Graco Inc 24C932, 313872B, 257999, 24C934 Remove Front End, Perform Pressure Relief Procedure

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Remove Front End

NOTICE

Proper attachment of front end is critical. Do not operate gun if front end is loose or not snug against body. Improper attachment can cause slow leaks.

1.Perform Pressure Relief Procedure, page 22.

2.Flush Gun, see page 25.

3.Perform Bleed Throat Seal Liquid Cartridge pro- cedure on page 24 to bleed all fluid from cartridge or replace with empty cartridge. TSL will spill if any fluid remains in cartridge after this step.

4.Disconnect air quick coupler (AC). Use hex nut driver to remove fluid manifold (AD).

AD

AC

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5.Disconnect signal cable.

6.Rotate fluid housing (AK) 45 degrees counterclock- wise to disengage fluid housing slots.

AK

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Repair

7.Pull fluid housing away from gun body to remove. If fluid housing cannot be removed perform the follow- ing steps.

a.Attach air quick coupler.

b.Pull and release the trigger or press and release the red button on the solenoid valve.

c.Remove fluid housing.

d.Disconnect air quick coupler.

8.Disengage purge rod from ball socket in piston shaft then remove purge rod.

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9.Inspect fluid housing o-rings for wear or damage. Replace if necessary.

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 DataVariable Orifice Flowrate Data Orifice DiameterFlowrate gpm 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 Theory of Operation Gun Triggered Fluid PouringGun Detriggered Setup Adjust Orifices Perform Bleed Throat Seal Liquid Cartridge pro- cedure. SeeOrder to increase the pressure, turn the needle clockwise 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 GunClean Breather Plug Clean Fluid ManifoldFollow Pressure Relief Procedure Clean Check Valves Clean Fluid Housing Passages Follow Pressure Relief Procedure onRemove Front End, see Clean Orifice Perform Replace Throat Seal Liquid Cartridge, Replace Mix Chamber and Front SealRepair Tools RequiredReplace Throat Seal Liquid Cartridge Perform Bleed Throat Seal Liquid Cartridge pro- cedure, see Remove Front End Perform Pressure Relief Procedure,Assemble Front End Disassemble Front EndSee Attach Front End procedure Attach Front EndPistons and Bulkhead 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 See OrificeKits on Orifice 24C751 Orifice Housing 24C756 Ring 24C805 24C815 Kits Kits Located inside back cap Orifice Kits Impingement Kit Type and Kit NumberModel Iso Model Polyol Orifice Kit Drill Bit Kits Kit Drill Bit Qty Orifice Size NumberKit Illustration Ref Part Complete O-ring Placement GuideAccessories Solvent Flush Canister Kit Solvent Flush Pail Kit248299 5.0 gal liter Pail Models without Handle 6.4 lb 2.9 kg Technical DataRef Dimension, in. mm DimensionsTechnical Data 313872B Graco Information Graco Standard Warranty