Graco PRO Xs4 AA manual Atomizing Air Adjustment Valve Repair

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Atomizing Air Adjustment Valve Repair

1.Prepare the gun for service, page 26.

2.Place a wrench on the flats of the valve assembly (20) and unscrew it from the handle (17).

NOTE: You may replace the valve as an assembly (go to step 9) or as individual parts (steps 3-9).

3.Remove the retaining ring (20a). See Fig. 18.

4.Turn the valve stem (20d) counterclockwise until it comes free from the valve housing (20c).

5.Remove the o-ring (20b).

20b*

20c

20a

Repair

6.Clean all parts and inspect for wear or damage.

NOTE: Use non-silicone grease, Part No. 111265. Do not over-lubricate.

7.When reassembling the atomizing air valve (20), lightly lubricate the valve threads and screw the stem (20d) fully into the housing (20c) until bot- tomed. Install the o-ring (20b*), lubricate, and unscrew the valve stem until the o-ring enters the housing.

8.Reassemble the retaining ring (20a). Unscrew the valve stem from the housing until it is stopped by the retaining ring.

9.Screw the valve assembly (20) into the gun handle, using a wrench on the flats of the housing. Torque to 15-25 in-lb (1.7-2.8 N•m).

20d

TI1487A

Fig. 18. Atomizing Air Adjustment Valve

309295

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Contents Standard Model Instructions Parts List 309295This manual contains important warnings and information Table of Contents Model Description Operation SymbolsList of Models Fire, Explosion, and Electric Shock Hazard Toxic Fluid Hazard Fluid Injection HazardEquipment Misuse Hazard How the Electrostatic AA Spray Gun Works IntroductionSmart Gun Gun Overview= on = OFF Standard GunFlammable or Toxic Vapor Hazard InstallationInstall the System Ventilate the Spray BoothHazardous Area Non-Hazardous AreaElectric Shock Hazard Connect the Air LineConnect the Exhaust Tube Select a Spray Tip Connect the Fluid LineGrounding Check Gun Grounding Check Electrical GroundingCheck Fluid Viscosity Check Fluid ResistivityOperation Low Voltage Adjustment Smart Guns OnlyFlush the Spray Gun MaintenanceTi1465a Test Gun Resistance Electrical TestsTest Power Supply Resistance Test Power Supply ResistanceTest Barrel Resistance Test Barrel ResistanceProblem Cause Solution TroubleshootingSpray Pattern Troubleshooting Gun Operation Troubleshooting Electrical Troubleshooting Repair Pressure Relief ProcedureTools Needed Prepare the Gun for ServiceTip Guard, Air Cap, and Spray Tip Replace- ment Tip Guard, Air Cap, Spray Tip, or Seat Housing ReplacementRepair Electrode Replacement Electrode ReplacementFluid Filter Removal Fluid Tube ReplacementSpring Cap and Springs Fluid Needle ReplacementBarrel Removal Barrel InstallationPower Supply and Turbine Alternator Power Supply Removal and ReplacementTurbine Alternator Removal and Replacement Atomizing Air Adjustment Valve Atomizing Air Adjustment Valve RepairAir Valve Air Valve RepairES ON/OFF Valve ES ON/OFF Valve RepairPart No 85 kV Electrostatic Gun, Series a items PartsRef. No ES ON/OFF Valve Ref. No Atomizing Air Adjustment ValveRef. No Alternator AIR CAP Description QtyIncluded in Air Seal Repair Kit 53 Ref Adjustment valve 20, and ES ON/OFF valveRef. No Alternator Description Qty SWITCH, ES HI/LO Fluid Line Accessories AccessoriesAir Line Accessories Miscellaneous Accessories Gun AccessoriesFan Width at Orifice Size Spray Tip Selection ChartCategory Data Technical DataToll Free Graco Standard WarrantyGraco Phone Numbers

PRO Xs4 AA specifications

The Graco PRO Xs4 AA is an advanced airless paint sprayer known for its superior performance and versatility, making it ideal for professionals and DIY enthusiasts alike. This sprayer is designed to handle a wide range of coatings, including latex, stains, and heavy-bodied materials, providing exceptional finish quality on various surfaces.

One of the standout features of the PRO Xs4 AA is its powerful TrueAirless technology, which ensures a consistent and even spray pattern. This technology allows users to achieve a professional finish without the need for thinning materials, saving time and effort. The sprayer is equipped with a robust 0.75 HP motor, delivering up to 0.40 GPM (gallons per minute) fluid output, making it suitable for medium to large-sized projects.

Another significant characteristic is the PRO Xs4's lightweight design, making it easy to transport and maneuver while working. Weighing only 34 pounds, it is simple to set up and operate, reducing fatigue during extended use. The unit features an adjustable pressure settings system, allowing users to control the flow rate according to their specific job requirements for optimal results.

The Graco PRO Xs4 AA also comes with the innovative Graco BlueLink technology, which provides real-time monitoring and diagnostics through a Bluetooth connection. This feature enables users to track their job performance, receive maintenance reminders, and access operational data directly from their smartphones, enhancing user experience and efficiency.

Additionally, the PRO Xs4 is equipped with a durable 515 spray tip, designed to create a fine finish while minimizing overspray. The inclusion of the FlexLiner bag system allows for quick color changes and easy cleanup, making it a truly user-friendly tool. The sprayer is also compatible with a variety of Graco accessories, allowing for customization and improved efficiency based on project needs.

With a maximum tip size of 0.017 inches, the PRO Xs4 is versatile enough to handle both fine and coarse coatings, making it a great option for a range of applications, from interior walls to exterior surfaces. The Graco PRO Xs4 AA combines cutting-edge technology with ease of use, making it an excellent choice for anyone looking to achieve professional-quality results in their painting projects.
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