Graco PRO Xs4 AA manual Air Valve Repair

Page 36

Air Valve Repair

1.Prepare the gun for service, page 26.

2.Remove the barrel, page 32.

3.Remove the air valve cap (25) from the handle (17). Remove the spring (15). See Fig. 19.

CAUTION

Clean all parts in non-conductive solvent compatible with the fluid being used, such as xylol or mineral spirits. Use of conductive solvents can cause the gun to malfunction.

4.Remove the air valve (21) with a pliers. Inspect the seal (21a) and replace if damaged. Be sure the seal is pressed securely onto the valve so the outer cone is flat.

CAUTION

When removing the air valve (21) be careful not to damage the seat area.

Repair

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 air valve cap (25). Torque to 15-25 in-lb (1.7-2.8 N•m).

8.Install the barrel, page 32.

21 15 25 21a*

ti1527a

Fig. 19. Air Valve

309295

Image 36

Contents Instructions Parts List 309295 This manual contains important warnings and informationStandard Model Table of Contents Symbols List of ModelsModel Description Operation Fire, Explosion, and Electric Shock Hazard Fluid Injection Hazard Toxic Fluid HazardEquipment Misuse Hazard Introduction How the Electrostatic AA Spray Gun WorksGun Overview = on = OFFStandard Gun Smart GunInstallation Install the SystemVentilate the Spray Booth Flammable or Toxic Vapor HazardNon-Hazardous Area Hazardous AreaConnect the Air Line Connect the Exhaust TubeElectric Shock Hazard Connect the Fluid Line Select a Spray TipGrounding Check Electrical Grounding Check Gun GroundingCheck Fluid Resistivity Check Fluid ViscosityLow Voltage Adjustment Smart Guns Only OperationMaintenance Flush the Spray GunTi1465a Electrical Tests Test Gun ResistanceTest Power Supply Resistance Test Power Supply ResistanceTest Barrel Resistance Test Barrel ResistanceTroubleshooting Spray Pattern TroubleshootingProblem Cause Solution Gun Operation Troubleshooting Electrical Troubleshooting Pressure Relief Procedure RepairPrepare the Gun for Service Tools NeededTip Guard, Air Cap, Spray Tip, or Seat Housing Replacement Tip Guard, Air Cap, and Spray Tip Replace- mentRepair Electrode Replacement Electrode ReplacementFluid Tube Replacement Fluid Filter RemovalFluid Needle Replacement Spring Cap and SpringsBarrel Installation Barrel RemovalPower Supply Removal and Replacement Power Supply and Turbine AlternatorTurbine Alternator Removal and Replacement Atomizing Air Adjustment Valve Repair Atomizing Air Adjustment ValveAir Valve Repair Air ValveES ON/OFF Valve Repair ES ON/OFF ValveParts Part No 85 kV Electrostatic Gun, Series a itemsRef. No Atomizing Air Adjustment Valve Ref. No AlternatorRef. No ES ON/OFF Valve Description Qty AIR CAPIncluded in Air Seal Repair Kit Adjustment valve 20, and ES ON/OFF valve 53 RefRef. No Alternator Description Qty SWITCH, ES HI/LO Accessories Air Line AccessoriesFluid Line Accessories Gun Accessories Miscellaneous AccessoriesSpray Tip Selection Chart Fan Width at Orifice SizeTechnical Data Category DataGraco Standard Warranty Graco Phone NumbersToll Free

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.