Graco XP70 Repair, Remove Pump Assembly, Remove Displacement Pump

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Repair

Repair

To avoid serious injury due to the pump assembly falling, secure a hoist to the lift ring.

Follow Shutdown, page 28, if service time may exceed pot life time, before servicing fluid components, and before transporting sprayer to a service area.

Pump Assembly

The displacement pumps and air motor may be removed and serviced separately or the entire pump and motor assembly can be removed with a hoist.

Remove Pump Assembly

1.Cycle the yoke and pump rods near the bottom of their stroke. Follow Shutdown, page 28.

2.Disconnect all hoses from the pump assembly.

3.If hoppers are installed, disconnect the hoppers from the pump fluid inlet. See Hoppers, page 38.

NOTE: The hopper and hopper bracket do not need to be removed from the cart.

4.Remove screws (6) and washers (5) under the tie plate (101).

5.Use hoist to remove the pump assembly by the lift ring and carefully lift out of cart (1).

Remove Displacement Pump

1.Follow Shutdown, page 28.

2.If hoppers are installed, remove the hopper and hopper bracket from the cart. See Hoppers, page 38.

3.If feed pumps are installed, close the inlet ball valve. Remove inlet union (61).

4.Remove the spring clamp (130) and coupling (119 or 120).

106

135	105
	105
	130
	119

117

118

108

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5.Use a wrench to hold the tie rod (105, 106) flats to keep the rods from turning. Unscrew the nuts (108) from the tie rods and carefully remove the displace- ment pump (117 or 118) and lower straps (135).

6.Refer to the Xtreme Displacement Pump manual to service or repair the displacement pump.

7.Follow the steps in reverse order to reinstall the dis- placement pump.

NOTE: Torque nuts (108) to 50-60ft-lb (68-81 N•m).

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 optionalFlush Before Using Equipment Fluid Line AccessoriesOptional Accessories Air LineSetup 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 Without Heat Recirculate or Re-Prime After a Pump Runs DryWith Heat Heat FluidSpray Side Mix Manifold Restriction Flush Mixed Material Follow Pressure Relief Procedure,Flush Mix Manifold, Hose, and Spray Gun Use Optional Solvent PumpGuidelines ProcedurePark ShutdownSystem Verification Maintenance Problem Cause Solution TroubleshootingPump Troubleshooting Remove Pump Assembly Pump AssemblyRemove Displacement Pump RepairAir Controls Replace Air Control AssemblyRemove Air Motor Replace Air Filter ElementAir 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 Calculate Fluid Outlet Pressure Pump Performance ChartsCalculate Pump Air Flow/Consumption 11 or 21 Mix RatioPump Performance Charts Mix Ratio31 Mix Ratio MPa BarPsig PressureAccessories and Kits Acceptable For Use in Explosive AtmospheresNot Approved For Explosive Atmospheres Psi MPa, bar Psi MPa, psi Gpm ltr/min Technical DataFloor Mounting Dimensions Top VIew DimensionsTop VIew Side VIewBare Proportioner Mounting Hole Dimensions Graco Information Graco Standard Warranty