Operation
4-12
Part 1602221-01
E 2012 Nordson Corporation
Maintenance
WARNING: Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
WARNING: Turn off the electrostatic voltage and ground the gun electrode
before performing the following tasks. Failure to observe this warning could
result in a severe shock.
Daily Maintenance
NOTE: Depending on your application, you may not need to perform this
procedure every day.
1. Purge the spray gun, then press the Enable/Disable button on the
controller to put it to sleep.
2. See Figures 4-6 and 4-7. Remove the nozzle from the gun:
Flat or Corner Spray Nozzle: Unscrew the nozzle nut (1) and remove
it along with the nozzle (2) from the gun.
Conical Nozzle: Unscrew the deflector cap (1), then remove the
deflector (2). Unscrew the nozzle nut (5) and remove it along with the
nozzle (4) and pattern sleeve (3) from the gun.
3. Pull the electrode support out of the gun.
4. Pull the powder hose adapter out of the gun.
5. Blow out the gun from the powder hose connector toward the front end.
6. If you are using a conical nozzle, pull the pattern sleeve (3) off the
nozzle nut and nozzle. Clean all parts removed with a low-pressure
blow gun. Wipe the parts with a clean, dry cloth.
7. Inspect the ceramic nozzles, pattern sleeve, and electrode support and
holder for wear. Replace worn or damaged parts.
8. Check the hose adapter and powder hose for wear and replace if worn
or damaged.
Make sure the system is securely connected to a true earth ground before
spraying powder.
Weekly Maintenance
Check the resistance of the power supply and electrode support assembly
with a megohm meter, as described in the troubleshooting procedures.
Replace the power supply or electrode support, if the resistance readings
do not fall within the specified ranges.
Check the system air filter. Drain the filter and change the filter element as
needed. Refer to Parts for the replacement element part number.
Check all system ground connections.
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