Working With The Spray Guns; Optimizing The Spray Pattern For Your Coating; Switching Off The Spray Gun - WAGNER PEA-C4-HiCoat FM Operating Manual

3.

Working with the spray guns

3.1

Optimizing the spray pattern for your coating

•
Switch on the high voltage generator and the powder feed.
Caution
To minimize the wear on the wearing parts, the total feed air and dosage air should be
under 5 Nm
The atomizing air should be adjusted for the
•
Fan spray nozzle to 0.1 Nm
•
Round spray nozzle to 0.2 Nm
•
Adjust the powder quantity and the powder speed on a test piece.
3.2

Switching off the spray gun

The spray gun is switched off differently depending on the type of powder injector. In the
majority of cases this process is be performed by a control unit of the coating system.
Hint
On each interruption to work, the spray gun should be blown through (purged) and
powder residue removed. In this way powder deposits and a surge the next time the
spray gun is switched on can be largely avoided.
If you want to manually switch off the spray gun and are using a powder injector that is not
designed for automatic purging, proceed as follows:
•
The atomizing air must be left open so that no powder can enter the atomizing air ducts
and the cascade space during purging. Switch off the powder feed and the high voltage
generator.
•
If you do not want to change the settings for the feed air and dosage air so that you can
continue to coat using the same powder pattern, pull the powder injector out of the injector
connection on the powder container. No more powder will be fed when the powder feed is
switched back on.
•
Switch the powder feed back on so that the spray gun is blown clear of powder.
•
You can now switch off the powder feed.
14
3
/h !
0390882
Working with the spray guns
3
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3
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PEA-C4-HiCoat FM
0301_ .doc
0302_ .doc
01 / 2008