Graco XP70 important safety instructions Maintenance

Page 30

Maintenance

Maintenance

Filters

Once a week check, clean, and replace (if needed) the following filters.

Both pump filters; see lower manual for instructions.

Main air inlet manifold filter; see Replace Air Filter Element, page 34.

Spray gun handle filter; see spray gun manual.

7.Clean the external surfaces only using a rag soaked in solvent that is compatible with the spray material and surfaces being cleaned.

8.Allow enough time for the solvent to dry before using the sprayer.

Recommended Spare Parts

Keep these spare parts on hand to reduce downtime. See Recommended Spare Parts, page 48.

Seals

Once a week, check and tighten throat seals on both pumps. See table for torque specifications. Be sure to follow the Pressure Relief Procedure, page 20, prior to tightening seals. There must be zero pressure on the pumps when adjusting.

Pump Size

Torque Specification

 

 

36cc-85cc

50-75 ft-lb (68-100 N•m)

 

 

115cc and 145 cc

100-125 ft-lb (135-170 N•m)

 

 

Cleaning Procedure

1.Ensure all equipment is grounded. See Grounding, page 16.

2.Ensure the area where the sprayer will be cleaned is well ventilated; and remove all ignition sources.

3.Turn off all heaters and allow equipment to cool.

4.Flush mixed material. See Flush Mixed Material, page 26.

5.Relive pressure. See Pressure Relief Procedure, page 20.

6.Shutdown the prayer and turn off all power. See Shutdown, page 28.

Change the Mix Ratio

In order to change the mix ratio, one or both pumps need to be replaced and the air motor needs to be re-positioned.

NOTE: Only Xtreme XP lower pumps come with a rod coupling.

1.Check the Varying Parts table on page 45 for the correct pump sizes.

2.Remove and replace pump. See page 33.

3.Adjust the position of the air motor. See page 18.

4.Change air pressure relief valve as required, depending on ratio. See air relief valve (64) in tables on page 43.

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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 KeyOptional Accessories Fluid Line AccessoriesFlush Before Using Equipment 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 PressurePrime Empty Sprayer Prime a and B FluidsPrime Solvent Flush Pump With Heat Recirculate or Re-Prime After a Pump Runs DryWithout Heat Heat FluidSpray Side Mix Manifold Restriction Flush Mix Manifold, Hose, and Spray Gun Follow Pressure Relief Procedure,Flush Mixed Material Use Optional Solvent PumpProcedure GuidelinesShutdown ParkSystem Verification Maintenance Troubleshooting Problem Cause SolutionPump Troubleshooting Remove Displacement Pump Pump AssemblyRemove Pump Assembly RepairRemove Air Motor Replace Air Control AssemblyAir Controls 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 Calculate Pump Air Flow/Consumption Pump Performance ChartsCalculate Fluid Outlet Pressure 11 or 21 Mix RatioPump Performance Charts Mix Ratio31 Mix Ratio Psig BarMPa PressureAccessories and Kits Acceptable For Use in Explosive AtmospheresNot Approved For Explosive Atmospheres Technical Data Psi MPa, bar Psi MPa, psi Gpm ltr/minTop VIew DimensionsFloor Mounting Dimensions Top VIew Side VIewBare Proportioner Mounting Hole Dimensions Graco Standard Warranty Graco Information