Graco 312781E Purging, Operation Guidelines, Adjust gun atomizing air pressure as needed

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Operation

Purging

Follow the purging procedure in the proportioner system manual.

NOTES:

Purge before using equipment, which was tested with lightweight oil that could contaminate your material.

Purge before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.

Purge at the lowest pressure possible. Check con- nectors for leaks and tighten as necessary.

Use a cleaning fluid that is compatible with the fluid being dispensed and the equipment wetted parts.

NOTICE

Purge the sampling valves with solvent immediately after using them to keep material from hardening inside.

Operation

Operation Guidelines

Manifold operation is dependent on the system it is con- nected to. Follow the system operation instructions.

NOTE: After the system has been shut down for a period of time, it is normal for component solenoids and valves to cycle rapidly until system pressure is built back up when restarted.

Purge air from fluid lines when components are loaded.

Adjust fluid supply pressure if the fluid output is too low or too high.

Adjust flow rate with fluid supply pressure regula- tors (optional) or dispense valves. Flow rate should be the same at the spray gun regardless of whether component dispense valves are open. Pressure adjustments of each component will vary with fluid viscosity. Start with the same fluid pressures, then adjust as needed. See Mix Manifold Valve Set- tings, page 8.

Adjust gun atomizing air pressure as needed.

NOTE: Do not use the first 4-5 oz. (120-150 cc) of mate- rial as it may not be thoroughly mixed due to alarms while priming the system.

312781E

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Contents Fluid Mix Manifold Important Safety InstructionsRelated Manuals ContentsModels Fluid Connections InstallationFlush Before Using Equipment Air ConnectionsKey ProMix 3KS Fluid Station Key ProMix 2KS Fluid StationDVA2 KeyDVA3 behind Restrictor Sizes Size Code Orifice Size Setup the Fluid Manifold for Dynamic DosingOperation Guidelines Adjust gun atomizing air pressure as neededOperation PurgingWeekly MaintenanceMix Manifold Valve Settings Preventive Maintenance ScheduleUnbalanced Pressure TroubleshootingIsolate a Mixing Problem Common CausesRemove from the bottom RepairRemove the Integrator Mixer Remove the Restrictor ProMix 2KE, Dynamic Dosing onlyDispense Valve Cap Repair the Valves and Seats ProMix 2KS and ProMix 3KS onlyReplace the Outlet Tube and Static Mixer Tube Rebuild the Mix ManifoldRepair 312781E Part No , for ProMix 2KS Proportioner PartsPart No. Description Qty Integrator Kits include partsSize Description Part No , for ProMix 3KS Proportioner Part No , for ProMix 3KS Proportioner Integrator Kits Part No , for ProMix 2KE Proportioner, Sequential DosingPart Description Qty Restrictor Kit Part No , for ProMix 2KE Proportioner, Dynamic DosingParts 289695, 256875, and 262398 4000 psi 28 MPa, 280 bar Technical DataGraco Information Graco Standard Warranty