Graco 3A2495C important safety instructions Maintenance, Flushing

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Maintenance

Maintenance

Flushing

Flush before changing fluids, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.

Flush at the lowest pressure possible. Check connectors for leaks and tighten as necessary.

Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts.

To reduce the risk of fire, explosion, or electric shock, turn OFF (O) the ES On-Off switch before flushing the gun.

NOTICE

Do not use methylene chloride as a flushing or cleaning solvent with this gun as it will damage nylon components.

1.Turn OFF (O) the ES On-Off switch.

2.Follow the Pressure Relief Procedure, page 27.

3.Remove and clean the air cap and spray tip.

4.Change the fluid source to solvent, or disconnect the fluid line and connect a solvent supply line to the gun.

5.Point the gun into a grounded metal pail. Flush until clean solvent flows from the gun.

6.Follow the Pressure Relief Procedure, page 27. Engage the trigger lock.

7.Shut off or disconnect the solvent line.

8.Align the spray tip tab with the groove in the air cap. Install the tip.

9.Reinstall the air cap, tip guard, and retaining ring.

10.Hang the gun from its hook, with the nozzle pointing down.

11.When ready to spray again, reconnect the fluid supply line. Follow the Gun Setup Checklist, page 18.

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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