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Graco Inc. 247936 Paint Sprayer User Manual

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Contents

1. Clean all parts in non conductive solvent compati ble with the fluid being used such as xylol or min eral spirits Use of conductive solvents can cause the gun to malfunction 4 Remove the air valve 21 with a pliers Inspect the rubber sealing surface and replace the air valve if damaged When removing the air valve 21 be careful not to damage the seat area The rubber seal is not removable 34 5 Inspect the u cup 6 Do not remove the u cup unless damaged If removed install the new one with its lips facing into the gun handle 17 6 Install the air valve 21 and spring 15 into the gun handle 17 7 Install the fluid adjustment valve 25 Torque to 15 25 in lb 1 7 2 8 Nem 8 Install the barrel page 31 ti12717 Fig 21 Air Valve 312900C Remove and Replace Atomizing Air Restrictor Valve 1 Prepare the gun for repair page 27 2 Remove the atomizing air restrictor valve 23 Inspect the o ring 23c Replace if necessary See FIG 22 3 Install a new atomizing air restrictor valve 23 or disassemble and replace parts individually The valve protrusion must be oriented to clear the air valve 21 shaft If the atomizing air restrictor valve is not desired install the supplied plug 2 4 Torque the valve housing 23a to 15 20 in Ib 1 7 2 3 Nem 23c 2 23a 23b ti1508a Fig 22 Atomizing Air Restrictor Valve 312900C Gun Repair Repair ES
2. Fluid Drain Valve Gun Air Inlet Gun Fluid Inlet These items are required for proper operation and must be purchased separately NOTE Solenoid valve b is not offered as a Graco accessory 312900C Connect the Air Line BA To reduce the risk of electric shock or other serious injury the air supply hose must be electrically con nected to a true earth ground Use only Graco Grounded Air Supply Hose 1 Connect the Graco Grounded Air Supply Hose R between the air supply line and the gun s air inlet V FiG 2 The gun air inlet fitting has a left hand thread Connect the air supply hose ground wire Q to a true earth ground To air supply p ti1259 Fic 2 2 Install an air line filter water separator O on the gun air line to ensure a dry clean air supply to the gun Dirt and moisture can ruin the appearance of your finished workpiece and can cause the gun to malfunction 3 Install a bleed type air regulator G on the pump and gun air supply lines to control air pressure to the pump and gun 4 Install a bleed type air valve E on the pump air line to shut off air to the pump Install an additional bleed type air valve C on the main air line A to isolate the accessories for servicing um The bleed type air valve E is required in your sys tem to relieve air trapped between the valve and the pump after the air regulator is shut off Trapped
3. Follow steps 1 6 below to flush the gun when using gun first time changing colors before fluid dries at end of day and before storing gun This gun has nylon components which will be dam aged if you use methylene chloride as a flushing or cleaning solvent 4 Point gun into grounded metal pail Flush until clean 1 Turn ES ON OFF switch OFF O solvent flows from gun ti12724_x2 AN deem ti1934 2 Relieve pressure page 19 5 ti1934 ti12718 18 312900C Pressure Relief wo Pressurized Equipment Hazard The system pressure must be manually relieved to prevent the system from starting or spraying acciden tally To reduce the risk of an injury from electric shock accidental spray from the gun splashing fluid or mov ing parts follow the Pressure Relief Procedure whenever you are instructed to relieve the pressure stop spraying check or service any of the system equipment 1 Turn the ES ON OFF valve OFF ti12724 x2 2 Turn off the air bleed valves to the fluid source and to the gun ti1289 3 Trigger the gun into a grounded metal waste con tainer to relieve the fluid pressure ti1934 4 Open the pump drain valve having a waste con tainer ready to catch the drainage Leave the pump drain valve open until you are ready to spray again 3129
4. WRENCH ball end 4 mm MULTI TOOL TUBE exhaust not shown CLAMP not shown GREASE dielectric tube not shown COVER gun box of 10 not shown Qty Ref No Part No Description Qty 42A 179791 TAG warning not shown replace 1 ment available at no cost 43A 180060 SIGN warning not shown 1 replacement available at no cost 53 197624 SPRING compression 1 54 112644 NUT swagelock 1 55 111286 FERRULE front 1 56 197910 SCREW pivot ES HI LO 247937 1 only 57 276734 PLUG KV adjust 247937 only 1 58 244627 SWITCH ES HI LO 247937 only 1 59 245265 CIRCUIT flexible 247937 only 1 60 248130 O RING pack of 6 1 61 24A431 KIT wide pattern not shown 1 Included in Air Seal Repair Kit 244781 T Included in Fluid Seal Repair Kit 244911 Rubber seal is not removable AReplacement Warning labels signs tags and cards are available at no cost 312900C Accessories Air Line Accessories AirFlex Flexible Grounded Air Hose 100 psi 7 bar 0 7 MPa Maximum Working Pressure 0 315 in 8 mm ID 1 4 npsm f x 1 4 npsm f left hand thread 244963 6ft 1 8m 244964 15 ft 4 6 m 244965 25 ft 7 6 m 244966 36 ft 11 m 244967 50 ft 15 m 244968 75 ft 23 m 244969 100 ft 30 5 m Standard Grounded Air Hose 100 psi 7 bar 0 7 MPa Maximum Working Pressure 0 315 in 8 mm ID 1 4 npsm f x 1 4 npsm f left hand thread 223068 6 ft 1 8 m 223069 15 ft 4 6 m 223070
5. 22e 221 22g 23 23a 23b 23c 23d 24 24a 25 Part No 244556 101021 106560 197566 197567 244557 244558 111516 113137 198403 198404 198453 198464 249185 244559 197594 197591 111504 101021 249323 112085 244593 Description VALVE adjustment fan includes 20a 20d RING retaining O RING fluorocarbon HOUSING fan valve STEM fan valve VALVE air VALVE electrostatics ON OFF includes 22a 22g O RING CV75 O RING fluoroelastomer SHAFT valve PLATE retaining WASHER PIN KNOB VALVE air restrictor includes 23a 23d HOUSING valve SHAFT O RING fluoroelastomer RING retaining VALVE exhaust includes 24a O RING fluorocarbon VALVE adjustment fluid Pa Qty rts 39 Parts Ref No 26 26a 26b 26cT 26dT 26et 26ff 26g 26ht 27 27a 29 30 31 32 35 36 37 38 39 40 41 40 Part No 24A331 24A330 185495 178763 178409 186069 116905 197641 111316 244927 198307 24A338 24A335 24A328 111285 244834 107460 276741 185103 110231 116553 197979 Description NEEDLE includes 26a 26h NEEDLE assembly HOUSING packing PACKING needle PACKING fluid SPACER packing SEAL NUT packing PACKING o ring RING retaining includes 27a PACKING u cup NEEDLE electrode TRIGGER PROBE external charging FERRULE back SWIVEL air 1 4 npsm m left hand threads
6. 25 ft 7 6 m 223071 36ft 11m 223072 50 ft 15 m 223073 75 ft 23 m 223074 100 ft 30 5 m High Flow Grounded Air Hose 100 psi 7 bar 0 7 MPa Maximum Working Pressure 0 375 in 10 mm ID 3 8 npsm f x 1 4 npsm f left hand thread 24A225 24A226 50 ft 15 2 m 75 ft 22 9 m Bleed Type Master Air Valve 300 psi 21 bar 2 1 MPa Maximum Working Pressure Relieves air trapped in the air line between this valve and the pump air motor when closed 107141 3 4 npt Air Line Shutoff Valve 150 psi 10 bar 1 0 MPa Maximum Working Pressure For turning air to gun on or off 224754 312900C 1 4 npsm m x 1 4 npsm f left hand thread Accessories Air Line Quick Disconnect 112534 Swiveling quick disconnect replaces stan dard air inlet swivel Air Hose Adapter Nipple 185493 Use to connect multiple air hoses 1 4 npt x 1 4 npsm left hand thread Non Swivel Air Inlet Fitting 185105 Replaces standard swivel Left hand thread Extended Air Inlet Fitting 189191 Replaces standard swivel to provide extended handle grip area Left hand thread Fluid Line Accessories Fluid Hose 225 psi 14 bar 1 4 MPa Maximum Working Pressure FM Approved nylon 3 8 npsm fbe 215637 1 Ain 6 mm ID x 25 ft 7 6 m 215638 1 4 in 6 mm ID x 50 ft 15 2 m Fluid Shutoff Drain Valve 500 psi 35 bar 3 5 MPa Maximum Working Pressure For turning fluid on or off to the gun and for relieving fluid line pressure at
7. ON OFF Valve 1 2 3 Prepare the gun for repair page 27 Loosen the screw 48 Remove the valve Lubricate the o rings 22a and 22b with non sili cone grease Part No 111265 Do not over lubri cate Do not over lubricate parts Excessive lubricant on the o rings can be pushed into the gun air passage and blemish the finish on the workpiece 4 Clean and inspect parts for damage Replace if nec essary The protrusion on the retainer plate 22d must point upward Reinstall the valve Torque the screw 48 to 15 25 in Ib 1 7 2 8 Nem ti12720 Fig 23 ES ON OFF Valve 35 Parts Parts Part No 247936 60 kV Electrostatic Gun Series A Standard model See page 38 for detail views of the alternator 19 fan adjustment valve 20 ES ON OFF valve 22 and packing rod 26 A Maximum torque 10 in Ib 1 1 Nem Ref No 37 Multi tool 14 ti11932 36 312900C Part No 247937 60 kV Electrostatic Gun Series A Smart model See page 38 for detail views of the alternator 19 fan adjustment valve 20 ES ON OFF valve 22 and packing rod 26 A Maximum torque 10 in Ib 1 1 Nem 18 18a p Ref No 37 Multi tool 14 7 ti12659 312900C Parts 37 Parts Ref No 19 Alternator Ref No 20 Fan Adjustment Valve 19d 19c 26a Ref No 22 ES ON OFF Valve 22g 26ft 26g RD ue hy F ts ti12719 26hT ti12720 247937 Smart Mode
8. Repair ES ON OFF Valve 05 35 Parts sare rr Pie ea ee eae ara Ae HERR 36 Accessories 00 e 0 eee e eee eee eee 41 Air Line Accessories 00 00 41 Fluid Line Accessories s 41 Gun Accessories 0000s 42 Miscellaneous Accessories 42 Technical Data ss 43 Graco Warranty leeseseeeeess 44 Graco Information 44 312900C Warnings Warnings Warning Symbol Notice AWARNING A NOTICE alerts you to the possibility of damage to This symbol alerts you to the possibility of serious injury lor destruction of equipment if you do not follow the or death if you do not follow the instructions instructions 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 symbol refers to procedure specific risk Refer back to these warnings Additional product specific warnings may be found throughout the body of this manual where applicable FIRE EXPLOSION AND ELECTRIC SHOCK HAZARD W Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help prevent fire P and explosion B e Electrostatic equipment must be used only by trained qualified personnel who understand the require Rm ments of this manual e Ground equipment personnel object being sp
9. a standard Pro Xs gun i e 1 5 mm 1 2 mm flow area Table 1 Fluid Nozzles Part No and Length in Production Rates mm 24A438 Round end Light to medium viscosity l 15 17 381 432 Up to 15 oz min 450 cc min Round end Medium to high viscosity and 24A279 14 16 356 406 high solids Up to 15 oz min 450 cc min 24A276 Tapered end Light to medium viscosity 17 19 432 483 Up to 15 oz min 450 cc min 24A274 Tapered end Light to medium viscosity 12 14 305 356 Up to 15 oz min 450 cc min Medium to high viscosity and Round end high solids PARAGA 11 13 279 330 Up to 15 oz min 450 cc min For use with 2 0 mm nozzle Light to medium viscosity and 24A275 Tapered end high solids 14 16 356 406 Aerospace coatings Up to 25 oz min 750 cc min Part No Orifice Size 197265 1 2 mm 047 in 197266 1 5 mm 055 in 197267 1 8 mm 070 in 249922 1 2 mm 047 in 249923 1 5 mm 055 in 249924 1 8 mm 070 in Glass reinforced acetal construction 312900C gray 24A277 red 24A278 green Also available in the following colors 24A376 13 Installation Grounding cx Fire Explosion and Electric Shock Hazard When operating the electrostatic gun any ungrounded objects in the spray area people containers tools etc can become electrically charged Improper grounding can result in static spark
10. air can cause the pump to cycle unexpectedly which can result in serious injury including splashing fluid in the eyes or on the skin 312900C Installation 5 Install an air shutoff valve P on each gun air supply line to shut off air to the gun s Connect the Charging Probe 1 Apply dielectric grease to probe socket ti12722 Fic 3 2 Press electrode on in Connect Disconnect position shown in FIG 4 3 Rotate electrode to spray position Connect the Charging Electrode Connect Disconnect Spray Position Positi n T ti1933a FIG 4 The external charging probe rotates easily Do not press too hard when rotating it or it could be dam aged For proper performance do not operate electro statics if the charging probe is not in spray position 11 Installation Connect the Exhaust Tube Press the exhaust tube 38 onto the barbed adapter on the bottom of the gun handle Secure the tube with the clamp 39 FiG 5 Barbed adapter FIG 5 Connect the Fluid Line 1 Before connecting the fluid line N blow it out with air and flush it with solvent Use solvent compatible with the fluid to be sprayed 2 Install a fluid regulator M on the fluid line to control fluid pressure to the gun 3 Install a fluid filter K and drain valve U at the pump outlet The fluid drain valve U is required in your system to assist in relieving
11. performed prop erly Do not install or repair this equipment unless you NOTE Check all possible remedies in the Troubleshoot ing Chart before disassembling the gun Problem Cause Solution Poor wrap In general a Pro Xs Waterborne gun will have less wrap than a Pro Xs solventborne gun ES ON OFF valve OFF 0 Turn ON I Gun air pressure too low Check air pressure to gun minimum 40 psi 0 28 MPa 2 8 bar needed at gun for full voltage Atomizing air pressure too high Decrease Fluid pressure too high Decrease Incorrect distance from gun to part Should be 8 12 in 200 300 mm Poorly grounded parts Resistance must be 1 megohm or less Clean workpiece hangers Faulty gun resistance See Test Total Gun Resistance on page 23 Faulty turbine alternator Be sure the plug is in place on the back of the power supply housing Remove and test the turbine alterna tor See page 33 The KV HI LO lever is on LO Check the lever actuation replace if needed ES indicator or voltage current dis play is not lit ES ON OFF valve OFF 0 Turn ON I No power Replace power supply See page 32 Voltage current display stays red smart guns only Gun too close to part Should be 8 12 in 200 300 mm Dirty gun Clean See Maintenance on page 20 Operator gets mild shock Operator not grounded or is nea
12. spray red see Electrical Troubleshooting page 22 NOTE Normal current draw for this model is higher and the yellow current bar will be lit 7 7 ti12582 L ES HI LO switch 247937 only Sets voltage to HI or LO factory settings 1112582 M LO voltage adjustment 247937 only Remove plug to adjust to 4 settings ti12582 8 312900C Installation Install the System 2 t t iw SA Installing and servicing this equipment requires access to parts which may cause electric shock or other serious injury if work is not performed properly Donotinstall or service this equipment unless you are trained and qualified Be sure your installation complies with National State and Local codes for the installation of elec trical apparatus in a Class I Div Group D ora Group II Category 2G Hazardous Location Comply with all applicable local state and national fire electrical and other safety regula tions FiG 1 shows a typical electrostatic air spray system It is not an actual system design For assistance in designing a system to suit your particular needs contact your Graco distributor 312900C Installation Warning Sign Mount warning signs in the spray area where they can easily be seen and read by all operators An English Warn
13. the pump 208630 1 2 npt m x 3 8 npt f carbon steel and PTFE for non corrosive fluids Fluid Swivel 5800 psi 405 bar 40 MPa Maximum Working Pressure 115898 1 4 npsm m x 1 4 npsm f 41 Accessories Gun Accessories Gun Repair Kits 244781 Air Seal Repair Kit 244911 Fluid Seal Repair Kit Push Pull Fan Air Valve 244912 For quick change of fan size ES Always On Kit 244913 Replaces inlet fitting with ball valve to shut off air during flushing Converts ES ON OFF valve to always ON condition Handle Grips 245263 Medium Grip 245264 Large Grip Gun Washer Kit 245270 Use to convert Graco gun washers so they can clean PRO Xs3 and PRO Xs4 air spray guns Pressure Cups Includes air regulators for gun atomization air and sup ply air to pressure cup 244731 1 Quart 0 95 Liter 244732 2 Quart 1 90 Liter Gun Valve Lubricant 111265 4 oz 113 g tube of sanitary non silicone lubricant for fluid seals and wear areas Alternator Bearing Kit 223688 To repair the turbine alternator Cleaning Brush 105749 For cleaning air cap and fluid nozzle 42 Miscellaneous Accessories Ground Wire and Clamp 222011 For grounding pump and other components and equipment in the spray area 12 gauge 25 ft 7 6 m Megohmmeter 241079 500 Volt output 0 01 2000 megohms Not for use in hazardous areas Paint Resistance Meter 722886 Use with 722860 Paint Probe to measure resistance of paint Not fo
14. 00C Pressure Relief 5 If the nozzle or hose is completely clogged or pres sure is not fully relieved slowly loosen the hose end coupling Now clear the nozzle or hose o 11298 Shutdown Follow these steps at end of workshift and before clean ing checking or repairing equipment 1 Flush page 18 2 Hang gun from hook Nozzle must point down ti12718 19 Maintenance Maintenance Clean Gun Daily 4 Clean air cap retaining ring and nozzle with soft 1 Flush page 18 brush and non conductive compatible solvent Aw EN a Clean outside of gun with non conductive compatible solvent Point gun down de ub n5 ti1297a b Use soft damp cloth 5 c Donotimmerse gun ti12716 6 Usetoothpick or other soft tool to clean air cap holes Do not use metal tools 7 Reinstall air cap Tighten securely 3 Remove air cap z ti1299a ti1296 20 312900C Maintenance Daily System Care 1 Relieve pressure page 19 5 Check movement of trigger T and valves V A A Lubricate if necessary ti12658 ti1300a 312900C 21 Electrical Troubleshooting Electrical Troubleshooting WI A Electric Shock Hazard are trained and qualified Installing and servicing this equipment requires access to parts which may cause an electric shock or other serious injury if the work is not
15. English MM 312900 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2008 Graco Inc is registered to ISO 9001 WWW graco com Revised 10 2009
16. 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 or two thousand hours of operation from the date of sale repair or replace any part of the equipment determined by Graco to be defective However any deficiency in the barrel handle trigger hook internal power supply and alternator excluding turbine bearings will be repaired or replaced for thirty six months or six thousand hours of operation from the date of sale This warranty applies only when 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 c
17. Instructions G GRACO Manual Electrostatic PRO Xs Waterborne Air Spray Gun dr For use with conductive spray materials waterborne and other materials less than 1 megohm cm For professional use ONLY For use in Class I Div hazardous locations using Group D spray materials c Us APPROVED For use in Group ll Zone 1 areas using Group IIA spray materials C 3 2 G EEx 0 24 mJ 247936 Standard Model 247937 Smart Model 100 psi 0 7 MPa 7 bar Maximum Air Inlet Pressure 100 psi 0 7 MPa 7 bar Maximum Working Fluid Pressure Important Safety Instructions e Read all warnings and instructions in this manual Save these instructions LP See page 2 for Table of Contents U S Patent Pending Smart Model 247937 Standard Model 247936 HO03 PROVEN QUALITY LEADING TECHNOLOGY Table of Contents Warnings 2 20 cece acetate eta eer 3 Warning Symbol 000 eee eee 3 Noti 2o Ae eA eee Pee EIS 3 OVGNVIOW cl ite ied die Meee eet 5 How the Electrostatic Air Spray Gun Works 5 Installation seen 9 Install the System 0 0000 cee eee 9 Warning Sign lisse eee 9 Ventilate the Spray Booth 9 Connect the Air Line 20005 11 Connect the Charging Probe 11 Connect the Exhaust Tube 12 Connect the Fluid Line 12 Filter the Fluid 000000005 12 Select
18. a Fluid Nozzle and Air Cap 13 Grounding 0 0 e eee ee eee 14 Check Electrical Grounding 15 Check Fluid Resistivity 15 Check Fluid Viscosity lues 16 Prepare to Paint 20000000 16 Pressure Relief suse 19 Shutdown ioc ee tere eters rs emunt 19 Maintenance lessen 20 Electrical Troubleshooting 22 Electrical Tests Lleseeese 23 Test Total Gun Resistance 23 Test Gun Resistance 000 23 Test Charging Probe Resistance 23 Test Power Supply Resistance 24 Test Barrel Resistance 24 2 Spray Pattern Troubleshooting 25 Gun Operation Troubleshooting 26 GunRep ir c celu RR Rer 27 Prepare the Gun for Repair 27 Replace Air Cap Nozzle 28 Replace Fluid Needle 28 Remove Fluid Packing 5 29 Repair Packing Rod 2 05 30 Remove Barrel 00022000 illus 31 Install Barrel nnana nauan aaa 31 Remove and Replace Power Supply 32 Remove and Replace Turbine Alternator 33 Repair Fan Air Adjustment Valve 33 Repair Fluid Adjustment Valve 34 Repair Air Valve 0 eee eee 34 Remove and Replace Atomizing Air Restrictor Valve 2 35
19. ard To reduce the risk of an injury follow the Pressure Relief procedure on page 19 whenever you are instructed to relieve the pressure NOTE Check all possible remedies in the Troubleshoot ing Chart before disassembling the gun NOTE Some spray pattern problems are caused by the improper balance between air and fluid Problem Cause Solution Fluttering or spitting spray No fluid Refill supply Loose dirty damaged nozzle seat Air in fluid supply Clean or replace nozzle page 28 Check fluid source Refill Improper spray pattern Damaged nozzle or air cap Replace page 28 Fluid buildup on air cap or nozzle See Maintenance on page 20 e a Fan air pressure too high Decrease Fluid too thin Increase viscosity Fluid pressure too low Increase Fan air pressure too low Increase ae Fluid too thick Reduce viscosity Too much fluid Decrease flow Streaks Did not apply 50 overlap Overlap strokes 50 Dirty or damaged air cap Clean or replace page 28 312900C 25 Gun Operation Troubleshooting Gun Operation Troubleshooting ar A wo Electric Shock Hazard Pressurized Equipment Hazard Installing and servicing this equipment requires To reduce the risk of an injury follow the Pressure access to parts which may cause an electric shock or Relief pro
20. cedure on page 19 whenever you are other serious injury if the work is not performed prop instructed to relieve the pressure erly Do not install or repair this equipment unless you are trained and qualified NOTE Check all possible remedies in the Troubleshoot ing Chart before disassembling the gun Problem Cause Solution Excessive spray fog Atomizing air pressure too high Close restrictor valve some or decrease air pressure as low as pos sible minimum 40 psi 0 28 MPa 2 8 bar needed at gun for full voltage Fluid too thin Increase viscosity Orange Peel finish Atomizing air pressure too low Open atomizing air valve more or increase gun air inlet pressure use lowest air pressure necessary Poorly mixed or filtered fluid Remix or refilter fluid Fluid too thick Reduce viscosity Fluid leaks from the fluid packing Worn packings or rod Replace packings or rod see page area 30 Air leaks from the front of the gun Air valve 21 is not seating properly Clean and service air valve see page 34 Fluid leakage from the front of the Worn or damaged packing rod 26 Replace see page 30 gun Worn fluid seat Replace fluid nozzle and or needle see page 28 Loose fluid nozzle 7 Tighten see page 28 Damaged nozzle o ring 7b Replace see page 28 Gun does not spray Low fluid supply Add fluid if necessary Damaged air cap 9 Re
21. e Part No 111265 Do not over lubricate 6 Install the spring 4 against the nut E as shown 7 Install the packing rod assembly 26 into the gun barrel Using the multi tool 37 tighten the assem bly until just snug 8 Install the trigger 30 and screws 8 9 Install the fluid needle page 28 10 Install the nozzle and air cap page 28 11 Install the probe 26a ti12719 312900C Gun Repair Remove Barrel Install Barrel 1 Prepare the gun for repair page 27 1 Be sure the gasket 10 and grounding spring 53 are in place Make sure the air holes are aligned 2 Carefully loosen the nut 54 from the bracket fluid properly Replace if damaged See Fic 17 fitting 13 Pull the tube 14 or 50a out of the fitting Make sure both ferrules and the nut stay with the 2 Place the barrel 16 over the power supply 18 and tube onto the gun handle 17 3 Loosen the three screws 11 3 Tighten the three screws 11 oppositely and evenly about a half turn past snug To avoid damaging the power supply 18 pull the gun barrel straight away from the gun handle If Do not over tighten the screws 11 necessary gently move the gun barrel from side to side to free it from the gun handle 4 Assemble the fluid tube 14 into the bracket fitting 13 Ensure that the ferrules are in place Tighten 4 Hold the gun handle 17 with one hand and pull the the nut 54 barrel 16 straight off the ha
22. esistance between the charging probe tip BB and the air swivel 35 see FIG 8 it should be 90 130 megohms If outside this range go to the next test If in range refer to Gun Repair on page 27 for other possible causes of poor performance ti1468ax Fig 8 Test Total Gun Resistance 312900C Electrical Tests Test Gun Resistance Measure resistance between the air swivel 35 and the charging probe socket CC see FIG 9 it should be 70 95 megohms If outside this range check the power supply and barrel resistance If in range test the charg ing probe resistance m ALB dLA 7 35 ti13731 Fic 9 Test Gun Resistance Test Charging Probe Resistance Measure resistance between the metal spring in the charging probe DD and the charging probe tip BB see FIG 9 it should be 15 30 megohms If outside this range replace the charging probe If in range inspect the spring and barrel socket for possible causes of poor continuity Reassemble the charging probe and retest the gun resistance AA Ip ALE BB NI i DD ti13732 Fic 10 Test Charging Probe Resistance 23 Electrical Tests Test Power Supply Resistance 1 2 Remove the power supply 18 page 31 Remove the turbine alternator 19 from the power supply page 32 Measure resistance from the power supply s ground strips EE to
23. fluid pressure in the displacement pump hose and gun Triggering the gun to relieve pressure may not be sufficient Install a drain valve close to the pump s fluid outlet The drain valve reduces the risk of serious injury including splashing in the eyes or on the skin 4 Connectthe fluid line to the 3 8 npsm gun fluid inlet W FiG 6 12 ti1277 FiG 6 5 Before running any paint through the spray gun flush it with a compatible solvent Filter the Fluid Install a fluid filter K to remove particles and sediment that could clog the spray nozzle 312900C Select a Fluid Nozzle and Air Cap The gun is supplied with Part No 197266 Nozzle and 24A276 Air Cap If you require a different size refer to Table 1 and Table 2 and instruction manual 309419 or consult with your Graco distributor See Replace Air Cap Nozzle on page 28 A wide pattern kit P N 24A431 is included with the gun and if installed will provide more fan air for wider spray patterns If pattern becomes split use the fan air valve to reduce the amount of fan air Installation Table 2 Air Caps Pattern Shape Recommended Fluids and um To reduce the risk of an injury follow the Pressure Relief procedure on page 19 before removing or installing a fluid nozzle and or air cap NOTE Due to the larger needle diameter use a nozzle one size larger than you would use with
24. fluids or fumes can cause serious injury or death if splashed in the eyes or on skin inhaled or swal lowed Read MSDS s to know the specific hazards of the fluids you are using Store hazardous fluid in approved containers and dispose of it according to applicable guidelines Always wear impervious gloves when spraying or cleaning equipment e f this equipment is used with isocyanate material see additional information on isocyanates in Isocya nate Conditions Section of this manual 4 312900C Overview Overview How the Electrostatic Air Spray Gun Works The air hose supplies air to the spray gun Part of the air operates the turbine and the rest of the air atomizes the fluid being sprayed The turbine generates power which is converted by the power cartridge to supply high volt age current to the gun s external charging probe KEY Air swivel inlet page 6 Fluid inlet page 6 Turbine air exhaust page 6 Air cap and nozzle page 6 Fluid needle page 6 Fluid adjustment page 7 Fan air adjustment valve page 7 Atomizing air restrictor valve page 7 ES ON OFF switch page 7 ES indicator 247936 only page 8 Voltage current display 247937 only page 8 ES HI LO switch 247937 only page 8 LO voltage adjustment 247937 only page 8 External charging probe ZEZrFACT7 romnmoour Smart Model 247937 312900C ti12658 The pump supplies fluid to the hose and gun where the fluid is atomized by the a
25. h servicing any part of the system and whenever you an asterisk for example 6 are instructed to relieve the pressure e Fluid Seal Repair Kit 244911 is available The kit must be purchased separately Kit parts are marked with a double asterisk for example 51 1 Flush the gun page 18 2 Relieve the pressure page 19 3 Disconnect the gun air and fluid lines 4 Remove the gun from the worksite Repair area must be clean 312900C 27 Gun Repair Replace Air Cap Nozzle Hold the front end of the gun up and trigger the gun while removing the nozzle to help drain the gun and prevent any paint or solvent left in the gun from entering the air passages 1 Prepare gun for repair page 27 2 Remove probe 3 Remove the retaining ring 27 and air cap 9 See FiG 13 4 Point gun up and squeeze trigger while removing the fluid nozzle 7 assembly with the multi tool 37 spore 27a 27 Fig 13 Replace Air Cap Nozzle Ww 8 A Fire Explosion and Electric Shock Hazard The nozzle contact ring 7a is a conductive contact ring not a sealing o ring To reduce the risk of spark ing or electric shock do not remove the nozzle contact ring 7a except to replace it and never operate the gun without the contact ring in place Do not replace the contact ring with anything but a genuine Graco part 28 Use non silicone grease Part No 111265 on the small o ri
26. he resistance is still too high replace the air hose 312900C 15 Installation Check Fluid Viscosity To check fluid viscosity you will need a viscosity cup a stopwatch Completely submerge the viscosity cup in the fluid Lift the cup out quickly starting the stopwatch as soon as the cup is completely removed Watch the stream of fluid coming from the bottom of the cup As soon as there is a break in the stream shut off the stopwatch Record the fluid type elapsed time and size of the viscosity cup If the viscosity is too high or too low contact the material supplier Adjust as necessary Prepare to Paint 1 2 3 16 Position air cap Fully open fan air adjustment valve Q Fully open fluid adjustment valve oO O FO 4 Fully open atomizing air restrictor valve 5 Checkthat ES ON OFF switch is OFF O NOTE This illustration shows the switch in the ON I position to view and O indicators ti12723 6 Start pump Adjust fluid regulator until stream from gun travels 8 12 in 200 300 mm before falling off Typically if fluid pressure is below 5 psi 04 MPa 0 4 bar or above 20 psi 0 14 MPa 1 4 bar a change of nozzle size is recommended 200 300 mm ti12684 312900C 7 Setgunair regulator to deliver minimu
27. ing which can cause a fire explosion or electric shock Follow the grounding instructions below The following are minimum grounding requirements for a basic electrostatic system Your system may include other equipment or objects which must be grounded Check your local electrical code for detailed grounding instructions Your system must be connected to a true earth ground e Pump ground the pump by connecting a ground wire and clamp as described in your separate pump instruction manual e Electrostatic Air Spray Gun ground the gun by con necting the Graco Grounded Air Hose and connect ing the air hose ground wire to a true earth ground See Check Electrical Grounding page 15 e Air compressors ground the equipment according to the manufacturer s recommendations e Allair and fluid lines must be properly grounded Use only grounded hoses with a maximum of 100 feet 30 5 m combined hose length to ensure grounding continuity 14 All persons entering the spray area shoes must have conductive soles such as leather or personal grounding straps must be worn Do not wear shoes with non conductive soles such as rubber or plastic If gloves are necessary wear the conductive gloves that are supplied with the gun If non Graco gloves are worn cut off fingers or palm area of gloves to ensure your hand contacts the grounded gun han dle Object being sprayed keep the workpiece hangers clean and grounded at a
28. ing Sign is provided with the gun Ventilate the Spray Booth A Provide fresh air ventilation to avoid the buildup of flammable or toxic vapors when spraying flushing or cleaning the gun Do not operate the gun unless ventilation fans are operating Electrically interlock the gun air supply with the ventila tors to prevent gun operation without ventilating fans operating Check and follow all National State and Local codes regarding air exhaust velocity require ments High velocity air exhaust will decrease the operating effi ciency of the electrostatic system Air exhaust velocity of 100 ft min 31 linear meters minute should be sufficient Installation Fig 1 Typical Installation Key a Main Air Supply Line b Ventilation Fan Interlock Solenoid Valve ct Main Air Supply Shutoff Valve bleed type d Pump Air Line Filter Water Separator et Pump Air Supply Shutoff Valve bleed type f Air Line Lubricator g Air Pressure Regulator h Pump jf Pump Ground Wire k Fluid Filter Fluid Supply Line Shutoff Valve m Fluid Pressure Regulator n Fluid Supply Line o Gun Air Line Filter Water Separator p Gun Air Supply Line Shutoff Valve bleed type Air Hose Ground Wire 10 ut rt ut T ES ON OFF valve lis ON O is OFF AS I b Sl are ti12721 k v F S g CHA Di ti1498ax Graco Grounded Air Hose Electrostatic Air Spray Gun Air Line Drain Valve
29. ir cap and the atomized parti cles are electrostatically charged as they pass the external charging probe The charged fluid is attracted to the grounded workpiece wrapping around and evenly coating all surfaces The external charging allows the fluid supply to remain grounded at all times and therefore eliminate the need for an isolation sys tem Standard Model 247936 ti12581 Smart Model 247937 ti12582 Overview A Air swivel inlet Left hand thread B Fluid inet B p til254a C Turbine air exhaust til254a O D Air cap and nozzle See page 13 for sizes E Fluid needle Shuts off fluid flow and provides a ground point 6 312900C Overview Fluid adjustment valve Adjusts fluid needle travel Use only in low flow conditions to reduce needle wear Fan air adjustment valve Adjusts fan size and shape Atomizing air restrictor valve Restricts atomizing air flow Replace with plug included if desired ES ON OFF switch Turns electrostatics ON I or OFF 0 312900C Overview J ES indicator 247936 only Green when ES is ON 1 ti12581 K Voltage 247937 only Shows voltage and current Green yellow
30. it from the handle 17 You may replace the valve as an assembly go to step 9 or as individual parts steps 3 9 Remove the retaining ring 20a See FiG 19 Turn the valve stem 20d counterclockwise until it comes free from the valve housing 20c Remove the o ring 20b Clean all parts and inspect for wear or damage Use non silicone grease Part No 111265 Do not over lubricate When reassembling the fan air valve 20 lightly lubricate the valve threads and screw the stem 20d fully into the housing 20c until bottomed Install the o ring 20b lubricate and unscrew the valve stem until the o ring enters the housing Reassemble the retaining ring 20a Unscrew the valve stem from the housing until it is stopped by the retaining ring Screw the valve assembly 20 into the gun handle using a wrench on the flats of the housing Torque to 15 25 in Ib 1 7 2 8 Nem 33 Gun Repair Repair Fluid Adjustment Valve 1 Prepare the gun for repair page 27 2 Remove the fluid adjustment valve 25 It can only be replaced as a complete assembly See FIG 20 3 Screw the valve 25 into the gun handle Torque to 15 25 in Ib 1 7 2 8 Nem D Ay D DW 25 ti11931 Fig 20 Fluid Adjustment Valve Repair Air Valve 1 Prepare the gun for service page 27 2 Remove the barrel page 31 3 Remove the fluid adjustment valve 25 from the handle 17 Remove the spring 15 See FIG 21
31. l controls Ret No 37 Multi tool 247936 Standard Model controls 38 312900C Part No 247936 60 kV Electrostatic Gun Series A Standard model Part No 247937 60 kV Electrostatic Gun Series A Smart model Ref No a fF CQ I 7a 7b 10 11 13 14 15 16 17 18 18a 19 19a 19b 19c 19d 19e Part No 111157 197967 198058 185111 111450 188749 197266 111261 111507 24A445 24A276 197517 197518 24A336 24A334 185116 24A329 24A596 24A595 24A332 256267 244555 110073 223688 244577 111745 198821 312900C Description FITTING tube fluid PLUG handle SCREW cap socket head SPRING compression PACKING o ring 247937 only PACKING u cup air valve UHMWPE NOZZLE 1 5 mm orifice includes 7a and 7b O RING conductive O RING fluoroelastomer SCREW trigger AIR CAP GASKET barrel SCREW socket hd 10 24 x 3 4 in 19 mm BRACKET inlet fluid TUBE fluid SPRING compression BODY gun ES includes 16a 16e HANDLE smart 247937 HANDLE standard 247936 POWER SUPPLY 60 kV SEAL TURBINE alternator includes 19a 19e O RING fluoroelastomer BEARING KIT includes front and rear bearings and fan COIL RING retaining PAD pressure Ref No 20 20a 20b 20c 20d 22a 22b 22c 22d
32. laimed 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 PARTICULAR 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 manufac
33. ll times Resistance must not exceed 1 megohm The floor of the spray area must be electrically con ductive and grounded Do not cover the floor with cardboard or any non conductive material which would interrupt grounding continuity Flammable liquids in the spray area must be kept in approved grounded containers Do not use plastic containers Do not store more than the quantity needed for one shift All electrically conductive objects or devices in the spray area including fluid containers and wash cans must be properly grounded 312900C Installation Check Electrical Grounding Zw AN lI Fire Explosion and Electric Shock Hazard Megohmmeter Part No 241079 AA see FIG 7 is not approved for use in a hazardous area To reduce the risk of sparking do not use the megohmmeter to check electrical grounding unless The gun has been removed from the hazardous area e Orall spraying devices in the hazardous area are turned off ventilation fans in the hazardous area are operating and there are no flammable vapors in the area such as open solvent containers or fumes from spraying Failure to follow this warning could cause fire explo sion and electric shock and result in serious injury and property damage Check Fluid Resistivity Fig 7 Check Gun Grounding 1 Have a qualified electrician check the electrical grounding continuity of the spray gun a
34. m 40 psi 0 28 MPa 2 8 bar at gun when triggered for maximum transfer efficiency See table at right TI1281A Air Hose Length Regulator Setting ft m psi MPa bar 15 4 6 50 0 35 3 5 25 7 6 60 0 42 4 2 50 15 3 75 0 52 5 2 5 16 in 8 mm diameter 8 mm 5 16 in Gun triggered 8 Spray test pattern Check atomization If over atomi zation occurs at minimum pressure adjust restrictor valve If atomization is inadequate increase air pressure ti1282b 9 Adjust fan air adjustment valve clockwise for a shorter pattern counterclockwise for wider pattern ti1283a 312900C Installation 10 Turn ES ON OFF switch ON I ti12732 URC AN 11 Check that ES indicator or display is lit If not see Electrical Troubleshooting page 22 ES indicator Standard Model Smart Model 247936 247937 12 Spray test piece Examine edges for coverage If wrap is poor see Spray Pattern Troubleshooting page 25 wi C b C q ti1285b 17 Installation gt ttt n Flush 3 Change fluid source to solvent or disconnect fluid AX ZN ui line and connect solvent supply line to gun Fire Explosion and Electric Shock Hazard Read Fire and Explosion and Electric Shock Hazards page 3
35. n dispense valve leaks or ruptured components can splash in the eyes or on skin and cause serious injury Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment Tighten all fluid connections before operating the equipment Check hoses tubes and couplings daily Replace worn or damaged parts immediately 312900C 3 Warnings m EQUIPMENT MISUSE HAZARD Ls Misuse can cause death or serious injury Do not operate the unit when fatigued or under the influence of drugs or alcohol Do not exceed the maximum working pressure or temperature rating of the lowest rated system com ponent See Technical Data in all equipment manuals Do notleave the work area while equipment is energized or under pressure Turn off all equipment and follow the Pressure Relief Procedure in this manual when equipment is not in use Check equipment daily Repair or replace worn or damaged parts immediately with genuine manufac turer s replacement parts only Do not alter or modify equipment 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 3 TOXIC FLUID OR FUMES HAZARD Qu Toxic
36. nd air hose uly Fire Explosion and Electric Shock Hazard Check the fluid resistivity in a non hazardous area only Resistance Meter 722886 and Probe 722860 are not approved for use in a hazardous area Failure to follow this warning could cause fire explo sion or electric shock and result in serious injury and property damage 2 Turn the ES ON OFF valve OFF 3 Turn off the air and fluid supply to the gun The fluid NOSE MUSTO SOR UIC Ii Graco Part No 722886 Resistance Meter and 722860 Probe are available as accessories to check that the resistivity of the fluid being sprayed meets the require ments of an electrostatic air spray system 4 Make sure the grounded air hose R is connected and the hose ground wire is connected to a true earth ground Follow the instructions included with the meter and wa g probe If the material is above 1 megohm cm then a Pro A Xs3 HC gun may be a better option The Pro Xs WB gun oe is intended to spray very conductive waterborne materi als and other materials less than 1 megohm cm 5 Measure the resistance between the gun handle BB and a true earth ground CC Use an applied voltage of 500 minimum to 1000 volts maximum The resistance should not exceed 1 megohm See FIG 7 6 If the resistance is greater than 1 megohm check the tightness of the ground connections and be sure the air hose ground wire is connected to a true earth ground If t
37. ndle See FiG 16 32 5 Test gun resistance page 23 oi N J N YQ y i tsosa 17 Fig 16 Remove Barrel Fig 17 Install Barrel ti12830 312900C 31 Gun Repair Remove and Replace Power Supply Inspect the gun handle power supply cavity for dirt or moisture Clean with a clean dry rag Do not expose gasket 10 to solvents Prepare gun for service page 27 Remove the barrel 16 page 31 Be careful when handling the power supply 18 to avoid damaging it 3 10 32 Grasp the power supply 18 with your hand With a gentle side to side motion free the power sup ply alternator assembly from the gun handle 17 then carefully pull it straight out On Smart Model only disconnect the flexible circuit 59 from the socket at the top of the handle 17 See Fic 18 Disconnect the 3 wire connector GG from the power supply Slide the alternator up and off the power supply Inspect the power supply and alterna tor for damage On Smart Model only disconnect the 6 pin flexible circuit 59 from the power supply Check the power supply resistance page 24 Replace if necessary On Smart Model only connect the 6 pin flexible cir cuit 59 to the power supply Connect the 3 wire connector GG Slide the alter nator 19 down onto the power supply 18 Lubricate the alternator o ring 19a with non sili cone grease Part No 111265 Do not over lubri cate Ensure the al
38. ng 7b Do not over lubricate Do not lubri cate the contact ring 7a 5 Lightly lubricate the o ring 7b Install it and the contact ring 7a on the nozzle 7 Make sure the fluid needle 29 is finger tight page 28 6 Trigger gun while installing the fluid nozzle 7 with the multi tool 37 Tighten until the fluid nozzle seats in the gun barrel 1 8 to 1 4 turn past hand tight 7 Install the air cap 9 and retaining ring 27 Make sure the u cup 27a is in place with the lips facing forward Replace Fluid Needle 1 Prepare the gun for repair page 27 2 Remove the air cap and nozzle page 28 3 Unscrew the fluid needle 29 Hold the packing rod end 26 to prevent it from turning FiG 13 4 Apply low strength purple Loctite or equivalent thread sealant to the fluid needle and packing rod threads Install the fluid needle finger tight Do not overtighten 5 Install the fluid nozzle and air cap page 28 312900C Remove Fluid Packing 1 Prepare the gun for repair page 27 2 Remove the air cap and fluid nozzle page 28 3 Remove the fluid needle page 28 4 Loosen the trigger screws 8 and trigger 30 See FIG 14 5 Remove the packing rod 26 using the multi tool 37 Clean all parts in non conductive solvent compati ble with the fluid being used such as xylol or min eral spirits Use of conductive solvents can cause the gun to malfunction 6 Check all parts for
39. place see page 28 Dirty or clogged fluid nozzle 7 Clean see page 28 Damaged fluid nozzle 7 Replace see page 28 Damaged fluid adjustment valve 25 Replace see page 34 Dirty air cap Misaligned air cap 9 and fluid Clean fluid buildup off air cap and nozzle 7 fluid nozzle seat see page 28 26 312900C Gun Repair Gun Repair Prepare the Gun for Repair e Check all possible remedies in Gun Operation Troubleshooting before disassembling the gun uly AN e Use a vise with padded jaws to prevent damage to plastic parts Electric Shock Hazard Installing and repairing this equipment requires access Lubricate the power supply seal 18a some pack to parts that may cause electric shock or other serious ing rod parts 26 and certain fluid fittings with injury if the work is not performed properly Do not dielectric grease 40 as specified in the text install or service this equipment unless you are trained 7 and qualified e Lightly lubricate o rings and seals with non silicone grease Order Part No 111265 Lubricant Do not over lubricate A e Only use genuine Graco parts Do not mix or use parts from other PRO Gun models Pressurized Equipment Hazard To reduce the risk of injury follow the Pressure Air Seal Repair Kit 244781 is available The kit must Relief procedure on page 19 before checking or be purchased separately Kit parts are marked wit
40. r ungrounded object See Grounding on page 14 Gun not grounded See Check Electrical Grounding on page 15 and Test Total Gun Resis tance on page 23 Operator gets shock from workpiece Workpiece not grounded Resistance must be 1 megohm or less Clean workpiece hangers ES indicator light is off when the gun is triggered 22 312900C Electrical Tests Electrical components inside the gun affect performance and safety The following procedures test the condition of the power supply 18 barrel 16 and charging probe 31 and electrical continuity between components Use megohmmeter Part No 241079 AA and an applied voltage of 500 V Connect the leads as shown Zw Fire Explosion and Electric Shock Hazard Megohmmeter Part No 241079 AA see FIG 8 through FIG 12 is not approved for use in a hazard ous areas To reduce the risk of sparking do not use the megohmmeter to check electrical grounding unless The gun has been removed from the hazardous area or all spraying devices in the hazardous area are turned off ventilation fans in the hazardous area are operating and there are no flammable vapors in the area such as open solvent containers or fumes from spraying Failure to follow this warning could cause fire explo sion and electric shock and result in serious injury and property damage Test Total Gun Resistance Measure r
41. r use in hazardous areas Paint Probe 722860 Use with 722886 Paint Resistance Meter to measure resistance of paint Not for use in hazardous areas Safety Warning Signs 180060 English Warning Sign FM Approved Avail able at no charge from Graco Electrostatic Conductive Gloves box of 12 117823 Small 117824 Medium 117825 Large 312900C Technical Data Category Maximum Working Fluid Pressure Maximum Working Air Pressure Maximum Fluid Operating Temperature Maximum voltage output Sound Pressure measured per ISO Standard 9216 Sound Pressure measured 1 m from gun Air inlet fitting left hand thread ssssss Fluid inlet fitting Gun Weight Gun Length with probe Paint Resistivity Wetted Parts eeseeeesssssesseeeeeenenee enne nnns 312900C Technical Data Data 100 psi 0 7 MPa 7 bar 100 psi 0 7 MPa 7 bar 120 F 49 C 60kV at 40 psi 0 28 MPa 2 8 bar 90 4 dB A at 100 psi 0 7 MPa 7 bar 105 4 dB A at 40 psi 0 28 MPa 2 8 bar 87 dB A at 100 psi 0 7 MPa 7 bar 199 dB A 1 4 npsm 3 8 18 npsm R 3 8 19 compound thread 247936 22 4 oz 634 g 247937 25 1 oz 712 g 10 6 in 24 6 cm lt 1 megohm cm Polyethylene Stainless Steel Nylon Acetal PTFE UHMWPE Fluoroelastomer PEEK Nickel Plate 43 Graco Warranty Graco warrants all equipment manufactured by
42. rayed and conductive objects in work area See Grounding instructions Only use grounded Graco conductive air supply hoses Check gun and hose resistance and electrical grounding daily Use and clean equipment only in well ventilated area Interlock the gun air supply to prevent operation unless ventilating fans are on Use cleaning solvents with highest possible flash point when flushing or cleaning equipment Always turn the electrostatics off when flushing cleaning or servicing equipment If there is static sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem e Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc e Do not plug or unplug power cords or turn lights on or off when flammable fumes are present e Keep work area free of debris including solvent rags and gasoline e Keep a working fire extinguisher in the work area ELECTRIC SHOCK HAZARD This equipment must be grounded Improper grounding setup or usage of the system can cause electric shock Wy e Turn off air supply before servicing equipment w e All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations e Do not touch gun electrode when electrostatics are on e Do not expose to rain Store indoors A PRESSURIZED EQUIPMENT HAZARD Fluid from the gu
43. ternator pads 19e are in place Lubricate the power supply seal 18a with dielectric grease 40 Insert the power supply alternator assembly in the gun handle 17 Make sure the ground strips make contact with the handle On Smart Model only con nect the flexible circuit 59 to the socket at the top of the handle Push the 6 pin connector into the Socket to ensure it is properly connected 11 Install the barrel 16 page 31 Ensure the ground spring 53 is in place 12 Test gun resistance page 23 ti1505cx Fic 18 Power Supply 312900C Remove and Replace Turbine Alternator Replace turbine alternator bearings after 2000 hours of operation Order Part No 223688 Bearing Kit 1 Prepare gun for repair page 27 2 Remove the power supply alternator assembly page 32 3 Disconnect the alternator from the power supply page 32 4 Measure resistance between the two outer termi nals of the 3 wire connector GG it should be 2 5 3 5 ohms If outside this range replace the alter nator coil 5 Follow the bearing replacement procedure in the bearing kit manual 308034 6 Install the alternator on the power supply page 32 7 Install the power supply alternator assembly page 32 Fig 19 Fan Air Adjustment Valve 312900C Gun Repair Repair Fan Air Adjustment Valve 1 2 Prepare the gun for service page 27 Place a wrench on the flats of the valve assembly 20 and unscrew
44. the conductive contact in the center of the power supply seal FF See Fic 11 The resistance should be 55 70 megohms If out side this range replace the power supply If in range proceed to the next test AA e EE L gems FF EE f i ti1599a Se Fig 11 Test Power Supply Resistance 24 Test Barrel Resistance Insert a conductive rod GG into the gun barrel removed for the power supply test and against the metal contact HH in the front of the barrel Measure the resistance between the conductive rod GG and the charging probe socket CC See FIG 12 The resistance should be 15 30 megohms If the resistance is outside the range replace barrel If resistance is in range reassemble the gun and test the gun resistance If you still have problems refer to Gun Repair on page 27 for other possible causes of poor perfor mance or contact your Graco distributor ti12821 Fig 12 Test Barrel Resistance 312900C Spray Pattern Troubleshooting WE A Spray Pattern Troubleshooting uo Electric Shock Hazard Installing and servicing this equipment requires access to parts which may cause an electric shock or other serious injury if the work is not performed prop erly Do not install or repair this equipment unless you are trained and qualified Pressurized Equipment Haz
45. turer 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 directly 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 la suite de ou en rapport directement ou indirectement avec les procedures 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 This manual contains
46. wear or damage and replace if necessary 312900C Fig 14 Remove Fluid Packing Gun Repair TI1549A 29 Gun Repair Repair Packing Rod You may replace the packing rod as individual parts or as an assembly The assembly is pre adjusted at the factory Before installing the fluid packing rod into the gun barrel make sure the internal surfaces of the barrel are clean Remove any residue with a soft brush or cloth Check the inside of the barrel for marks from high voltage arcing If marks are present replace the barrel To assemble the individual parts 1 Place the packing nut 26g and seal 26f1 on the fluid rod 26a Flats on the packing nut must face the back of the fluid rod The seal o ring must face away from the packing nut See FIG 15 2 Fill the inner cavity of the spacer 26e1 with dielec tric grease 40 Place the spacer on the fluid rod 26a in the direction shown Generously apply dielectric grease to the outside of the spacer 3 Place the rod packing 26d packing spreader 26ct and housing 26b on the packing rod 26h Fig 15 Packing Rod 30 4 Lightly tighten the packing nut 26g The packing nut is properly tightened when there is 3 Ib 13 3 N of drag force when sliding the packing housing 26b assembly along the rod Tighten or loosen the pack ing nut as needed 5 Install the o ring 26hT on the outside of housing 26f Lubricate the o ring with non silicone greas

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