Graco Inc 313872B, 257999, 24C934, 24C932, 24C933 Changing Materials, Red and B Blue Components

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Important Two-Component Material Information

Changing Materials

•When changing materials, flush the equipment mul- tiple times to ensure it is thoroughly clean.

•Always clean the fluid inlet strainers after flushing.

•Check with your material manufacturer for chemical compatibility.

•Most materials use ISO on the A side, but some use ISO on the B side.

•Epoxies often have amines on the B (hardener) side. Polyureas often have amines on the B (resin) side.

A (Red) and B (Blue)

Components

IMPORTANT!

Material suppliers can vary in how they refer to plural component materials.

Be aware that when standing in front of the manifold on proportioner:

•Component A (Red) is on the left side. The A (Red) side is intended for ISO, hardeners, and catalysts.

•Component B (Blue) is on the right side.The B (Blue) side is intended for polyols, resins, and bases.

For ratios higher than 1:1, the higher volume is typically the B (Blue) side.

•Most polyurethanes use ISO on the A (Red) side and polyol on the B (blue side, but some use ISO on the B (Blue) side.

•Epoxies often have amines on the B (hardener) side

•Polyureas often have amines on the B (resin) side.

•Silicones often have the catalyst on the B side.

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313872B

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Contents Important Safety Instructions EP GunContents Related Manuals Orifice Flow Area Ratio Chart ModelsFixed Orifice Flowrate Data EP Fixed Orifice Flow 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 Changing Materials Red and B Blue ComponentsPiston Safety Lock Throat Seal LiquidGrounding Trigger LockLoss of Air Pressure Hook SupportHook Support 313872B Component Identification KeyCutaway 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 Follow Pressure Relief Procedure, Optional Hose PositionPressure Relief Procedure Perform Pressure Relief Procedure on ShutdownShort Term Shutdown Long Term ShutdownMaintenance Supplied Tool KitLubrication Bleed Throat Seal Liquid CartridgeClean Outside of Gun Flush 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 Replace Mix Chamber and Front Seal Perform Replace Throat Seal Liquid Cartridge,Repair Tools RequiredReplace Throat Seal Liquid Cartridge Perform Bleed Throat Seal Liquid Cartridge pro- cedure, see Perform Pressure Relief Procedure, Remove Front EndDisassemble Front End Assemble Front EndSee Attach Front End procedure Attach Front EndPistons and Bulkhead 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 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 Complete O-ring Placement Guide Ref PartAccessories Solvent Flush Canister Kit Solvent Flush Pail Kit248299 5.0 gal liter Pail Technical Data Models without Handle 6.4 lb 2.9 kgDimensions Ref Dimension, in. mmTechnical Data 313872B Graco Standard Warranty Graco Information