NPE-LF10 and NPE-HF10 Powder Spray Guns10Part 108191C 2003 Nordson CorporationMaintenanceDailyClean the spray gun and pump daily. Use compressed air to blow powderfrom the spray gun, pump, and feed hose. Do not blow powder through thefeed hose from the gun to the pump. Disassemble the spray gun and pumpand replace any worn parts.PeriodicallyCheck the resistance of the electrostatic cable and gun resistor with anohmmeter or a 500 volt megohm meter. If the readings do not fall within theranges in Table 3, replace the cable or resistor.Table 3 Resistance Ranges (With New Electrode Assembly)Part MegohmsÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCables, end to end*ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ179−269ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁGun resistorÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ68.7−81.3ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower-unit end of cable toelectrode*ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ246−351ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ* Applies to both 8- and 16-m cables (guns without tip resistor).NOTE: The tip resistor/electrode assembly used on earlier versions is nolonger required. It is replaced by a new electrode assembly, without aresistor. You can replace the old tip resistor/electrode assembly with a kitthat includes the electrode support and electrode, or, if your old electrodesupport is still useable, by a kit that includes only the new electrode. Referto the Parts section, or contact your Nordson representative for moreinformation.If you are still using the tip resistor/electrode assembly, test your systemusing the resistance ranges in Table 4, and the cable and gun resistorranges in Table 4.Table 4 Resistance Ranges (With Tip Resistor)Part MegohmsÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower-unit end of cable toelectrode* ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ258−363ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTip resistor ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ10.8−13.2ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁGun and tip resistor(spring end of gun resistor toelectrode)ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ79.5−94.5ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ* Applies to both 8- and 16-m cables (guns with tip resistor).