Graco Inc TI14450a, 313872B, 257999, 24C934, 24C932 Important Two-Component Material Information

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Important Two-Component Material Information

Important Two-Component Material Information

Isocyanate Conditions

Spraying or dispensing materials containing isocya- nates creates potentially harmful mists, vapors, and atomized particulates.

Read material manufacturer’s warnings and material MSDS to know specific hazards and precautions related to isocyanates.

Prevent inhalation of isocyanate mists, vapors, and atomized particulates by providing sufficient ventila- tion in the work area. If sufficient ventilation is not available, a supplied-air respirator is required for everyone in the work area.

To prevent contact with isocyanates, appropriate per- sonal protective equipment, including chemically impermeable gloves, boots, aprons, and goggles, is also required for everyone in the work area.

Material Self-ignition

Some materials may become self-igniting if applied too thickly. Read material manufacturer’s warnings and material MSDS.

Moisture Sensitivity of

Isocyanates

Isocyanates (ISO) are catalysts used in two component foam and polyurea coatings. ISO will react with moisture (such as humidity) to form small, hard, abrasive crystals, which become suspended in the fluid. Eventually a film will form on the surface and the ISO will begin to gel, increasing in viscosity. If used, this partially cured ISO will reduce performance and the life of all wetted parts.

NOTE: The amount of film formation and rate of crystal- lization varies depending on the blend of ISO, the humidity, and the temperature.

To prevent exposing ISO to moisture:

•Always use a sealed container with a desiccant dryer in the vent, or a nitrogen atmosphere. Never store ISO in an open container.

•Keep the ISO lube pump reservoir (if installed) filled with Graco Throat Seal Liquid™ (TSL™), Part 206995. The lubricant creates a barrier between the ISO and the atmosphere.

•Use moisture-proof hoses specifically designed for ISO, such as those supplied with your system.

•Never use reclaimed solvents, which may contain moisture. Always keep solvent containers closed when not in use.

•Never use solvent on one side if it has been contam- inated from the other side.

•Always lubricate threaded parts with ISO pump oil or grease when reassembling.

Keep Components A and B Separate

Cross-contamination can result in cured material in fluid lines which could cause serious injury or dam- age equipment. To prevent cross-contamination of the equipment’s wetted parts, never interchange component A (isocyanate) and component B (resin) parts.

Foam Resins with 245 fa Blowing Agents

Some foam blowing agents will froth at temperatures above 90°F (33°C) when not under pressure, especially if agitated. To reduce frothing, minimize preheating in a circulation system.

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 MaterialsTrigger Lock Piston Safety LockThroat Seal Liquid GroundingHook 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 Long Term Shutdown Perform Pressure Relief Procedure onShutdown Short Term ShutdownBleed Throat Seal Liquid Cartridge MaintenanceSupplied Tool Kit LubricationFlush 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
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