Graco Inc 218-745 manual Maintenance, Daily Care and Cleaning, Flush the Spray Gun, GUN in Solvent

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MAINTENANCE

Daily Care and Cleaning

CAUTION

Clean all parts with a non±conductive solvent, compatible with the fluid being sprayed. Conduc- tive solvents can cause the gun to malfunction.

Do not use any cleaning method which may al- low solvent into the gun air passages. Solvent left in the gun passages could result in a poor qual- ity paint finish and may draw current and reduce the electrostatic effect. Point the gun down while cleaning to prevent dirty solvent from running back into the air passages. NEVER IMMERSE THE

GUN IN SOLVENT.

WARNING

For your safety, always follow the Pressure Relief Procedure Warning on page 9 when shutting off the system, when you stop spraying, and before checking, servicing, installing, cleaning or chang- ing any part in the system.

1.Clean the fluid and air line filters daily.

2.Check all of the work hangers for build-up of material; clean them, if necessary.

3.All loose or ungrounded objects must be removed from the spray booth.

4.Clean the outside of the gun daily with a soft cloth dampened in a compatible solvent.

5.Flush the spray gun before changing fluids or colors and whenever you are done operating the gun. See Flush the Spray Gun.

6.Check the electrode wire. Straighten if bent, and re- place if broken or damaged. See Electrode Replacement.

7.Clean the air cap and spray nozzle daily, minimum; some applications require more frequent cleaning. Replace the spray nozzle and air cap if they are dam- aged. See To Clean or Change Air Cap and Fluid

Nozzle.

Flush the Spray Gun

WARNING

To reduce the risk of fire or explosion and serious bodily injury, the turbine air (electrostatics) must be off before flushing.

1.Follow the Pressure Relief Procedure Warning on page 9.

2.Disconnect and plug the fluid line.

3.Connect the solvent supply to the gun.

4.Flush the gun with solvent until it is clean.

5.Follow the Pressure Relief Procedure Warning, then disconnect the solvent supply.

6.Reconnect the fluid supply line.

8. Actuate the gun until it is clear of solvent.

 

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Contents This manual contains Important Automatic MID-RANGE ElectrostaticRev P Part Number 218±745, Series B  Terms Table of ContentsHazardous Fluid Hazard Hose SafetyEquipment Misuse Hazard HOW the Electrostatic AIR Spray GUN Works Flushing and Cleaning SafetyVentilate the Spray Booth Fire or Explosion HazardHazardous Area Typical InstallationVentilate the Spray Booth NON±HAZARDOUS Area KEYMount the Gun InstallationCheck the Electrical Grounding Installing Optional Remote Fan Air AdapterSpraying Operation Operating ChecklistOperation Filter the FluidAccessories Adjust the Spray PatternGUN in Solvent MaintenanceDaily Care and Cleaning Flush the Spray GunEquipment needed To Clean or Change Air Cap and Fluid NozzleProblem Cause Solution Improper Spray Pattern Spray Pattern Troubleshooting ChartProblem Cause Solution GUN Operation Troubleshooting ChartSee Check the Electrical Grounding Electrical Troubleshooting ChartTest Gun Resistance Test Power Supply ResistanceElectrical Tests Test Resistor Stud Resistance Electrode Replacement ServiceGun Disassembly Gun Assembly NoteTo install the resistor stud Resistor Stud Replacement66b Fluid Needle Packing ReplacementBarrel Removal Service Power Cartridge Replacement Turbine Alternator RemovalFan Air Valve Replacement Piston Removal and Repair Disc Regulator ORing Replacement Detail a Ref No Power CartridgeRef No 66, Tool Kit Old/New Style Resistor Stud and Electrode Parts ListDescription Qty KitsAssembly Changed Status No. Part No Name Technical DataService Information HOW to Order Replacement PartsAIR Hose Adapter 185±493 AccessoriesHigh Volume AIR Regulator 206±199 Grounded AIR Supply HoseElectrostatic System 231±036 Remote Switch & Signal Light 728±386 Control Panel 218±394Filter AIR or Paint 202±271 Electrostatic System 231±035To you 1±800±328±0211 Toll Free Graco Warranty and DisclaimersWarranty Important Phone Numbers