Ransburg Aerobell (Std.) Rotary Atomizer A12381 - Manual (Page 39)

OPERATION
As with any spray finishing system, operation of
the Aerobell involves properly setting the operating
parameters to obtain the best finish quality for the
coating material being sprayed, while maintaining
correct operation and reliability of the equipment
used. Adjustments to operating parameters,
which cover spraying, cleaning, and on/off control,
include:
• Coating Materials
• Fluid Flow Rate Control
• Fluid Valve / Trigger Control
• Turbine Speed
• Shaping Air (Pattern Control)
• Brake Air
• Electrostatic Voltage
• Target Distance
TURBINE SPEED
The speed of the turbine is determined by the
air inlet pressure. See "Turbine Air Pressure,
RPM, SCFM" in the "Installation" section for more
information. The desired speed will depend upon
the type of coating material and various application
requirements.
BEARING AIR
>
Excessive speed will cause air turbine
damage. Do not exceed the maximum rat-
ed speed of 60,000 rpm.
>
Air bearing air must be on whenever
the turbine is operated. If not, severe
bearing damage will occur. It is recom-
mended to leave bearing air on at all
times. During maintenance or disassem-
bly, turbine air must be off for at least 3
minutes before shutting off bearing air or
main line air.
Bearing damage (and subsequent turbine failure)
caused by running the turbine without bearing air
will not be covered under Ransburg warranty.
When turning the turbine on, bearing air must be
present. Likewise, bearing air must remain on
when the turbine air is turned off until the turbine
stops spinning. Never turn off bearing air to cause
the turbine to stop spinning. Brake air can be used
to slow the turbine (see "Brake Air" in this section).
Wait for the turbine to stop spinning before turning
bearing air off.
>
Operating the turbine with bearing air
pressure below 60 psi (measured at turbine
inlet) may cause bearing damage.
The nominal bearing air pressure is 80 psi, 60
psi minimum, 100 psi maximum. Under no
circumstances should the turbine be operated with
less than 60 psi bearing air pressure.
>
Operators must be fully trained in safe
operation of electrostatic equipment. Operators
must read all instructions and safety precautions
prior to using this equipment (reference NFPA-
33).
W A R N I N G !
C A U T I O N !
C A U T I O N !
C A U T I O N !
Turbine speed may be controlled by either the use
of A11515-XXXX PulseTrack 2 or A11925-00Serial
Atomizer Module in an Euro rack configuration or
as part of A11000-XX Control Pak system.
Aerobell - Operation
35 LN-9264-08.2
Ransburg