Graco 238892, 238894, 238890 important safety instructions Flushing

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Operation

Flushing

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

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

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

1.Record the pressure adjustment setting of the fluid regulator before flushing.

2.Shut off the pump and relieve fluid pressure in the system by triggering the gun and opening the back pressure regulator or other bypass valve.

3.Never exceed the maximum working pressure of the lowest rated system component. Remove the gauge if the flushing pressure will exceed the gauge range.

4.Open the fluid regulator fully.

a.Spring Operated Regulators Only: Open the fluid regulator by turning the adjusting screw

(10)fully clockwise.

b.Air Operated Regulator Only: Increase the air regulator setting to fully open the fluid regulator. You will have to reset the fluid regulator’s pressure setting after flushing.

5.Supply solvent to the system. Set pump to the lowest possible pressure, and start pump.

6.Flush until thoroughly clean.

7.Adjust the fluid regulator to the desired setting.

a.Spring Operated Regulators Only: Turn the adjustment screw (10) counterclockwise to return to the desired pressure setting.

b.Air Operated Regulator Only: Adjust the air regulator to return to the desired fluid pressure setting.

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Contents Instructions-Parts List Important Safety InstructionsModel 238892 List of Models Table of ContentsEquipment Misuse Hazard SymbolsSkin Injection Hazard 308647 Installation Grounding the System Pressure Relief ProcedureAdjusting the System Pressure Cleaning the RegulatorOperation Flushing Problem Cause Solution TroubleshootingService Kits ServiceInstalling the Air-Operated Conversion Kit Relieve the pressureReplacing the Fluid Diaphragms Replacing the Cartridge With EZ Flush gauge port plug With fluid pressure gauge Parts DrawingDescription Qty Parts ListModels 238893, 238894, 248090, For Models 238894 238893 With EZ Flush gauge port plug ModelRegulator Housing Technical Data Performance Chart KeyTest Conditions Page Model 244734 air operated Dimensional DrawingsGraco Standard Warranty Graco InformationToll Free