Ransburg RMA-560 Single_Dual Purge Direct A13364 - Manual (Page 42)

TARGET DISTANCE
The distance between the RMA-560 atomizer
and the target will affect the finish quality and
efficiency. Closer distances give a smaller pat-
tern, wetter finish, and greater efficiency. Greater
distance will provide a large pattern size and drier
finish. The MicroPak control circuit will enable
the applicator bell to be operated to within a few
inches of the target without adjusting the voltage
setting. The recommended target distance is 6
to 12-inches (152.4-304.8mm). In general, allow
1-inch (25.4mm) target distance for every 10kV.
GENERAL OPERATING SEQUENCE
Normally, for painting application, the process
sequence should always be:
• Bearing air on (Always On)
• Turbine air on
• Turbine speed to application speed
• Shaping air on
• Start fluid flow off part
• Voltage on
After spraying the object, the sequence
should be:
• Voltage lowered to 30-50 kV
• Fluid off
• Shaping air to setback volume
• Turbine speed to set back speed (30,000
rpm recommended)
Recommended sample cup flush sequence is
as follows (voltage must be off) (internal and
external cup wash):
1. Turbine speed set to 25,000-30,000 rpm.
2. Set shaping to 350-450 slpm (12.4-15.9
SCFM).
3. Point atomizer at a grounded object such as
a booth grate.
4. Maintain solvent pressure of 100-150 psi
(689-1,034 kPa). Maintain air push pres-
sure at 80-100 psi (552-689 kPa).
5. Use an alternating trigger sequence of sol-
vent/air to create a chopping effect. Always
ensure that the last step in the sequence is
an air push.
A typical sequence is .2 seconds solvent,
1.0 second air push, 1.7 seconds solvent
and 2.0 seconds final air push. This se-
quence may be modified for other paints
and applications
6. It is recommended that an in-line fluid filter
be installed to ensure that no foreign debris
enters the fluid tip or the external wash nozzle.
The RMA-560 is versatile in processing the fin-
ish of a component. It can be setup as shown
in “Typical Paint Sequence” figure.
Recommended sample cup purge sequence
is as follows (voltage must be off) (internal cup
cleaning):
1. Turbine speed set to 25,000-30,000 rpm.
2. Increase shaping air to 350-450 slpm (12.4-
15.9 SCFM).
3. Paint atomizer at booth grate or insert into
bell cleaning station.
4. Maintain solvent pressure of 100-150 (689-
1,034 kPa). Maintain air push pressure at
80-100 psi (552-689 kPa).
5. Use an alternating trigger sequence of sol-
vent/air to create a chopping effect. Always
ensure that the last step in the sequence is
an air push.
6. A typical sequence is .3 seconds solvent,
1.7 seconds air push, repeat 3 times. This
sequence may be modified for other paint
and applications.
W A R N I N G
!
† It is recommended to leave bearing air
on, unless the applicator is being serviced or
removed for service.
RMA-560 Single/Dual Purge Direct Charge - Operation
Ransburg
LN-9278-13 39