Graco 3A0420T important safety instructions 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 isocyanates 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 ventilation 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 personal 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 thick. Read material manufacturer’s warnings and material MSDS.

Keep Components A and B Separate

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

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 pump wetcup or 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.

•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 con- taminated from the other side.

•Always lubricate threaded parts with TSL or grease when reassembling.

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.

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Contents XP Proportioners Contents Related Manuals Fire and Explosion Hazard Skin Injection Hazard Toxic Fluid or Fumes Hazard Important Two-Component Material Information B Component Designations Changing MaterialsEquipment Designations Usage OverviewOver Pressure Protection Initial System Setup Cart-Mounted Systems ModelsPump Volume Max Fluid Max Air Mix Gallon Over Pressure Protection must be used, see Bare Proportioning Pump PackagesBuilding systems with bare proportioning pump PackagesMounting Components for Component IdentificationMain Air Controls Fluid Control AssemblyPump Key Solvent Flush Pump Kit 262393 optionalAir Controls Air Line Fluid Line AccessoriesFlush Before Using Equipment Optional AccessoriesLocation SetupGrounding Hazardous location systems only Wire Systems with Explosion-Proof HeatersCheck Motor Position Motor PositionChange Motor Position Connect Fluid Hose Bundles Remote Mix Manifold Only Connect Air SupplyConnect Static Mixers, Gun, and Hoses Relieve a and B Fluid Pressure Pressure Relief ProcedurePrime a and B Fluids Prime Empty SystemPrime Solvent Flush Pump Follow Prime Empty System, Heat FluidSpray Side Mix Manifold Restriction To Adjust the RestrictorUse Optional Solvent Pump Follow Pressure Relief Procedure,Flush Mixed Material Flush Mix Manifold, Hose, and Spray GunGuidelines ProcedurePark ShutdownSystem Verification Maintenance Problem Cause Solution TroubleshootingResin Pump Pump TroubleshootingHardener Pump Falling Trouble Area Resin Pump LeakageRepair Pump AssemblyRemove Pump Assembly Remove Displacement PumpReplace System Air Regulator Replace Air Control AssemblyRemove Motor Replace Air Filter ElementAir Flow Air Control AssemblyFluid Circulation Manifold with Over Pressure Relief Valves Mix Manifold AssemblyReplace Over Pressure Relief Valves Pressure Color Psi MPa, bar Use with Fluid Circulation Manifold Replacement GuideCirculation Target Opening Manifold ValveOptional Solvent Pump HoppersOptional Fluid Heaters Service and RepairReplace Cart-Mounted System PartsStandard Mix Manifold Models Quickset Mix Manifold Models Washer Parts Common to All Systems Description QtyParts Varying By Model XP35 Systems Ref Part Description Coupling 283101 283102 283201 283202 283301 283302 283401 283402 Parts Varying By Model XP70 Systems Part Description Model 571100 shown Bare Proportioning Pump PackageParts Varying by Pump Package Parts Common to All Pump PackagesQty Ref. No. Part No. Description Air ControlsManifold to also fit Series a XP Proportioners with Assembly 262784 XP35 262783 XP50 262806 XP70Fluid Circulation Manifold with Over Pressure Relief Valve Part Description Qty RefRecirculation/Overpressure valve see Recommended Spare PartsPump Repair Kits Pump Filter O-rings packsAcceptable For Use in Explosive Atmospheres Accessories and KitsNot Approved For Explosive Atmospheres Technical Data Top View DimensionsSide View Floor Mounting Dimensions, Top View Bare Proportioner Mounting Hole Dimensions Wall Mount Bracket 262812 Dimensions Hydraulic Unit Dimensions Floor Stand 24M281 DimensionsDimensions 3A0420T Graco Information Graco Standard Warranty
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