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GENERAL REQUIREMENTS FOR APPLICATION TECHNOLOGY
Starting the spraying procedure
• Open the air flow regulator (fig. 14, 2) and the material tap
(14, 1) at the spray lance.
• Adjust the flow of material with the delivery volume con-
troller (fig. 15, 3) on the control unit and set the air quantity
by adjusting the air flow regulator (fig. 14, 2) to attain the
desired spray pattern.
Important: Do not let the mortar spraying
machine run dry. Switch the device off im-
mediately if no more material comes out of
the tip or if the spray line becomes irregu-
lar. Possible reasons for the problem and
how to correct it can be found in the chap-
ter called „Eliminating faults".
Increased material tap wear. Do not use the
material tap to set the material volume.
The delivery volume controller should be
used for this purpose.
2
1
38
1
End of the spraying procedure
• Close the material tap (Fig. 14, 1).
• Close the air flow regulator (fig. 14, 2).
8
GENERAL REQUIREMENTS FOR
APPLICATION TECHNOLOGY
Spraying technique
Guide the spray lance at a uniform distance of 30 – 60 cm from
the object when spraying. If you do not do this, you will not
achieve a regular spray pattern. The spray pattern is depend-
ent upon the type of material, material consistency, tip size,
material delivery rate and air delivery rate.
fine texture
coarse texture
Higher material
delivery rate
We recommend that you test the required texture on a sample
surface.
To improve the „feathering effect" in order to allow easier over-
lap, choose an appropriate distance between the spray lance
and the object surface.
The spray margin should „feather out" to allow easier overlap-
ping.
Considerably less spray mist is produced if the spray lance is
always guided at 90° parallel to the spray surface.
Note:
Sharp-edged grains and pigments will increase wear on the
pump, hose, material ball valve and tip.
2
3
4
Plast Coat 25 · 35
Always close material tap at end of the
spray process.
––> larger air delivery rate
––> low air delivery rate
––> higher air delivery rate
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