Nordson NPE-HF10, Customer Product Manual

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NPE-LF10 and NPE-HF10 Powder Spray Guns
10
Part 108191C
E 2003 Nordson Corporation
Maintenance
Daily
Clean the spray gun and pump daily. Use compressed air to blow powder
from the spray gun, pump, and feed hose. Do not blow powder through the
feed hose from the gun to the pump. Disassemble the spray gun and pump
and replace any worn parts.
Periodically
Check the resistance of the electrostatic cable and gun resistor with an
ohmmeter or a 500 volt megohm meter. If the readings do not fall within the
ranges in Table 3, replace the cable or resistor.
Table 3 Resistance Ranges (With New Electrode Assembly)
Part Megohms
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Cables, end to end*
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
179 − 269
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Gun resistor
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
68.7 − 81.3
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Power-unit end of cable to
electrode*
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
246 − 351
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
* Applies to both 8- and 16-m cables (guns without tip resistor).
NOTE: The tip resistor/electrode assembly used on earlier versions is no
longer required. It is replaced by a new electrode assembly, without a
resistor. You can replace the old tip resistor/electrode assembly with a kit
that includes the electrode support and electrode, or, if your old electrode
support is still useable, by a kit that includes only the new electrode. Refer
to the Parts section, or contact your Nordson representative for more
information.
If you are still using the tip resistor/electrode assembly, test your system
using the resistance ranges in Table 4, and the cable and gun resistor
ranges in Table 4.
Table 4 Resistance Ranges (With Tip Resistor)
Part Megohms
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Power-unit end of cable to
electrode*
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
258 − 363
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Tip resistor ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
10.8 − 13.2
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Gun and tip resistor
(spring end of gun resistor to
electrode)
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
79.5 − 94.5
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
* Applies to both 8- and 16-m cables (guns with tip resistor).