACO CANADA CUSTOMERS The Parties acknowledge that they have required that the present document as well as all documents notices and legal proceedings entered into given or instituted pursuant hereto or relating d
11. ally plugged Clean pump intake valve Air in hose Fluid is compressible Purge air from hose Unequal size hoses Use matching hoses Pressures are not balanced when running but pressure is generated and holds on both strokes Feathering the valve lever to decrease the flow rate through the gun When opening or closing the valve always move the lever all the way Do not try to control the flow rate by partially opening the lever Unequal viscosities Check that A ISO and B RES chemicals are within the chemical manufacturer s specified applica tion temperature range Change restrictor at mix point to balance back pressure Restriction on one side Clean mix module restrictors or check valves at mix manifold A ISO side rich lack of B RES side A ISO side gauge is low B RES side restriction down stream of gauge Check gun check valve spring mix module or mix manifold restrictor screen B RES side gauge is low B RES side material supply prob lem Check B RES side inlet strainer and pump intake valve B RES side rich lack of A ISO side A ISO side gauge is low A ISO side material supply prob lem Check A ISO side inlet strainer and pump intake valve B RES side gauge is low A ISO side restriction downstream of gauge Check gun check valve spring mix module or mix manifold restrictor screen Flow will
12. e gun If nec essary use this restrictor to balance the pressures Optional restrictors in various sizes are also available Restrictors create back pressure and make up for vis cosity differences between A ISO and B RES See pressure drop chart in FIG 2 on page 15 and see the Volume Balancing section See 249765 Restrictor Kit on page 14 1 Perform Pressure Relief Procedure page 10 2 Remove restrictors E 3 If using one or more restrictors assemble o rings CC and screens BB onto restrictors AA See FIG 2 on page 15 4 If using one or more plugs see Accessories on page 14 assemble o rings CC onto plugs 5 Screw assembled restrictors or plugs into outlet manifold F Restrictors and plugs can be damaged if they are overtightened Torque to 40 50 in Ib 4 5 5 6 Nem Volume Balancing Ratio errors can occur between the proportioner and the manifold even if the proportioner output ratio is very accurate Different restrictor sizes are available to correct imbal ances See FIG 2 on page 15 for available sizes Check Valve Imbalance If resin and hardener are at or near 1 1 ratio when one check valve opens the resulting surge closes the other This check valve oscillation causes ratio imbalance Install restrictors on both sides to meter a smooth flow to the manifold 332198C Maintenance Sizing Restrictors If resin and hardener are at or near 1 1 ratio and
13. g dispensing for longer than the cure time of the materials a Use lever H to close dispense valve inlet ball valves J as desired to dispense materials b Keep static mixer installed c When ready to dispense again Install Dispos able Static Mixer page 9 7 When done using the dispense valve for the day perform Daily Shutdown on page 10 Operation Pressure Relief Procedure Follow the Pressure Relief Procedure whenever you see this symbol t g A OeAZAL This equipment stays pressurized until pressure is manually relieved To help prevent serious injury from pressurized fluid such as skin injection splashing fluid and moving parts follow the Pressure Relief Procedure when you stop spraying and before cleaning checking or servicing the equipment This procedure describes how to relieve pressure from the dispense valve See the supply system manual for instructions on relieving pressure from the entire sys tem 1 Shut off material supply pumps 2 With the valve pointed into a grounded metal pail use the lever H to open the inlet ball valves J and relieve the fluid pressure Aoga 3 If the valve nozzle or fluid hose is clogged or if pres sure has not been fully relieved after following the steps above a Use lever H to close dispense valve inlet ball valves J b VERY SLOWLY loosen the static mixer nut G from the outlet manifold F
14. ging between epoxies and urethanes or polyureas disassemble and clean all fluid com ponents and change hoses Epoxies often have amines on the B hardener side Polyureas often have amines on the B resin side 6 332198C Installation an 2 IN 1 Relieve all system pressure before installing the dis pense valve Buc GROUNDING The equipment must be grounded to reduce the risk of static sparking Static sparking can cause fumes to ignite or explode Grounding provides an escape wire for the electric current 2 Ground the gun through connection to a properly grounded fluid hose and pump See your system manual for further information ti20166a Key A A lso Hose B B Resin Hose C OFF Closed Position DON Open Position E Restrictor or Plug F Outlet Manifold G Static Mixer Nut Static Mixer Not Shown H Lever J Inlet Ball Valves K Handle L Manifold M Check Valves Fic 1 Installation 3 Thread the handle K onto the manifold L 4 Connect the gun fluid supply hoses to the A ISO and B RES fluid inlets of gun NOTE Hoses are color coded red for component A ISO blue for component B RES Red ISO usually is connected to the left side of the valve as viewed from the back of the gun 5 Perform Prime procedure page 8 332198C Operation Operation Prime Haea Perform this procedure w
15. henever air is introduced into the material lines such as after connecting the material supply lines to the dispense valve D 1 Perform Pressure Relief Procedure on page 10 2 Ifa static mixer is installed remove static mixer 3 Use lever H to open the dispense valve inlet ball valves J Always open and close lever H fully and quickly Opening the valve partially or slowly will cause soft spots in the material and may shut down the propor tioner because of a pressure imbalance 4 If necessary prime the proportioner See propor tioner manual for priming instructions 5 Run the proportioner until clean air free material begins to exit the dispense valve 6 If necessary Pressure Balance the Gun 7 Install Disposable Static Mixer Pressure Balance the Gun Lo Balancing the back pressure an 2 e controls ratio lead lag when the gun opens e holds pressure in the hose providing a very smooth flow e minimizes oozing from mixer e minimizes material crossover 1 Use lever H to close the dispense valve inlet ball valves J Always open and close lever H fully and quickly Opening the valve partially or slowly will cause soft spots in the material and may shut down the propor tioner because of a pressure imbalance 2 Remove static mixer 3 With the static mixer removed dispense into a waste container Note pressure gauge readings
16. ing Kit 249036 Restrictor O ring Kit Package of 6 249037 Restrictor Screen Kit 40 mesh Package of 10 15K652 PTFE Night Cap Partially fill with ISO pump oil or ISO pump grease to protect outlet manifold 6 from air and moisture 217374 ISO Pump Oil 1 pint 0 5 liter container 106565 ISO Pump Grease 14 6 oz 0 4 kg cartridge 255247 Ratio Check Nozzle Use with retainer nut 512292 246385 Pump Inlet Strainer Use to strain material before it enters proportioner 14 Gun Length Reduction To reduce the overall length of the gun from 47 in 1194 mm to 24 in 610 mm purchase two of each of the following fittings 503279 and 151243 Use these fit tings to replace fittings 4 and tubes 5 Standard Disposable Mixer 5122897 1 2 in 13 mm ID x 5 8 in 16 mm OD x 30 element Alternate Disposable Mixers 120042 1 4 in 6 mm ID x 3 8 in 10 mm OD x 24 element package of 50 512014 1 4 in 6 mm ID x 3 8 in 10 mm OD x 32 element 512016 3 8 in 10 mm ID x 1 2 in 138 mm OD x 24 element 512017 3 8 in 10 mm ID x 1 2 in 13 mm OD x 30 element 551979f 1 2 in 13 mm ID x 5 8 in 16 mm OD x 36 element 512291 Retainer Nut for 1 2 in 13 mm OD and smaller mixers 5122927 Retainer Nut for 5 8 in 16 mm OD mix ers Use retainer nut 512291 for 1 2 in 138 mm OD and smaller mixers t Use retainer nut 512292 for 5 8 in 16 mm OD and smaller mixers 332198C
17. irectly or indirectly hereto be drawn up in English Les parties reconnaissent avoir convenu que la r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s a la suite de ou en rapport directement ou indirectement avec les proc dures concern es Graco Information For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or call to identify the nearest distributor Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 All written and visual data contained in this document reflects the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice For patent information see www graco com patents Original instructions This manual contains English MM 332198 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES e P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 2012 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revised August 2013
18. mediately with genuine manu facturer s replacement parts only e Donotalter or modify equipment Alterations or modifications may void agency approvals and create safety hazards Make sure all equipment is rated and approved for the environment in which you are using it Use equipment only for its intended purpose Call your distributor for information Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work area Comply with all applicable safety regulations PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture Failure to follow this warning can result in death serious injury or prop erty damage e Do not use 1 1 1 trichloroethane methylene chloride other halogenated hydrocarbon solvents or flu ids containing such solvents e Many other fluids may contain chemicals that can react with aluminum Contact your material sup plier for compatibility 332198C Important Isocyanate ISO Information Important Ilsocyanate ISO Information Isocyanates ISO are catalysts used in two component materials Isocyanate Conditions ttt FOE Spraying or dispensing materials containing isocya nates creates potentially harmful mists vapor
19. nt PERSONAL PROTECTIVE EQUIPMENT Wear appropriate protective equipment when in the work area to help prevent serious injury including eye injury hearing loss inhalation of toxic fumes and burns This protective equipment includes but is not limited to e Protective eyewear and hearing protection e Respirators protective clothing and gloves as recommended by the fluid and solvent manufacturer SKIN INJECTION HAZARD High pressure fluid from dispensing device hose leaks or ruptured components will pierce skin This may look like just a cut but it is a serious injury that can result in amputation Get immediate surgical treatment amp e Do not point dispensing device at anyone or at any part of the body Do not put your hand over the fluid outlet A e Do not stop or deflect leaks with your hand body glove or rag e Follow the Pressure Relief Procedure when you stop dispensing and before cleaning checking or servicing equipment e Tighten all fluid connections before operating the equipment e Check hoses and couplings daily Replace worn or damaged parts immediately an FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help prevent fire and explosion e Use equipment only in well ventilated area e Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc
20. s and atomized particulates Read material manufacturers warnings and material MSDS to know specific hazards and precautions related to isocyanates Prevent inhalation of isocyanate mists vapors and atomized particulates by providing sufficient ventila tion in the work area If sufficient ventilation is not available a supplied air respirator is required for everyone in the work area To prevent contact with isocyanates appropriate per sonal protective equipment including chemically impermeable gloves boots aprons and goggles is also required for everyone in the work area Material Self ignition Some materials may become self igniting if applied too thick Read material manufacturers warnings and material MSDS Keep Components A ISO and B RES Separate Cross contamination can result in cured material in fluid lines which could cause serious injury or damage equipment To prevent cross contamination e Never interchange component A ISO and com ponent B RES wetted parts e Never use solvent on one side if it has been con taminated from the other side 332198C Moisture Sensitivity of Isocyanates Exposure to moisture such as humidity will cause ISO to partially cure forming small hard abrasive crystals which become suspended in the fluid Eventually a film will form on the surface and the ISO will begin to gel increasing in
21. the mixed fluid are the best check of correct ratio and mix quality Install Disposable Static Mixer 9 A WaLa 1 Perform Pressure Relief Procedure page 10 2 Use lever H to close the dispense valve inlet ball valves J 3 Coat threads of outlet manifold F with grease to prevent material curing on threads 4 Install static mixer and secure with nut G Dispense EOD 1 If itis possible that air may be in the fluid lines per form Prime procedure on page 8 2 Ifthe gun has not yet been pressure balanced per form Pressure Balance the Gun procedure on page 8 3 f the fluid in the static mixer is cured or there is no Static mixer installed Install Disposable Static Mixer page 9 4 Start proportioner and adjust to desired pressure See proportioner manual for instructions 332198C Operation NOTE Use the lowest proportioner pressure setting that produces the desired flow If the proportioner pressure setting is too high any dif ferences in viscosity will cause a pressure differential that will result in improper mixing 5 Use lever H to open and close dispense valve inlet ball valves J as desired to dispense materials Always open and close lever H fully and quickly Opening the valve partially or slowly will cause soft spots in the material and may shut down the propor tioner because of a pressure imbalance 6 If stoppin
22. viscos ities are similar add a few hundred psi pressure drop to each side to prevent check valve oscillation Use the chart in FIG 2 on page 15 or use a restrictor about twice the size of your spray tip on both sides Maintenance Routine Cleaning Restrictor Screens Soak the restrictor screens in solvent regularly to clean If soaking is ineffective replace restrictor screens Restrictors Soak the restrictors in solvent and use the included vise 30 and drill bit 31 to clean the orifice Check Valves Soak the check valves in solvent Use a small screw driver to actuate the check valve ball and spring to remove any restriction Ensure fluid flows freely through the check valve before re installing Outlet Manifold Use drill bits to clean the outlet manifold F regularly See the following drill bit size table Item Drill Bit Size Outlet manifold fluid outlet 1 4 in 6 mm Outlet manifold inner passage 1 8 in 3 mm Restrictor size 0 018 in 77 0 45 mm 0 024 IN ee a ee 73 0 61 mm included 0 082 Nis isi eee iin s 67 0 81 mm 0 040 in 2 00 60 1 01 mm O06 2 iMa eee eae ee s 1 16 in 1 59 mm 0 094 M descended nar hae 3 32 in 2 38 mm Drill bit pinvise 117661 included 11 Troubleshooting Troubleshooting Problem Cause Solution Pressure is higher on one side when setting pressure with function knob Pump intake valve parti
23. viscosity NOTICE Partially cured ISO will reduce performance and the life of all wetted parts e Always use a sealed container with a desiccant dryer in the vent or a nitrogen atmosphere Never store ISO in an open container e Keep the ISO pump wet cup or reservoir if installed filled with appropriate lubricant The lubricant creates a barrier between the ISO and the atmosphere e Use only moisture proof hoses compatible with ISO e Never use reclaimed solvents which may contain moisture Always keep solvent containers closed when not in use e Always lubricate threaded parts with an appropri ate lubricant when reassembling NOTE The amount of film formation and rate of crystal lization varies depending on the blend of ISO the humidity and the temperature Foam Resins with 245 fa Blowing Agents Some foam blowing agents will froth at temperatures above 90 F 33 C when not under pressure especially if agitated To reduce frothing minimize preheating in a circulation system Important Isocyanate ISO Information Changing Materials NOTICE Changing the material types used in your equipment requires special attention to avoid equipment damage and downtime e When changing materials flush the equipment multiple times to ensure it is thoroughly clean e Always clean the fluid inlet strainers after flushing e Check with your material manufacturer for chemi cal compatibility e When chan
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