Graco 3A0420T Side Mix Manifold Restriction, To Adjust the Restrictor

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B Side Mix Manifold Restriction

B Side Mix Manifold Restriction

The B side restrictor (AJ) controls “lead/lag” ratio errors of the A and B flow into the static mixer tubes. These errors occur momentarily when the gun opens. The error is caused by differences in viscosity, volume, and hose expansion.

The restrictor is used primarily when the mix manifold is positioned remote from the machine with a short mix hose to the spray gun. It can also be used in the ratio check procedure.

AJ

AB

If the mix manifold (AB) is mounted on the machine, you do not need to adjust the restrictor. Leave open two turns minimum.

To Adjust the Restrictor:

Adjust the restrictor stem clockwise while spraying until you see a slight rise in the B side pressure gauge. The point where the pressure starts to rise is a good adjust- ment setting.

NOTE: Unless you are dispensing directly out of the mix manifold and mixer, this is an approximate adjustment.

See the mix manifold manual for more information.

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 Changing Materials B Component DesignationsEquipment Designations Overview UsageOver Pressure Protection 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 AssemblySolvent Flush Pump Kit 262393 optional Pump KeyAir Controls Air Line Fluid Line AccessoriesFlush Before Using Equipment Optional AccessoriesSetup LocationGrounding Hazardous location systems only Wire Systems with Explosion-Proof HeatersMotor Position Check Motor PositionChange Motor Position Connect Air Supply Connect Fluid Hose Bundles Remote Mix Manifold OnlyConnect Static Mixers, Gun, and Hoses 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 AssemblyMix Manifold Assembly Fluid Circulation Manifold with Over Pressure Relief ValvesReplace Over Pressure Relief Valves Pressure Color Psi MPa, bar Use with Fluid Circulation Manifold Replacement GuideCirculation Target Opening Manifold ValveOptional Solvent Pump HoppersService and Repair Optional Fluid HeatersReplace 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 Dimensions Top ViewSide 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