Graco Inc 24C934, 313872B, 257999 Solenoid Valve, 26-3.39 Nm. See Component Identification on

Page 38

Repair

Solenoid Valve

1.Follow Pressure Relief Procedure on page 22.

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

AD

AC

TI14463a

3.Disconnect electronic cables from solenoid valve and handle (if installed).

4.Use 5/32 in. allen wrench to remove handle mount- ing plate screws. Remove handle mounting plate and handle. See Component Identification on page 16.

5.Use Phillips screwdriver to remove solenoid valve. Inspect and replace if necessary. Inspect gasket on bottom of solenoid valve and replace if necessary. See Component Identification on page 16.

6.Use a 9/64 in. allen wrench to remove the solenoid valve mounting plate and gasket. Inspect gasket and replace if necessary. See Component Identifi- cation on page 16.

7.Assemble in reverse order. Torque fluid manifold bolt to 20-30 in-lb (2.26-3.39 N•m). Torque screws connecting handle to body to 20-30 in-lb

(2.26-3.39 N•m). See Component Identification on page 16.

38

313872B

Image 38

Contents Important Safety Instructions EP GunContents Related Manuals Orifice Flow Area Ratio Chart ModelsFixed Orifice Flowrate Data EP Fixed Orifice Flow 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 Changing Materials Red and B Blue ComponentsGrounding Piston Safety LockThroat Seal Liquid Trigger LockLoss of Air Pressure Hook SupportHook Support 313872B Component Identification KeyCutaway 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 Follow Pressure Relief Procedure, Optional Hose PositionPressure Relief Procedure Short Term Shutdown Perform Pressure Relief Procedure onShutdown Long Term ShutdownLubrication MaintenanceSupplied Tool Kit Bleed Throat Seal Liquid CartridgeClean Outside of Gun Flush 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 Replace Mix Chamber and Front Seal Perform Replace Throat Seal Liquid Cartridge,Replace Throat Seal Liquid Cartridge RepairTools Required Perform Bleed Throat Seal Liquid Cartridge pro- cedure, see Perform Pressure Relief Procedure, Remove Front EndDisassemble Front End Assemble Front End Pistons and Bulkhead See Attach Front End procedure Attach Front End Access Pistons Bulkhead Shaft Purge Rod Solenoid Valve 26-3.39 Nm. See Component Identification onTroubleshooting Problem Cause SolutionProblem Cause Solution Electrical Diagram Parts Model 257999 ShownOrifice, Auto Hand-Held RingOrifice, 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 Complete O-ring Placement Guide Ref PartAccessories 248299 5.0 gal liter Pail Solvent Flush Canister KitSolvent Flush Pail Kit Technical Data Models without Handle 6.4 lb 2.9 kgDimensions Ref Dimension, in. mmTechnical Data 313872B Graco Standard Warranty Graco Information