Graco PRO AA4500 Instructions-Parts List Manual page 15

GUN SET-UP
11.Set the Atomization
Fluid
Pressure
(continued)
G.
Continue to increase the fluid pressure by the
increments shown
in
the chart until the particle
size no longer reduces
in
size;
do
not
exceed
the gun's Maximum Fluid Pressure of
3000
psi
(207
bar).
When
the
particle size no longer reduces
in
size, the pattern
is
atomized at the lowest pos-
sible fluid pressure,
but
will still have tails.
H. To
eliminate the tails, gradually open the air
control valve, by turning
it
counterclockwise,
until there are no tails in the pattern.
n
f \
43
\
open
I
"
No Air
Too Little Air
Right
Amount
of Air
0182
Fig 11 .H
12.Turn the
ES
ON-OFF
Lever (26)
to ON.
13.Use the
ES
HI-LO Lever (439) to change
to either full voltage (HI) or a lower volt-
age level (LO).
Fig 12.-13.
The LO setting is factory set to 60 kV. This setting can be
adjusted between 45 and
80 kV. See
page 34 to adjust.
NOTE When spraying, the ES indicator light (K) will
glow, indicating the electrostatic charge.
01867
308-294
15