Ransburg Aerobell 168 A12787 - Manual (Page 44)

Aerobell 168 - Operation
41 LN-9270-12.3
OPERATION (continued)
FLUID FLOW RATE
CONTROL
Externally mounted fluid regulators or gear
pumps are typically used to control fluid flow.
The atomizer assembly is equipped with
valves which are pneumatically operated to
direct the flow of paint to either the feed tube
or dump line
! W A R N I N G
Fluid Flow Rate Check
In the test mode , the flow rate can be meas-
ured by removing the bell cup from the atomiz-
er, turning the fluid flow on, and capturing the
material in a graduated beaker or measuring
cup for a fixed period of time (shaping air, high
voltage, and turbine air must be off).
Danger of shock and/or personal injury can
occur. Proper ground procedures must be fol-
lowed. Personnel must never work around the
turbine when the turbine is spinning or when
high voltage is turned on.
TARGET DISTANCE
The distance from the Aerobell 168 atomizer
to target affects the spray application. For in-
stance, closer distances give a smaller spray
pattern and greater efficiency. Increasing the
distance will give a larger pattern and possibly
reduce efficiency. If the distance is too great,
material may “wrap back” on the Aerobell 168
TM
. However, coming too close may cause
arcing. (See the following "Warning".)
SHAPING AIRS (Mono Flex &
30mm)
Shaping air is used to shape the spray pat-
tern. The lower the pressure, the wider the
pattern, and conversely, higher pressures re-
sult in narrower patterns. Shaping air does
not help atomize the material, but does assist
in the penetration of atomized particles into
cavity areas. Shaping air should be kept at a
minimum consistent with coating require-
ments. Excessive shaping air will cause some
atomized particles to blow by the target not
allowing full “wrap,” or paint particles to
bounce back onto the atomizer.
Note: When Mono Flex shape air configuration
is used, one of the inputs on the atomizer
body will be required to be plugged. Either in-
put can be used for Mono Flex (SAI or SAO).
Dual Flex Shaping Air Configuration
Both inputs are required. Pattern adjustment:
Increasing the inner air will make the pattern
smaller. Increasing the outer air will make the
pattern larger.