Nordson Trilogy AS Product Manual
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Contents
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Trilogy Air Spray/LVLP Automatic Spray Guns 11Part 1601058−03 2014 Nordson CorporationTroubleshootingWARNING: Allow only qualified personnel to perform the following tasks.Follow the safety instructions in this document and all other relateddocumentation.These troubleshooting procedures cover only the most common problems.If you cannot solve a problem with the information given here, contact yourlocal Nordson representative for help. See Figure 5 for parts information.Problem Possible Cause Corrective Action1. Paint flow decreases whensprayingFluid filter clogged Clean the filter.Viscosity too high Lower the material viscosity.Nozzle too big or worn out Replace the nozzle.Fluid pressure too low Increase fluid pressure.2. Irregular fan pattern Nozzle orifice clogged Clean or replace nozzle.Fluid filter clogged Clean the filter.Nozzle too big or worn out Replace the nozzle.Viscosity too high Lower the material viscosity.Either not enough or noatomizing airAdjust atomizing air flow(regulator R).Air cap orifices clogged Use a soft bristle brush andsolvent or waterborne cleaningsolution to clean the air cap.3. Nozzle clogs Material pigment too coarse fornozzle sizeUse a larger nozzle.Fluid filter mesh too big Use a smaller filter mesh.4. Spraying continues whengun triggered offNozzle or needle worn out Replace the nozzle or needle.Needle packing gland too tight;needle cannot moveLoosen the needle packing glandor replace the seals.Piston springs worn out Replace springs. Make surepiston moves smoothly incylinder.Solenoid valve triggering gun ismalfunctioningCheck solenoid valve operation.5. Spray gun leaking fluidfrom packing glandPacking gland too loose Tighten packing gland.Needle seals worn. Replace seals.6. Air leaking from air capwhen gun not sprayingPiston seals worn Replace piston.7. Spray gun leaks air atspring capPiston seals worn Replace piston. |
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