Graco 3A2495C important safety instructions Air Supply Line, Fluid Supply Line, Hose

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Installation

Air Supply Line

To reduce the risk of electric shock, the air supply hose must be electrically connected to a true earth ground. Use only Graco Grounded Air Supply

Hose.

1.See Fig. 10. Use the Graco Grounded Air Supply Hose (AH) to supply air to the gun. The gun air inlet fitting has a left-hand thread. The air supply hose ground wire (AG) must be connected to a true earth ground. Do not connect the air supply hose to the gun air inlet yet.

2.Install an air line filter/water separator (AF) on the gun air line to ensure a dry, clean air supply to the gun. Dirt and moisture can ruin the appearance of your finished workpiece and can cause the gun to malfunction.

To reduce the risk of serious injury due to component rupture, including skin injection, pump pressure must be limited by the pump air regulator. Do not rely on the gun fluid regulator to limit the fluid pressure to the gun.

The fluid supply pump must be prevented from producing a fluid pressure greater than the 3000 psi (21 MPa, 210 bar) Maximum Working Fluid Pressure of the gun. For example, the air supply pressure to a 30:1 ratio pump must not exceed 100 psi (0.7 MPa, 7 bar).

3.Install bleed-type air regulators (PR, GR) on the pump and gun air supply lines to control air pressure to the pump and gun.

Trapped air can cause the pump to cycle unexpectedly, which can result in serious injury, including skin injection and splashing fluid in the eyes or on the skin. Do not operate the equipment without the bleed-type air valve (BV) installed.

4.Install a bleed-type air valve (BV) on the pump air supply line. The bleed-type air valve (BV) is required in your system to shut off air to the pump and relieve air trapped between the valve and the pump after the air regulator is shut off. Install an additional bleed-type air valve on the main air line (MA) to isolate the accessories for servicing.

5.Install an air bleed valve (BV) on each gun air supply line to shut off air to the gun(s) and relieve air trapped between the valve and the gun after the air regulator is shut off.

Fluid Supply Line

1.Blow out the fluid line (FL) with air and flush it with solvent. Use solvent which is compatible with the fluid to be sprayed. Do not connect the fluid supply line to the gun fluid inlet yet.

2.Install a fluid pressure regulator (FR) on the fluid line to control fluid pressure to the gun.

3.Install a fluid filter (FF) near the pump outlet, to remove particles and sediment which could clog the spray nozzle.

NOTE: The gun includes an inline fluid filter for additional filtration.

To reduce the risk of serious injury, including skin injection and splashing fluid in the eyes or on the skin, do not operate equipment without the fluid drain valve (FD) installed.

4.The fluid drain valve (FD) is required in your system to assist in relieving fluid pressure in the displacement pump, hose, and gun. Triggering the gun to relieve pressure may not be sufficient. Install a drain valve close to the pump's fluid outlet.

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3A2495C

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Contents Important Safety Instructions InstructionsContents Smart Display Standard Display II 2 GFIRE, EXPLOSION, and Electric Shock Hazard Skin Injection Hazard Equipment Misuse Hazard Gun Overview How the Electrostatic AA Spray Gun WorksChart, page 62, for avail Setup Checklist,Description Purpose See Spray Tip SelectionOperating Mode Bar Graph Smart GunsError Display Key for Figs Description Purpose Description Purpose Diagnostic Mode Alternator Speed Hertz Screen Installation Ventilate the Spray BoothFluid Supply Line Air Supply LineHose Typical Installation Key Description NON-HAZARDOUS AreaGun Setup Gun Setup ChecklistGun Setup LED Indicator Colors Description Pressure DropGrounding Key to Figs Ground the Operator Ground the Gun Check Gun Electrical Grounding Flush Before Using Equipment Check Fluid ResistivityCheck Fluid Viscosity Fluid Resistivity Levels Megohms-cmPressure Relief Procedure OperationStartup ShutdownMaintenance FlushingClean the Gun Daily Maintenance Daily System Care Check Gun Electrical Grounding,Electrical Tests Test Gun ResistanceTest Power Supply Resistance Alternator Removal and Replacement,Test Gun Barrel Resistance Troubleshooting Spray Pattern TroubleshootingProblem Cause Solution Clean the Gun Daily,Gun Operation Troubleshooting Replacement, Power Supply RemovalReplacement, page 45 Test Gun Resistance,See Clean the Gun Daily, Replacement, page 52Prepare the Gun for Service RepairAir Cap, Spray Tip, and Fluid Seat Housing Replacement See Prepare the Gun for Service,Electrode Replacement See Test Gun Resistance,Fluid Filter Replacement Fluid Tube Removal and ReplacementGun Barrel Installation Gun Barrel RemovalFluid Needle Replacement Remove Cap and SpringsPower Supply Removal and Replacement See Prepare the Gun for Service, See Gun Barrel Removal,Alternator Removal and Replacement Alternator Fan Air Adjustment Valve Repair Fan Air Adjustment ValveAtomizing Air Adjustment Valve Repair ES On-Off Valve Repair See Gun Barrel Installation, Air Valve RepairSmart Module Replacement Smart ModuleAir Swivel and Exhaust Valve Replacement Air Inlet Fitting and Air Exhaust ValveStandard Air-Assisted Spray Gun Assembly PartsDescription Qty Smart Air-Assisted Spray Gun Assembly See Smart Module Assembly Alternator Assembly Part No N664 Alternator AssemblyES On-Off Valve Assembly Part No N632 ES On-Off Valve AssemblyFan Air Valve Assembly Part No N634 Fan Air Valve AssemblyAir Cap Assembly Smart Module Assembly Spray Tip Selection Chart AEM Fine Finish Spray TipsAEF Fine Finish Pre-Orifice Spray Tips Orifice Fluid OutputOz/min l/min 41 bar MPa Bar Spray TipRepair Kits, Related Manuals, and Accessories Gun AccessoriesSystem Accessories Test EquipmentOperator Accessories HosesDimensions Gun Model In. mm Weight, oz gTechnical Data Graco Pro Xp Warranty Graco Information