Graco PRO Xs4 AA manual Fluid Needle Replacement, Spring Cap and Springs

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Fluid Needle Replacement

1.Prepare the gun for service, page 26.

2.Remove the air cap assembly and seat housing, page 27.

3.Remove the barrel (16), page 32.

4.Remove the trigger screws (8) and trigger (30).

5.Remove the spring cap (45) and the spring (26a) from the barrel. See Fig. 13.

Repair

CAUTION

To avoid damaging the seat housing and gun barrel, never overtighten the seat housing. Overtightening may result in improper fluid shutoff.

13.Install the seat housing and air cap, page 27.

14.Test gun resistance, page 19.

6.Place the 2 mm driver (44) in the back of the fluid needle assembly. Push the tool in and turn it coun- terclockwise about 12 full turns to unthread the nee- dle.

7.Insert the tool in the front of the gun and push the fluid needle assembly out the back of the barrel.

CAUTION

To avoid damaging the needle assembly, be sure the needle is completely unthreaded before pushing it out of the barrel.

TI1618A

Fig. 13. Spring Cap and Springs

55 45

26a

8

30

8.Install the fluid needle assembly in the gun barrel. Push in on the needle with the tool (44) and tighten. See Fig. 14.

9.Install the spring (26a).

10.Install the spring cap (45), making sure the ground- ing spring (55) is in place.

11.Install the trigger (30) and screws (8).

12.Install the barrel (16), page 32.

TI1526B

8

30

Fig. 14. Fluid Needle Replacement

309295

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Contents This manual contains important warnings and information Instructions Parts List 309295Standard Model Table of Contents List of Models SymbolsModel Description Operation 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 AreaConnect the Exhaust Tube Connect the Air LineElectric Shock Hazard 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 ResistanceSpray Pattern Troubleshooting TroubleshootingProblem Cause Solution 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 Alternator Ref. No Atomizing Air Adjustment ValveRef. No ES ON/OFF Valve 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 Air Line Accessories AccessoriesFluid Line Accessories Miscellaneous Accessories Gun AccessoriesFan Width at Orifice Size Spray Tip Selection ChartCategory Data Technical DataGraco Phone Numbers Graco Standard WarrantyToll 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.
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