Graco 3A0420T important safety instructions Guidelines, Procedure

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Empty and Flush Entire System (new system or end of job)

Empty and Flush Entire System (new system or end of job)

2. Engage the trigger lock. Turn the main pump air regulator (CB) fully counter-clockwise to shut off.

NOTE:

•If the system includes heaters and heated hose, turn them off and allow to cool before flushing. Do not turn on the heaters until the fluid lines are clear of solvent.

•Cover fluid containers and use the lowest possi- ble pressure when flushing to avoid splashing.

•Before color change or shutdown for storage, circulate the solvent at a higher flow rate and for a longer time. Change the solvent when it gets dirty.

•To only flush the fluid manifold, see Flush Mix Manifold, Hose, and Spray Gun, page 28.

•If the machine is inoperable, use drain plugs on the pump inlet fittings.

Guidelines

Flush new systems if the coating materials will be con- taminated by mineral oil.

Flushing will help prevent materials from settling or gell- ing in the pumps, lines, and valves. Flush the system when any of the following situations occur.

•anytime the system will not be used for more than one week (depending on materials used)

•if the materials used have fillers that will settle

•if using materials that are moisture sensitive

•before servicing

•if the machine is going into storage, replace the flush solvent with light oil. Never leave the equipment empty of any fluid.

Procedure

1.Follow Prime Empty System, page 23 and Flush Mix Manifold, Hose, and Spray Gun, page 28, as required.

CB

TI1949a

r_571100_3A0420A_11a-1

3.Move the recirculation lines (U) to separate fluid containers to pump remaining fluid out of the sys- tem.

U

4.Open the circulation handle (AC). See FIG. 2 on page 15.

5.Increase the main pump air regulator (CB) pressure to 20 psi (138 kPa, 1.38 bar).

6.Open the main air shutoff valve (CA).

CB

CA

NOTE: If the system does not start with static pres- sure, increase the air pressure by 5 psi (35 kPa,

0.35bar) increments. To avoid splashing, do not exceed 35 psi (241 kPa, 2.4 bar).

3A0420T

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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 Equipment Designations Changing MaterialsB Component Designations Over Pressure Protection OverviewUsage Initial System Setup Cart-Mounted Systems ModelsPump Volume Max Fluid Max Air Mix Gallon Building systems with bare proportioning pump Bare Proportioning Pump PackagesPackages Over Pressure Protection must be used, seeMounting Components for Component IdentificationMain Air Controls Fluid Control AssemblyAir Controls Solvent Flush Pump Kit 262393 optionalPump Key Flush Before Using Equipment Fluid Line AccessoriesOptional Accessories Air LineGrounding SetupLocation Hazardous location systems only Wire Systems with Explosion-Proof HeatersChange Motor Position Motor PositionCheck Motor Position Connect Static Mixers, Gun, and Hoses Connect Air SupplyConnect Fluid Hose Bundles Remote Mix Manifold Only 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 RestrictorFlush Mixed Material Follow Pressure Relief Procedure,Flush Mix Manifold, Hose, and Spray Gun Use Optional Solvent PumpGuidelines ProcedurePark ShutdownSystem Verification Maintenance Problem Cause Solution TroubleshootingHardener Pump Falling Pump TroubleshootingTrouble Area Resin Pump Leakage Resin PumpRemove Pump Assembly Pump AssemblyRemove Displacement Pump RepairRemove Motor Replace Air Control AssemblyReplace Air Filter Element Replace System Air RegulatorAir Flow Air Control AssemblyReplace Over Pressure Relief Valves Mix Manifold AssemblyFluid Circulation Manifold with Over Pressure Relief Valves Circulation Fluid Circulation Manifold Replacement GuideTarget Opening Manifold Valve Pressure Color Psi MPa, bar Use withOptional Solvent Pump HoppersReplace Service and RepairOptional Fluid Heaters 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 ControlsFluid Circulation Manifold with Over Pressure Relief Valve Assembly 262784 XP35 262783 XP50 262806 XP70Part Description Qty Ref Manifold to also fit Series a XP Proportioners withPump Repair Kits Recommended Spare PartsPump Filter O-rings packs Recirculation/Overpressure valve seeAcceptable For Use in Explosive Atmospheres Accessories and KitsNot Approved For Explosive Atmospheres Technical Data Side View DimensionsTop 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