SATA minijet 4 HVLP Betriebsanleitung Seite 77

Operating instructions SATAminijet 4 HVLP
4.1. Clean spray air
...best obtained by using a combi fine filter unit with integrated
pressure regulator, for rough spray pressure adjustment. Due to high
pressure drop in the air hose/coupling, the actual dynamic air pressure
should be checked and fine-adjusted at the spray gun air inlet.
part. no. 92296
4.2. Sufficient air volume
...obtained by an appropriate compressor, large air line diameters and,
to avoid too much pressure drop, an air hose with minimum 9 mm inner
diameter in antistatic, silicone-free and pressure-resistant version. Blow
out the air hose before attaching it to the air connection (G 1/4 ext.). The
air hose must be pressure-resistant for min. 145 psi and solvent-resistant.
Total electric resistance: < 100 million Ohm, non-resistant against benzine
and oil.
part. no. 53090 (Length 10m)
4.3. Air micrometer
For maximum air flow, fully open integrated Micrometer, i.e. put into ver-
tical position III. Pressure can be adjusted directly at the spray gun. By
means of the variable adjustable air micrometer the spray gun internal
pressure can be set. Connect the spray gun to the air supply, pull the
trigger and adjust the requested spray gun internal pressure.
Note:
- Micrometer in vertical position (position III - parallel to the gun body) =
maximum atomization and maximum internal spray gun pressure (iden-
tical with spray gun inlet pressure).
- Position I or II (across gun body) = minimum atomization, minimum
internal spray gun pressure (for Spot Repair, speckling, etc.)
Attention: While the spray gun is connected to the air supply, the
headless pin, pos. 64972, must not be removed. When the headless
pin is removed, the spray gun must not be put into operation.
4.4 Correct adjustment of the dynamic inlet pressure
a) Spray gun with micrometer / gauge
Ensure that pressure regulator provides sufficient pressure. Adjust recom-
mended inlet pressure of 29 psi at the micrometer
part. no. 27771
b) Spray gun equipped with compressed air control gauge
Adjust the pressure on the pressure regulator in a way that the necessary
inlet pressure for the spray gun type is reached.
part. no. 4002
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IX.3