40
VERSION 03/2018
ORDER NUMBER DOC 2369735
5.7.2 MODE OF OPERATION
The GA 5000EAW spray gun may only be operated with the control units designed for that purpose.
GA 5000EAWIC
GA 5000EAWEC
M
B_06007
AA / SA
CA
SA
AA
Pneumatic Diagram
Description
SA Shaping air
AA Atomizing air
CA Control air
M
Product
N
Nozzle
CA
SA
AA
SA
AA
M
B_06008
GA 5000EAWIC
Open valves
The piston in the drive is charged with control
air and moves toward the rear. This ensures that
the air valve which releases the shaping and
atomizing air is opened first. The product valve
is then opened with a mechanical delay. In this
position, the pressurized coating product is
applied to the work piece.
Close valves
The piston is relieved, and the product valve
closes due to the pressure spring which presses
against the product valve tappet. The air valve
is then closed, again with a spring force and
mechanical delay.
Shaping air
The relationship between shaping air and atomizing
air is set using the shaping air regulator (6).
GA 5000EAWEC
Open valves
First, the external air valve, which enables
the shaping and atomizing air, is opened. The
diaphragm in the drive is then charged with
control air and moves toward the rear, opening
the product valve. In this position, the pressurized
coating product is applied to the work piece.
Close valves
If the control air is deactivated, the product valve
closes due to the pressure spring.
The air valve is then closed externally.
Shaping air/atomizing air
The shaping air pressure and the atomizing air
pressure are set externally via separate pressure
regulators. Both air flows are supplied separately,
which allows them to be set separately.
High voltage
– High voltage is activated when the VM 5020WA control unit is switched on.
– The high voltage can be adjusted at the VM 5020WA and can be adapted to the paint or to the spraying
object.
