Nordson NPE-LF10 Customer Product Manual

Contents

NPE-LF10 and NPE-HF10 Powder Spray Guns 7Part 108191C 2003 Nordson CorporationElectrostatic Cable InstallationThe electrostatic cable is the high-voltage link between the power unit andthe spray gun. The cable must be properly installed and maintained. If it isdamaged, the high voltage can burn through the cable, arc to a groundedobject, and start a fire or explosion.WARNING: Protect electrostatic cables from mechanical damage andstrong solvents. Inspect and test the cable frequently. A damaged cableused in a hazardous environment can cause a fire or explosion that couldresult in personal injury and property damage.1. Remove the electrostatic cable (8) from the shipping box and carefullyunroll it. Establish a protected path between the electrostatic power unitand the spray gun for the cable. The power unit end of the cable has ametal tag on the threaded fitting and is tipped with a brass ball.NOTE: Do not bend the cable around a radius of less than 150 mm (6 in.)at stationary points or 200 mm (8 in.) at flexing points.2. Secure the cable to the gun mounting bar and other supports so it is offthe floor and out of the way of moving equipment. If you are mountingthe spray gun on a reciprocator, secure the cable so it will not bedamaged by repeated rubbing against nearby equipment or the floor.Allow enough slack to prevent any strain on the cable.CAUTION: Clean the cable ends before connecting the cable to the gunand power supply. Contaminants on the cable ends can cause arcingbetween the voltage source and ground. This will damage the cable andcan significantly reduce gun performance.3. Make sure the cable ends are clean and dry. Use isopropyl alcohol toclean the cable ends.4. Look into the cable adapter (9) and make sure the insulating tube isfilled with dielectric grease. Insert the spray gun end of the cable intothe cable adapter until it is pressing against the resistor spring (item 7,Figure 3). Wipe off the dielectric grease extruded from the cableadapter.WARNING: The cable end and resistor spring must be completelyembedded in dielectric grease. Air pockets could allow the high voltage toarc and burn through the insulating tube and cable well.5. Thread the cable retaining nut onto the cable adapter and tighten it byhand.6. Remove the dust cap from the power unit cable well.7. Remove the shipping spacer from the well and fill it with dielectric oil.8. Insert the cable end into the well until it contacts the bottom. Thread thecable retaining nut onto the cable well and tighten it by hand. Wipe upany spilled oil.