Graco 309295N important safety instructions Introduction, How the Electrostatic AA Spray Gun Works

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Introduction

Introduction

How the Electrostatic AA Spray Gun Works

WARNING

Skin Injection Hazard

Remember, this is not an air spray gun. For your safety, read and follow all Warn- ings in this manual.

The air-assisted spray gun combines airless and air spraying concepts. The spray tip shapes the fluid into a fan pattern, as does a conventional airless spray tip. Air from the air cap further atomizes the fluid and completes the atomization of the fluid tails to produce a uniform pattern.

As the gun is triggered, part of the regulated air oper- ates 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 voltage current to the gun’s electrode.

The regulated air that is directed to the air cap can be further controlled using the gun’s atomizing air adjust- ment valve. This valve can be used to restrict air flow to the air cap while maintaining sufficient air flow to the tur- bine.The atomizing air adjustment valve does not control pattern width. To change pattern width, a new tip size must be used.

The high working fluid pressure of this gun provides the power needed to atomize higher solids materials.

The gun’s internal power supply provides high voltage current. The fluid is electrostatically charged as it passes the electrode. The charged fluid is attracted to the grounded workpiece, wrapping around and evenly coating all surfaces.

NOTE: For airless atomization, if desired, turn the gun’s atomizing air adjustment valve completely off. Closing this valve does not affect turbine operation.

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Contents Important Safety Instructions 309295NII 2 G EEx 0.24mJ Smart Model Table of Contents List of Models Fire, Explosion, and Electric Shock Hazard Skin Injection Hazard Toxic Fluid HazardEquipment Misuse Hazard Introduction How the Electrostatic AA Spray Gun WorksGun Overview Standard GunSmart Gun Ventilate the Spray Booth InstallationInstall the System Flammable or Toxic Vapor HazardNon-Hazardous Area Typical Installation Key Hazardous AreaElectric Shock Hazard Connect the Air LineConnect the Exhaust Tube Supply HoseConnect the Fluid Line Filter the FluidSelect a Spray Tip Grounding Earth ground. See Check Electrical GroundingCheck Electrical Grounding Check Gun GroundingCheck Fluid Resistivity Check Fluid ViscosityLow Voltage Adjustment Smart Guns Only Low Voltage AdjustmentOperation Maintenance 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 C itemsRef. No Atomizing Air Adjustment Valve Ref. No AlternatorRef. No ES ON/OFF Valve Description Qty AIR CAPPlug Adjustment valve 20, and ES ON/OFF valve 53 RefAIR CAP Assembly 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 InformationToll Free

309295N specifications

The Graco 309295N is a versatile and highly efficient airless paint sprayer designed for both professionals and DIY enthusiasts. Renowned for its robust performance, this model is ideal for projects ranging from small touch-ups to large-scale commercial applications. Its user-friendly features and advanced technologies make it an indispensable tool for achieving a flawless finish every time.

One of the standout features of the Graco 309295N is its reliable pump system. This sprayer is equipped with a high-efficiency piston pump that delivers consistent pressure and allows for smooth operation. It can handle a wide variety of materials, including latex and oil-based paints, stains, and sealants, providing exceptional versatility for different projects.

The sprayer boasts an adjustable pressure control, which allows users to customize the spray pattern and flow rate according to their specific needs. This feature is especially useful for achieving detailed work in tight spaces as well as covering larger surfaces, ensuring a professional-looking finish without the need for excessive over-spraying.

The Graco 309295N also incorporates a durable and lightweight design, making it easy to maneuver during use. Its portable nature means that it can easily be transported from one job site to another, ensuring convenience for contractors on the go.

Additionally, the unit features an easy-to-use power flush system that simplifies the cleaning process. By conveniently connecting a garden hose, users can flush out the system after each use, significantly reducing cleanup time and allowing for quick transitions between projects.

This model is also compatible with Graco's range of quality spray tips, offering further customization and flexibility in spray patterns. Users can easily switch out tips to achieve different finishes, whether they require a fine mist for delicate applications or a wider spray for larger areas.

In summary, the Graco 309295N is a powerful airless paint sprayer that combines advanced technology with user-friendly features, making it an excellent choice for anyone looking to tackle painting projects efficiently. Its reliable performance, adjustable pressure settings, ease of cleaning, and compatibility with diverse materials and tips ensures that users can achieve flawless results with every application.
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