Ransburg Aerobell 168 A12787 - Manual (Page 42)

Aerobell 168 - Operation
39 LN-9270-12.3
OPERATION
! W A R N I N G
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 spin-
ning. 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.
Operators must be fully trained in safe opera-
tion of electrostatic equipment. Operators
mist read all instructions and safety precau-
tions prior to using this equipment (see NFPA-
33)
Electrical discharge on a high electrical capac-
itance fluid/paint system can cause fire or ex-
plosion with some materials. If arcing occurs
when a specific material is used , turn the sys-
tem OFF and verify that the fluid is non-
flammable. In these conditions, the system is
capable of releasing sufficient electrical and
thermal energy to cause ignition of specific
hazardous materials in the air.
As with any spray finishing system, operation
of the Aerobell 168 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. Adjust-
ments to operating parameters, which cover
spraying, cleaning, and ON/OFF control, in-
clude the following:
Coating Materials
Fluid Flow Rate Control
Fluid Valve / Trigger Control
Turbine Speed
Shaping Air (pattern control)
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 de-
pend upon the type of coating material and
various application requirements.
Excessive speed will cause air turbine dam-
age. Do not exceed the maximum rated speed
of 60,000 rpm.
Turbine speed may be controlled by either
the use of A11515-XXXX Pulse Track 2 or
A11925-00 Serial Atomizer Module in an Euro
rack configuration or as part of A11000-XX
Control Pak system.
! C A U T I O N