54
OPERATING MANUAL
VERSION 02/2018
ORDER NUMBER DOC 2366717
7.4
WORKING
Ensure that:
The regular safety checks are carried out in accordance with Chapter
,
Commissioning is carried out in accordance with Chapter
.
7.4.1 CHECKING THE SPRAY PATTERN (WITHOUT ELECTROSTATICS)
AquaCoat
100
80
60
40
20
µA
80
60
40
20
10
kV
R3
R2
R1
Zerstäuberluft
Atomizing air
Mat. Druckregler
Mat. pressure reg.
Pumpe
Pump
POWER
0
1
21
15
22
1
10
9
11
3
B_03371
B_05905
Start air-spraying (without electrostatics)
1. Switch off control unit. (The pressure regulators continue to function.)
2. Set pump pressure regulator (9) depending upon the paint viscosity (see operating
manual of the product pressure generator).
– DD10 pump: approx. 0.2–0.6 MPa; 2–6 bar; 30–90 psi
– DD10-/ZIP52 pump with product pressure regulator: approx. 0.3–0.6 MPa; 3–6 bar;
40–90 psi
3. DD10-/ZIP52 pump with product pressure regulator:
Set product pressure regulator (10) to approx. 0.05–0.2 MPa; 0.5–2 bar; 7–30 psi
operating pressure.
4. Set atomizing air regulator (11) to approx. 0.2–0.4 MPa; 2–4 bar; 30–60 psi.
5. Open air regulator at the rear of the gun.
6. Set the union nut as far as the stop.
7. Spray (actuate trigger) and check the atomization.
8. – DD10 pump:
Use the pump pressure regulator (9) and atomizing air regulator (11) to set the
spray pressure to a point at which optimal product atomization is achieved.
– DD10-/ZIP52 pump with product pressure regulator:
Use the product pressure regulator (10) and atomizing air regulator (11) to set the
spray pressure to a point at which optimal product 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 different fan spray nozzle (see Chapter
Limit the valve needle stroke with the adjustment screw on the side of the gun.
