Graco-inc 244592 User Manual Page 1

Instructions/Parts ListAUTOMATIC ELECTROSTATIC AIR-ASSISTED SPRAY GUNPRO™ Auto Xs AATI1713A309298JENGPart No. 244592, Series A100 psi (0.7 MPa, 7 bar)

Installation 10 309298JFig. 2. Typical InstallationFig. 3. Optional Fiber Optic ConnectionTI1741AABCEFJKMNGNOTE: * The turbine air supply (TA) must be

Installation309298J 11Install the Air Line Accessories1. Install a bleed-type master air valve (L) on the main air line (W) to shut off all air to the

Installation 12 309298JInstall the Gun and Mounting Bracket1. Loosen the mounting bracket’s two set screws (103) and slide the bracket (102) onto a 1/

Installation309298J 13Connect the Air and Fluid LinesFIG. 3. shows a schematic of air and fluid line connec-tions, and FIG. 5. shows the manifold conn

Installation 14 309298JOptional Fiber Optic Cable ConnectionAn optional fiber optic fitting is shipped unassembled with the gun. If an ES (kV) display

Installation309298J 15GroundingThe following are minimum grounding requirements for a basic electrostatic system. Your system may include other equipm

Installation 16 309298JCheck Electrical Grounding1. Have a qualified electrician check the electrical grounding continuity of the spray gun and turbin

Installation309298J 17Check Fluid ResistivityGraco Part No. 722886 Resistance Meter and 722860 Probe are available as accessories to check that the re

Operation 18 309298JOperationPressure Relief Procedure1. Turn off all the air to the spray gun except the cylin-der air, which triggers the gun. 2. Tu

Operation309298J 19Select a Spray TipThe fluid output and pattern width depend on the size of the spray tip, the fluid viscosity, and the fluid pressu

2 309298JTable of ContentsSymbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Warning Symbol . . . . . . . . . . . . . . .

Operation 20 309298JSet the Atomization Fluid PressureAtomization fluid pressure will vary based on the viscos-ity of the fluid, flow rate desired, an

Operation309298J 21Adjust the Electrostatics1. Shut off the fluid supply.1. Trigger the gun, then turn on the turbine air (TA). See FIG. 12..2. Refer

Operation 22 309298JSpraying1. Apply a minimum of 50 psi (3.5 bar, 0.35 MPa) air pressure to the cylinder air fitting (CYL) to activate the on/off seq

Maintenance309298J 23MaintenanceDaily Care and CleaningCAUTION• Clean all parts with a non-conductive, compatible solvent. Conductive solvents can cau

Maintenance 24 309298JDaily Care and Cleaning, continued• Clean the fluid and air line filters daily.• Clean the outside of the gun daily with a soft

Maintenance309298J 25Flush the Spray Gun1. Relieve the pressure.2. Be sure the turbine air (TA) is turned off.3. Remove the retaining ring (1), tip gu

Maintenance 26 309298JClean the Spray GunEquipment Needed• soft bristle brush• compatible solventProcedure1. Relieve the pressure.2. Be sure the turbi

Maintenance309298J 27Fig. 17. Clean the Inline Fluid Filter8. Clean the retaining ring (1), tip guard (3), air cap (40), and spray tip (4) with a soft

Maintenance 28 309298JCheck for Fluid LeakageDuring operation, periodically check the manifold exhaust tube (YY) and both ends of the gun shroud (ZZ)

Electrical Tests309298J 29Electrical TestsElectrical components inside the gun affect performance and safety. The following procedures test the condit

Symbols309298J 3SymbolsWarning SymbolThis symbol alerts you to the possibility of serious injury or death if you do not follow the instructions.Cautio

Electrical Tests 30 309298JTest Power Supply Resistance1. Remove the power supply (12), page 46.2. Remove the turbine alternator (13) from the power s

Electrical Tests309298J 31Test Barrel Resistance1. Insert a conductive rod (B) into the gun barrel (removed for the power supply test) and against the

Troubleshooting 32 309298JTroubleshootingCheck all possible remedies in the Troubleshooting Chart before disassembling the gun.Spray Pattern Troublesh

Troubleshooting309298J 33Gun Operation TroubleshootingProblem Cause SolutionExcessive spray fog. Atomization air pressure too high. Decrease air press

Troubleshooting 34 309298JElectrical TroubleshootingProblem Cause SolutionPoor wrap. Turbine air is not turned on. Turn on. Booth exhaust velocity is

Repair309298J 35RepairPrepare the Gun for Service• Check all possible remedies in Troubleshooting before disassembling the gun. • Use a vise with padd

Repair 36 309298JRemove the Gun from the Manifold1. Remove the fluid supply hose from the fluid fitting (22).2. Loosen the bottom gun screw (31) until

Repair309298J 37Tip Guard, Air Cap, Spray Tip, or Seat Housing Replacement1. Prepare gun for service, page 35.2. Remove the retaining ring (1), tip gu

Repair 38 309298J5. Install the seat housing (5) with the tool (14) pro-vided. Tighten until snug, then 1/4 turn more; do not overtighten. See FIG. 24

Repair309298J 39Electrode Replacement1. Prepare the gun for service, page 35.2. Remove the air cap assembly, page 37.3. Pull the electrode (40a) out o

Warning 4 309298JWARNINGSkin Injection HazardSpray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause an extre

Repair 40 309298JFluid Tube ReplacementThere are no replaceable parts in the fluid tube assem-bly. Only remove when necessary.1. Prepare the gun for s

Repair309298J 41Fluid Needle Replacement1. Prepare the gun for service, page 35. 2. Remove the air cap assembly and seat housing, page 37.3. Remove th

Repair 42 309298JPiston Repair1. Prepare the gun for service, page 35.2. Remove the air cap, page 37. Remove the gun shroud (2).3. Remove the jam nut

Repair309298J 43Adjust the Actuator Arm1. Install the adjustment nut (30), actuator arm (29), and jam nut (28) onto the piston rod (34b). Note that th

Repair 44 309298JBarrel Removal1. Prepare the gun for service, page 35.2. Remove the air cap, page 37. Remove the gun shroud (2).3. Disconnect the flu

Repair309298J 45Barrel Installation1. Be sure the gasket (11) and grounding spring (25) are in place. Make sure the air holes are aligned properly. Re

Repair 46 309298JPower Supply Removal and Replacement• Inspect the gun body power supply cavity for dirt or moisture. Clean with a clean, dry rag.• Do

Fig. 36. Power SupplyTurbine Alternator Removal and ReplacementReplace turbine alternator bearings after 2000 hours of operation. Order Part No. 22368

Parts 48 309298JPartsPart No. 244592 PRO Auto Xs AA Electrostatic Gun, Series A5121934a354a4012a12b32234d13410111313e13a34c34f34e34g34b3027268282219 (

Parts309298J 49Part No. 244592 PRO Auto Xs AA Electrostatic Gun, Series A* Recommended spare parts. Keep on hand to reduce downtime.Replacement Warnin

Warning309298J 5WARNINGEquipment Misuse HazardEquipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result in a

Parts 50 309298JPart No. 244843 Manifold, Series A, for standard and high conductivity coatings† Included in repair kit 15D592.TI1582ATI1740A101101 (R

Spray Tip Selection Chart309298J 51Spray Tip Selection ChartPart No.Fan Width at10 in. (250 mm)in. (mm)Orifice Sizein. (mm)GG3107 2-4 (50-100) 0.007 (

Accessories 52 309298JAccessoriesGun AccessoriesElectrode Replacement Kit244917 Includes five electrodes.Inline Fluid Filters238561 100 mesh filter. S

Accessories309298J 53Paint Probe722860 Use with 722886 Paint Resistance Meter to measure resistance of paint.Not for use in hazardous areas.Safety War

Accessories 54 309298J

Technical Data309298J 55Technical DataLoctite® is a registered trademark of the Loctite Corporation.Category DataMaximum Working Fluid Pressure 3000 p

All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves th

Introduction 6 309298JIntroductionHow the Electrostatic AA Spray Gun WorksThe air-assisted spray gun combines airless and air spraying concepts. The s

Introduction309298J 7Changing the kV SettingThe gun’s full voltage setting is 85 kV. Three lower volt-age settings are possible by actuating the KV1 a

Introduction 8 309298JFig. 1. Gun OverviewKeyTI1739ATI1714ATI1713AManifold Back ViewCBDEFGHJKA2CYLEXHFOKV2P1TAKV1AA Air CapBSpray TipC Tip GuardD Ret

Installation309298J 9InstallationInstall the SystemFIG. 2. shows a typical electrostatic air-assisted spray system, and FIG. 3. shows possible system