Graco 3A0420T 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 procedure on page 30, which includes flushing, if service time may exceed pot life time, before servicing fluid components, and before transporting system 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.Stop the pumps near the bottom of their stroke. Fol- low Shutdown, page 30.

2.Disconnect all hoses from the pump assembly.

3.If hoppers are installed, disconnect the hopper fluid lines from the pump fluid inlet. See Hoppers, page 40.

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 30.

2.If hoppers are installed, remove the hopper and hopper bracket from the cart. See Hoppers, page 40.

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

r_258914_3a0420a_5a

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 50-60 ft-lb (68-81 N•m).

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 Over Pressure Protection must be used, see Bare Proportioning Pump PackagesBuilding systems with bare proportioning pump PackagesMounting Components for Component IdentificationMain Air Controls Fluid Control AssemblyAir Controls Solvent Flush Pump Kit 262393 optionalPump Key Air Line Fluid Line AccessoriesFlush Before Using Equipment Optional AccessoriesGrounding 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 RestrictorUse Optional Solvent Pump Follow Pressure Relief Procedure,Flush Mixed Material Flush Mix Manifold, Hose, and Spray GunGuidelines ProcedurePark ShutdownSystem Verification Maintenance Problem Cause Solution TroubleshootingResin Pump Pump TroubleshootingHardener Pump Falling Trouble Area Resin Pump LeakageRepair Pump AssemblyRemove Pump Assembly Remove Displacement PumpReplace System Air Regulator Replace Air Control AssemblyRemove Motor Replace Air Filter ElementAir Flow Air Control AssemblyReplace Over Pressure Relief Valves Mix Manifold AssemblyFluid Circulation Manifold with Over Pressure Relief Valves Pressure Color Psi MPa, bar Use with Fluid Circulation Manifold Replacement GuideCirculation Target Opening Manifold ValveOptional 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 ControlsManifold to also fit Series a XP Proportioners with Assembly 262784 XP35 262783 XP50 262806 XP70Fluid Circulation Manifold with Over Pressure Relief Valve Part Description Qty RefRecirculation/Overpressure valve see Recommended Spare PartsPump Repair Kits Pump Filter O-rings packsAcceptable 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