wiwa Duomix 230, Руководство по эксплуатации

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32 Translation of the original operation manual
DUOMIX 230
DM230_BAoDB_en_1307 · rs
Operation
5.2.1 Adjusting spraying pressure
Please observe the following instructions when adjusting the spraying pressure:
➤
Optimal spraying pressure is indicated by a uniform application of material
with fading out peripheral zones.
➤
Operate the unit only with an air pressure as
high as necessary, to achieve a good atomiza-
tion at the recommended spraying distance of
approx. 30 - 40 cm.
➤
Too high spraying pressure causes increased
material consumption and paint mist.
➤
Too low spraying pressure results in the
appearance of stripes and differences in the
coating thickness.
30-40 cm
Fig. 29: Spraying distance
5.2.2 Adjusting the pressure and dosing control
The black pointer in the contact pressure gauge shows the actual pressure.
Once you have set the optimal spraying pressure, you use the two red pointers
to set the operation Iimits for the current work process as follows:
1. Insert the attached key into the contact pres-
sure gauge.
2. Use the driver needle to turn the lower red
slave pointer to a value of approx. 20 bar
below the minimum pressure that is indicated
when the spray gun is opened.
3. Use the driver needle to turn the upper red
slave pointer to a value of approx. 20 bar
above the maximum pressure that is indicated
when the spray gun is closed.
4. Pull the key back out.
Fig. 30: Operation Iimits
+ 20 bar
- 20 bar
The pressure and dosing control must be readjusted each time the spraying
pressure has been changed. lf the pointer of the contact pressure gauge
does not move or moves only insignificantly, the unit must not be put into
operation due to the danger of mixing faults!
5.2.3 Tips for good coating
➤
Hold the spray gun at a right angle (90°) to the
area to be coated. lf the spray gun is held at a
different angle, the coating becomes irregular
and blotchy (see Fig. 31).
➤
Move the spray gun with your arm and not with
your wrist.
➤
Begin moving the spray gun before pulling the
trigger. This way you will achieve perfect, soft
and smooth overlapping of the spray jet and
excessively thick application of material at the
beginning of the coating process is avoided.
Fig. 31: Spraying angle
right
wrong