Operation
4-8
Part 1612500−02
E 2018 Nordson Corporation
Spray Gun Operation
To spray powder, pull the spray trigger.
To purge the spray gun, release the spray trigger and press down on the
purge trigger. If using a vibratory box feeder, fluidizing air is shut off while
the spray gun is being purged. P is displayed on the flow display.
Purge
Trigger
Spray
Trigger
Figure 4-5 spray gun Controls
Electrode Air Wash Operation
Electrode air wash air continually washes the spray gun electrode to
prevent powder from collecting on it. Electrode air wash air is turned on and
off automatically when the spray gun is triggered on and off.
Daily Operation
Startup
1. Turn on the spray booth exhaust fan.
2. Turn on the system air supply and power.
3. Fill the powder hopper 2/3 full of powder. When fluidized, the powder
volume will expand. Do not overfill.
4. Install the hopper filled with powder on the cart. Connect the hopper
ground cable and fluidizing air. Install the pump on the pickup tube or
connect the air tubing to the pump.
5. Make sure the spray gun is not triggered, then turn on controller power.
The displays and icons on the controller interface should light.
NOTE: If the spray gun is triggered on when the controller is powered up, a
fault will occur and the Trigger LED will blink fast. To clear the fault, release
the trigger and press the Disable/Enable button to put the controller to
sleep, then press the button again to wake it up.
6. Make sure the powder in the hopper is being fluidized properly. The
powder should boil gently, without any fountains. Adjust fluidizing air
pressure if necessary, using the needle valve on the rear panel of the
controller. Fluidizing air is on continuously as long as the controller is
on.
7. Point the spray gun into the booth and press the trigger to start spraying
powder.
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