Nordson kinetix, Руководство пользователя

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Troubleshooting
6-4
Part 334598G03
E 2008 Nordson Corporation
Electrostatic Troubleshooting
Problem Possible Cause Corrective Action
1. Loss of wrap, poor
transfer efficiency
Low electrostatic voltage Increase the voltage.
Resistor or multiplier failure Check the multiplier/tip resistor
assembly with a megohmmeter for
277 − 340 megohms at 500 volts. If
the reading is out of range, check the
resistor tip separately. The tip
resistor should measure
33.3 − 36.8 megohms. Refer to
Multiplier Continuity and Resistance
Check on page 6-5.
Poorly grounded parts Check the conveyor chain, rollers,
and part hangers for paint buildup.
The resistance between the parts
and the ground must be 1 megohm
or less. 500 ohms or less is
recommended for best results.
2. No kV output from
spray gun
KV on/off switch in off position Check the position of the kV on/off
switch. Switch to the on position if
necessary.
Damaged gun cable Check the continuity of the cable
wires, from pin to pin. Replace the
cable if any opens or shorts are
found. Refer to Gun Cable Continuity
Check on page 6-6.
Malfunctioning voltage multiplier Check the continuity and resistance
of the multiplier with a megohmmeter
for 277 − 340 megohms at 500 volts.
No burn throughs or arc tracks
should be visible on any parts. Refer
to Multiplier Continuity and
Resistance Check on page 6-5.
Failed tip resistor Check the resistor with a
megohmmeter for
33.3 − 36.8 megohms at 500 volts.
Malfunctioning gun control unit Check for 21 Vdc between cable end
connectors. Refer to Gun Cable
Continuity Check on page 6-6.
Insufficient air flow to activate the
electrostatics
Increase the air pressure.
Clogged or dirty muffler Clean or replace the muffler.
Air pressure too low Increase the air pressure.
Continued...