Graco XP70 important safety instructions Guidelines, Procedure

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

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

2. Engage the trigger lock. Turn the main pump air reg- ulator (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 26.

•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 sprayer 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 Sprayer, page 21 and Flush Mix Manifold, Hose, and Spray Gun, page 26, as required.

CB

TI1949a

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

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

CA

NOTE: If the sprayer does not start with static pres- sure, increase the air pressure by 5 psi (35 kPa, 0.35 bar) increments. To avoid splashing, do not exceed 35 psi (241 kPa, 2.4 bar).

3A0420H

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Contents XP70 Plural-Component Sprayer Contents Manual Description Related ManualsFire and Explosion Hazard Skin Injection Hazard Toxic Fluid or Fumes Hazard Important Two-Component Material Information Changing Materials B Component DesignationsMachine Left Machine Right Market Equipment Designations Overview UsageOver Pressure Protection Initial System Setup Models Cart-Mounted XP70 SprayersBare Proportioning Pump Packages Mounting Components for Component IdentificationMain Air Controls Fluid Control AssemblyIncluded with optional solvent flush pump kit Key Solvent Flush Pump Kit 262393 optionalAir Line Fluid Line AccessoriesFlush Before Using Equipment Optional AccessoriesSetup LocationGrounding Hazardous location sprayers only Wire Sprayers with Explosion-Proof HeatersPosition Air Motor Air Motor PositionConnect Air Supply Connect Fluid Hose Bundles Remote OnlyConnect Static Mixers, Gun, and Hoses Relieve a and B Fluid Pressure Pressure Relief ProcedurePrime a and B Fluids Prime Empty SprayerPrime Solvent Flush Pump Heat Fluid Recirculate or Re-Prime After a Pump Runs DryWithout Heat With HeatSpray Side Mix Manifold Restriction Use Optional Solvent Pump Follow Pressure Relief Procedure,Flush Mixed Material Flush Mix Manifold, Hose, and Spray GunGuidelines ProcedurePark ShutdownSystem Verification Maintenance Problem Cause Solution TroubleshootingPump Troubleshooting Repair Pump AssemblyRemove Pump Assembly Remove Displacement PumpReplace Air Filter Element Replace Air Control AssemblyAir Controls Remove Air MotorAir Flow Air Control AssemblyMix Manifold Assembly Fluid Circulation ManifoldReplace Drain Valve Cartridges Repair Solvent Pump HoppersService and Repair Optional Fluid HeatersReplace Cart-Mounted XP70 Sprayer Parts49 a 49 B 27, 28 32 27 Part Description Qty Common PartsParts Varying by Model with No Hoppers Parts Varying by Model with Hoppers122 106 105 135 117 108 101 138 139 140 Bare Proportioning Pump PackageVarying Parts Ratio Description571100 571150 571200 571250 571300 571400 Qty Ref. No. Part No. Description Qty 202 211 205 209 210Part No. Description Qty Fluid ManifoldRecommended Spare Parts Pump Repair KitsPump Filter O-rings packs 11 or 21 Mix Ratio Pump Performance ChartsCalculate Fluid Outlet Pressure Calculate Pump Air Flow/ConsumptionPump Performance Charts Mix Ratio31 Mix Ratio Pressure BarMPa PsigAccessories and Kits Acceptable For Use in Explosive AtmospheresNot Approved For Explosive Atmospheres Psi MPa, bar Psi MPa, psi Gpm ltr/min Technical DataSide VIew DimensionsFloor Mounting Dimensions Top VIew Top VIewBare Proportioner Mounting Hole Dimensions Graco Information Graco Standard Warranty