Graco 3A0420T Mix Manifold Assembly, Fluid Circulation Manifold with Over Pressure Relief Valves

Page 38

Repair

Mix Manifold Assembly

1.Follow Pressure Relief Procedure, page 22.

2.Disconnect the fluid hose (25) and the flush hose from the mix manifold (36).

3.Loosen the union fittings (306) that connect to the mix manifold adapter fittings.

4.Remove the mix manifold assembly (36).

5.See mix manifold manual for service and repair instructions.

306

36

r_571101_3a0420a_38a

Fluid Circulation Manifold with Over Pressure Relief Valves

1

35

37

r_571101_3a0420a_39a

FIG. 11: Fluid Circulation Manifold

Replace Over Pressure Relief Valves

1.Flush before repairing equipment, if possible. See

Empty and Flush Entire System (new system or end of job), page 29.

2.Follow Pressure Relief Procedure, page 22.

3.Ensure handle (312) is in the down position. Remove the screws (313), jam nut (304), handles (311), handle rod (312), clips (318), and springs (320).

311

312 313

302

See FIG. 11.

1. Flush before repairing equipment, if possible. See

Empty and Flush Entire System (new system or

304

318 320

311

313

302

	end of job), page 29.
2.	Follow Pressure Relief Procedure, page 22.
3.	Disconnect all fluid hoses from the fluid circulation
	manifold (35).
4.	Remove the mix manifold if it is assembled to the
	fluid circulation manifold. See Mix Manifold
	Assembly for instructions.
5.	Loosen the two screws (37) that secure the manifold
	(35) to the cart (1).
6.	Remove the two screws (37) and fluid circulation
	manifold (35) from the cart (1).

302

304

320

318

r_258988_3a0420a_2b

4.Unscrew both over pressure relief valves (302) from the manifold.

NOTE: The correct over pressure relief valve must be used on all systems. Choose the correct color coded valve from the chart on page 39.

5.Apply blue threadlock to new over pressure relief valves (302) and install in the manifold. Torque to 28-32 ft-lb (38-43 N•m).

6.Place a spring (320) over each valve stem. Place a clip (318) in each valve stem groove to retain the springs.

38

3A0420T

Image 38

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 Models Cart-Mounted SystemsPump Volume Max Fluid Max Air Mix Gallon Packages Bare Proportioning Pump PackagesBuilding systems with bare proportioning pump Over Pressure Protection must be used, seeComponent Identification Mounting Components forFluid Control Assembly Main Air ControlsAir Controls Solvent Flush Pump Kit 262393 optionalPump Key Optional Accessories Fluid Line AccessoriesFlush Before Using Equipment Air LineGrounding SetupLocation Wire Systems with Explosion-Proof Heaters Hazardous location systems onlyChange Motor Position Motor PositionCheck Motor Position Connect Static Mixers, Gun, and Hoses Connect Air SupplyConnect Fluid Hose Bundles Remote Mix Manifold Only Pressure Relief Procedure Relieve a and B Fluid PressurePrime Empty System Prime a and B FluidsPrime Solvent Flush Pump Heat Fluid Follow Prime Empty System,Spray To Adjust the Restrictor Side Mix Manifold RestrictionFlush Mix Manifold, Hose, and Spray Gun Follow Pressure Relief Procedure,Flush Mixed Material Use Optional Solvent PumpProcedure GuidelinesShutdown ParkSystem Verification Maintenance Troubleshooting Problem Cause SolutionTrouble Area Resin Pump Leakage Pump TroubleshootingHardener Pump Falling Resin PumpRemove Displacement Pump Pump AssemblyRemove Pump Assembly RepairReplace Air Filter Element Replace Air Control AssemblyRemove Motor Replace System Air RegulatorAir Control Assembly Air FlowReplace Over Pressure Relief Valves Mix Manifold AssemblyFluid Circulation Manifold with Over Pressure Relief Valves Target Opening Manifold Valve Fluid Circulation Manifold Replacement GuideCirculation Pressure Color Psi MPa, bar Use withHoppers Optional Solvent PumpReplace Service and RepairOptional Fluid Heaters Parts Cart-Mounted SystemStandard Mix Manifold Models Quickset Mix Manifold Models Parts Common to All Systems Description Qty WasherParts 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 Bare Proportioning Pump Package Model 571100 shownParts Common to All Pump Packages Parts Varying by Pump PackageAir Controls Qty Ref. No. Part No. DescriptionPart Description Qty Ref Assembly 262784 XP35 262783 XP50 262806 XP70Fluid Circulation Manifold with Over Pressure Relief Valve Manifold to also fit Series a XP Proportioners withPump Filter O-rings packs Recommended Spare PartsPump Repair Kits Recirculation/Overpressure valve seeAccessories and Kits Acceptable For Use in Explosive AtmospheresNot 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 Floor Stand 24M281 Dimensions Hydraulic Unit DimensionsDimensions 3A0420T Graco Standard Warranty Graco Information