Operation - WAGNER ZIP52 Finishing Operating Manual

VERSION 12 / 2012
OPERATING MANUAL
7

OPERATION

7.1
OPERATION
Priming:
Make sure that the air pressure regulator knob is turned fully counterclockwise
(0 bar pressure).
Open the air cut-off valve and the spray gun. Increase the air pressure until the pump
starts. Don't let the pump run too quickly while priming.
Insert the suction pipe into the paint container.
Wait until the pump is full.
Set the pump air pressure to 5-5.5 bar or even more, depending on the paint viscosity.
Open the spray gun and drain the fl ushing agent contained inside the hose. Close the gun
as soon as paint starts coming out. The pump stops while it is still pressurized.
Set the material pressure regulator to 1-1.5 bar.
Readjust the atomizing air pressure to 1.5-2 bar.
The unit is ready to spray.
Return valve:
To facilitate priming, open the return valve.
Once the suctioning is over, close the return valve.
If the product requires continuous circulation, adjust the return valve opening accordingly.
Pump shaking / air suctioning:
If the pump speeds up suddenly and starts to shake, it means that there is no paint left
inside it and that the pump is sucking air. In this case, more paint must be supplied.
If enough paint is available but the pump still shakes as if no more paint were available,
most likely the suction fi lter is clogged and must be cleaned.
In case air accidentally fl ows into the pump suction inlet, the compressed air pressure
must be reduced to avoid the pump working at an excessive speed.
Material pressure and atomizing air pressure:
The previously indicated values for the material pressure (1-1.5 bar), and for the atomizing
air pressure (1.5-2 bar) should be considered reference values, since the pressure is
dependent upon the characteristics of the paint to be used, above all on its viscosity.
If paints or other very fl uid products are to be used, the material pressure should be set
extremely low - to approximately 0.5 bar or even lower if necessary.
On the other hand, highly viscous paints may require a pressure as high as 3 bar or even
higher.
ORDER NUMBER DOC 2332848
32