Operation4-2Part 1075735-02 2016 Nordson CorporationStartup (contd)WARNING: The operator must maintain skin contact with the the gunhandle. If wearing gloves, cut away the palm. Failure to observe thiswarning could result in a severe shock.4. Point the spray gun into the booth, pull the trigger, and test the spraypattern. Adjust the flow rate and atomizing air pressures and patternadjust sleeve until you obtain the desired pattern.5. Turn the kV potentiometer dial clockwise until it stops.6. Coat a few parts and adjust the kV potentiometer dial until you obtainthe desired results.Shutdown 1. Turn the kV potentiometer dial counterclockwise until it stops.2. Turn the control unit power switch to the off position.3. Ground the gun electrode.4. Perform the Daily Maintenance procedures.For information on operating other components of your powder spraysystem, refer to the appropriate manuals.MaintenanceWARNING: Turn off the electrostatic voltage and ground the gun electrodebefore performing the following tasks. Failure to observe this warning couldresult in a shock.Daily MaintenanceThe following procedure will help maintain the spray gun powder path.1. See Figure 4-1. Disconnect the powder feed hose off of the feed hoseadapter (14). Squeeze the powder feed hose to remove it from the hosebracket.2. Point the spray gun into the booth and blow the powder out of the hoseand spray gun with low-pressure compressed air. Never blow airthrough the powder feed hose from the spray gun into the pump.3. Remove the pattern adjust sleeve (8), deflector (12), and nozzle (7). Ifyou are using a flat-spray nozzle, remove the nozzle.4. Remove the wear sleeve (5) from the resistor probe (2).5. Remove the feed hose adapter. Loosen the set screw (13) and pull thepowder inlet body (4) from the extension (1).6. Clean the removed parts and the extension and resistor probe with anOSHA-approved low-pressure air gun and a clean cloth. Carefullyremove any fused powder with a wooden or plastic dowel or similar tool.Do not use tools that will scratch the plastic. Powder will build up andimpact-fuse on scratches.