Graco XP70 important safety instructions Spray

Page 24

Spray

Spray

Wear gloves when using flush solvents and/or if fluid temperature exceeds 110°F (43°C).

NOTE: After the first day of spraying follow Pressure Relief Procedure, page 20, and tighten the throat packing nuts on both pumps.

1.If heaters are used, turn them on. To adjust the heater temperature, refer to the Viscon HP manual for instructions, and the Heat Fluid section, page 23. Circulate as necessary.

2.Close the circulation handle (AC) and the solvent flush valve (AD). Open the dual shutoff handle (AE).

AC

AE

AD

3.Adjust the main air regulator (CB) to 30 psi (0.21 MPa, 2.1 bar).

4.Remove tip. Disengage the trigger lock and trigger the gun into a grounded metal pail. Use a metal pail lid with a hole to dispense through to avoid splash- ing. Dispense flush solvent out of the mix hose until a well mixed coating flows from the gun.

TI1950a	TI1953a

5. Engage the trigger lock. Install the tip on the gun.

TI1949a

6.Adjust the main pump air regulator (CB) to the nec- essary spraying pressure and apply a coating to a test panel.

NOTE: Run system verification tests everyday. See page 29.

7.Excess pressure increases overspray and pump wear.

8.Check and record gauge readings frequently during operation. A change in gauge readings indicates a change in system performance.

NOTE:

•A pressure drop occurs during pump stroke changeover. It should be quick and synchro- nous.

•Flush the mix manifold as necessary during the day’s operation.

9.Follow Flush Mixed Material, page 26 when you are finished spraying or before potlife expires.

NOTE: Mixed material potlife or working time decreases with increased temperature. Pot life in the hose is much shorter than the dry time of the coating.

24

3A0420H

Image 24

Contents XP70 Plural-Component Sprayer Contents Related Manuals Manual DescriptionFire 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 Component Identification Mounting Components forFluid Control Assembly Main Air ControlsSolvent Flush Pump Kit 262393 optional Included with optional solvent flush pump kit KeyFluid Line Accessories Flush Before Using EquipmentOptional Accessories Air LineSetup LocationGrounding Wire Sprayers with Explosion-Proof Heaters Hazardous location sprayers onlyAir Motor Position Position Air MotorConnect Air Supply Connect Fluid Hose Bundles Remote OnlyConnect Static Mixers, Gun, and Hoses Pressure Relief Procedure Relieve a and B Fluid Pressure Prime Empty Sprayer Prime a and B FluidsPrime Solvent Flush Pump Recirculate or Re-Prime After a Pump Runs Dry Without HeatWith Heat Heat FluidSpray Side Mix Manifold Restriction Follow Pressure Relief Procedure, Flush Mixed MaterialFlush Mix Manifold, Hose, and Spray Gun Use Optional Solvent PumpProcedure GuidelinesShutdown ParkSystem Verification Maintenance Troubleshooting Problem Cause SolutionPump Troubleshooting Pump Assembly Remove Pump AssemblyRemove Displacement Pump RepairReplace Air Control Assembly Air ControlsRemove Air Motor Replace Air Filter ElementAir Control Assembly Air FlowMix Manifold Assembly Fluid Circulation ManifoldReplace Drain Valve Cartridges Repair Hoppers Solvent PumpService and Repair Optional Fluid HeatersReplace Parts Cart-Mounted XP70 Sprayer49 a 49 B 27, 28 32 27 Common Parts Part Description QtyParts Varying by Model with Hoppers Parts Varying by Model with No HoppersBare Proportioning Pump Package 122 106 105 135 117 108 101 138 139 140Varying Parts Ratio Description571100 571150 571200 571250 571300 571400 Qty 202 211 205 209 210 Ref. No. Part No. Description QtyFluid Manifold Part No. Description QtyRecommended Spare Parts Pump Repair KitsPump Filter O-rings packs Pump Performance Charts Calculate Fluid Outlet PressureCalculate Pump Air Flow/Consumption 11 or 21 Mix RatioPump Performance Charts Mix Ratio31 Mix Ratio Bar MPaPsig PressureAccessories and Kits Acceptable For Use in Explosive AtmospheresNot Approved For Explosive Atmospheres Technical Data Psi MPa, bar Psi MPa, psi Gpm ltr/minDimensions Floor Mounting Dimensions Top VIewTop VIew Side VIewBare Proportioner Mounting Hole Dimensions Graco Standard Warranty Graco Information