51
GA 5000EA
+
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B_05758
OPERATING MANUAL
VERSION 09/2016
ORDER NUMBER DOC2360924
7.3.1
CHECKING THE GA 5000EA SPRAY PATTERN (WITHOUT ELECTROSTATICS)
Start air-spraying (without electrostatics)
1. Switch off high voltage at the control unit. (The grounding of the spray gun via the
gun cable is maintained.)
2. Start up with product supply generator set to approx. 0.05 to 0.15 MPa; 0.5 to 1.5 bar;
7 to 22 psi operating pressure. See corresponding operating manual.
3. Set atomizing air regulator to approx. 2 - 4 bar.
4. Open air regulation on the gun.
5. Set the union nut as far as the stop.
6. Spray (switch on controller) and check the atomization.
7. Adjust the fl uid pressure on the product pressure generator until correct discharge
quantity is achieved.
8. Adjust the atomizing air regulator until optimal atomization is achieved.
9. Flat jet process: with the air adjustment on the gun, set the ratio of shaping air/
atomizing air so as to achieve an optimum spray pattern.
Changing the Flow Rate
Adapt product pressure.
Use a diff erent nozzle (see Chapter 13).
Limit the valve needle stroke with the adjustment screw on the rear of the gun.
Spray pattern and air regulation
The spray pattern can be optimally adjusted to suit the object being sprayed using the air
regulator. The illustration shows the infl uence of the regulator on the spraying pattern.
Other nozzle sizes can be used to obtain larger or smaller spraying patterns.
Round-jet method
Close air regulation.
The size of the air cap should
match with the nozzle size.
Flat jet method
Air regulation fully
opened.
Air regulation closed.
7.3
WORKING
Summary of Contents for GA 5000EAEC
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