Graco Inc TI14450a, 313872B, 257999, 24C934, 24C932, 24C933 important safety instructions Clean Orifice

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Maintenance

Clean Orifice

1.Follow Pressure Relief Procedure on page 22.

2.Use 5/16 in. nut driver (supplied) to remove orifices (C). See FIG. 4 on page 16.

NOTICE

To prevent cross-contamination of the orifices do not interchange A component and B component parts. The A component orifice is marked with an A.

NOTE: The cap is held in place with reverse threads.

3.Remove cap (26) from orifice (25). See Parts on page 42.

4.Remove needle (60) from orifice. Thoroughly inspect all o-rings and replace if necessary.

5.If necessary, use drill bit that is the same size as the orifice to drill out the orifice. Orifice size is marked on the orifice.

6.Use Fusion grease to liberally lubricate all o-rings.

7.Reassemble in reverse order. Torque orifice body into orifice cap to 60-70 in-lb (6.78-7.91 N•m). Torque orifices into fluid housing to 20-30 in-lb (2.26-3.39 N•m).

313872B

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Contents EP Gun Important Safety InstructionsContents Related Manuals Models Orifice Flow Area Ratio ChartEP Fixed Orifice Flow Data Fixed Orifice Flowrate DataFlowrate gpm Variable Orifice Flowrate DataOrifice Diameter Variable Orifice Flowrate Data 1500 PSI Variable Orifice Flowrate Data 2000 PSI Toxic Fluid or Fumes Hazard Fire and Explosion Hazard Important Two-Component Material Information Red and B Blue Components Changing MaterialsThroat Seal Liquid Piston Safety LockGrounding Trigger LockHook Support Loss of Air PressureHook Support 313872B Key Component IdentificationCutaway View Gun Detriggered Theory of OperationGun Triggered Fluid Pouring Setup Order to increase the pressure, turn the needle clockwise Adjust OrificesPerform Bleed Throat Seal Liquid Cartridge pro- cedure. See Optional Hose Position Follow Pressure Relief Procedure,Pressure Relief Procedure Shutdown Perform Pressure Relief Procedure onShort Term Shutdown Long Term ShutdownSupplied Tool Kit MaintenanceLubrication Bleed Throat Seal Liquid CartridgeFlush Gun Clean Outside of GunFollow Pressure Relief Procedure Clean Breather PlugClean Fluid Manifold Clean Check Valves Remove Front End, see Clean Fluid Housing PassagesFollow Pressure Relief Procedure on Clean Orifice Perform Replace Throat Seal Liquid Cartridge, Replace Mix Chamber and Front SealReplace Throat Seal Liquid Cartridge RepairTools Required Perform Bleed Throat Seal Liquid Cartridge pro- cedure, see Remove Front End Perform Pressure Relief Procedure,Assemble Front End Disassemble Front EndPistons and Bulkhead See Attach Front End procedureAttach Front End Access Pistons Bulkhead Shaft Purge Rod 26-3.39 Nm. See Component Identification on Solenoid ValveProblem Cause Solution TroubleshootingProblem Cause Solution Electrical Diagram Model 257999 Shown PartsRing Orifice, Auto Hand-HeldOrifice, Auto Hand-Held Kits on KitsSee Orifice Orifice 24C751 Orifice Housing 24C756 Ring 24C805 24C815 Kits Kits Located inside back cap Model Iso Model Polyol Orifice Kit Orifice KitsImpingement Kit Type and Kit Number Kit Illustration Drill Bit KitsKit Drill Bit Qty Orifice Size Number Ref Part Complete O-ring Placement GuideAccessories 248299 5.0 gal liter Pail Solvent Flush Canister KitSolvent Flush Pail Kit Models without Handle 6.4 lb 2.9 kg Technical DataRef Dimension, in. mm DimensionsTechnical Data 313872B Graco Information Graco Standard Warranty