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5413010-Farbspritz-man_a 23.03.12 13:12 Seite 69
volume goes, the paint is too thick or
too viscous. To get a better result,
first of all try to change the pressure
by adjusting the control knob. If this
is not possible, thin the paint
accordingly.
4. Should the mist discharged appear too
heavy with weak concentration, raise
the pressure by turning the control
knob clockwise or use a discharge
nozzle with a smaller diameter.
Thinning (Fig. 4)
ATTENTION! Pull the mains plug,
before filling the tank with paint.
Most paints are delivered ready-mixed
and must be thinned before they can be
sprayed. The manufacturer's instructions
must be observed with regard to paint
thinning for the spraying operation. The
viscosity beaker will help to determine
the correct viscosity for the paint used.
To this end, fill the beaker with paint up
to the brim. Time how long it takes for
the beaker to be emptied into the paint
tin. The table below shows the times
recommended for various materials:
Artificial resin and latex
paints
Paints on a water basis
Priming paints
Clear varnishes
Oil paints
Enamel paints
Aluminium paints
Vehicle undersealing
Wood primers
Wood preservatives
Wood varnishes
Should emptying the paint take longer
than the time recommended, then
further thinning will be necessary. To
this end, add a small quantity of the
suitable thinner and test its viscosity
until the right one is reached. Some
paints meant for spraying contain
particles or lumps and should be sieved
before the paint tank is filled.
8 – Mode of operation
The surfaces to be worked must be free
of dust, dirt and grease. Surfaces that
are not to be sprayed must be covered
with good-quality adhesive tape. The paint
or liquid to be sprayed must be mixed
thoroughly and be free of any lumps or
other particles. Numerous substances
can be sprayed with this spray gun.
Spraying
Fill the tank with the correctly thinned
and sieved paint.
Connect the spray gun to the mains
power supply. Aim at a piece of scrap
paper and actuate switch (2) until paint
emerges. Set the control knob, so that
the paint quantity required is discharged.
Turn the knob clockwise to reduce the
discharge flow and counter clockwise to
24–28 seconds
increase it. The setting of the discharge
20–25 seconds
flow will affect the spray pattern. With a
24–28 seconds
flawed spray pattern, the paint is
20–25 seconds
concentrated in the centre of the jet
18–22 seconds
spray, which will lead to irregular paint
18–22 seconds
distribution on the surface. The jet spray
22–25 seconds
is correctly set, if the paint is uniformly
25–35 seconds
distributed over the jet spray as a whole.
28–35 seconds
No thinning
Spraying techniques
required
No thinning
To obtain best possible results, the spray
required
gun must always be held upright and
parallel to the surface. Keep a distance of
20 to 30 cm between the spray nozzle
and surface, and spray uniformly back -
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