Operation4-10Part 1612500−02 2018 Nordson CorporationMaintenanceWARNING: Allow only qualified personnel to perform the following tasks.Follow the safety instructions in this document and all other relateddocumentation.WARNING: Turn off the electrostatic voltage and ground the spray gunelectrode before performing the following tasks. Failure to observe thiswarning could result in a severe shock.Cleaning Conical Nozzles and DeflectorsWARNING: Turn off the spray gun and ground the electrode beforeperforming this procedure. Failure to observe this warning could result in asevere electrical shock.WARNING: Release the spray gun trigger, put the controller to sleep, andground the electrode before performing this procedure. Failure to observethis warning could result in severe electrical shock.CAUTION: Purge the spray gun and press the Enable/Disable button to putthe controller to sleep and prevent accidentally triggering the spray gun.CAUTION: Remove the deflector cap (1) and deflector (2) beforeunscrewing and removing the nozzle nut, nozzle, and pattern adjuster.Damage to the electrode support (8) will occur if the deflector is notremoved first.1. See Figure 4-6. Hold the deflector (2) with finger while unscrewing thedeflector cap (1). Gently pull the deflector off the electrode holder (6).2. Unscrew the nozzle nut (5) and remove the conical nozzle(4), andpattern adjuster sleeve (3) from the spray gun.3. Remove the electrode support assembly (6, 7, and 8) from the spraygun. Use low-pressure compressed air to clean the assembly. Inspectthe sleeve inside the support and replace it if worn or damaged. Referto Electrode Support Assembly Replacement in the Repair section ofthis manual.4. Clean all parts with low-pressure compressed air. Inspect all parts andreplace any that are worn or damaged.