Ransburg, Preparation of applicator for production placement, Spray patterns – Ransburg RMA202 Test Stand 77918-08 User Manual
Page 19

in size as air pressure for the shaping air is
adjusted.
6. Turn off the trigger for Paint #2. Trigger the
solvent line and repeat the adjustment process.
The pattern should increase or decrease in size
as air pressure for the shaping air is adjusted.
7. Trigger solvent in to the “On” position in the
fluid enable section. Trigger the (2) paint lines
(Paint #1, Paint #2, and solvent), to purge any
residual material in these areas. This material
will exit from the bell. All three may be triggered
at one time. Allow air to blow through the lines
for an additional 30 to 40 seconds.
8. Turn off all the triggers that are on. Use the
manual brake to stop the turbine.
PREPARATION
OF APPLICATOR
FOR PRODUCTION
PLACEMENT
Once all the tests have been completed, the ap-
plicator needs to be prepared for placement into
the production environment. To accomplish this,
all the water needs to be completely purged from
the coils and valves in the applicator.
SPRAY PATTERNS
The purpose of this section is to get a visual feel
that the atomization and shaping air are controlling
the spray pattern as desired. Since water does
not physically behave the same as paints, pattern
sizes will not be the same as when the applicator
is used to spray paint. The procedure to spray
water through the bell is:
1. Position the applicator such that any water
sprayed from the bell may be captured and
properly disposed of.
C A U T I O N
!
> During this part of the test, the turbine
must be running or the turbine motor may
be flooded.
C A U T I O N
!
> Setting the pressure pot regulator pres-
sure above 10 psig can cause the applicator
bell to flood. If this occurs, damage to the
turbine assembly may occur.
W A R N I N G
!
> During any part of the turbine test where
the applicator bell is rotating, DO NOT
come near or in contact with the spinning
bell. Because of the bell rotational speed,
injury can easily occur. Locate the bell in a
position where minimal exposure to anyone
passing by may come in contact with the
spinning bell.
2. Set the pressure pot fluid regulator pressure to
10 psig.
3. Set the atomizer speed select to 40,000 rpm.
Press the speed enter button. The turbine
should now begin spinning. This should be au-
dible.
4. Trigger Paint #1 switch. Turn shaping air on
and set to 40 psig. Adjust the shaping air up
and down by adjusting the pressure regulator
on the front panel. The pattern should increase
or decrease in size as air pressure for the shap-
ing air is adjusted.
5. Turn the fluid select to fluid. Fluid enable Paint
#1. Turn off the trigger for Paint #1. Trigger
Paint #2 switch and repeat the adjustment pro-
cess. The pattern should increase or decrease
To blow the fluid lines out, complete the following
steps:
1. Set the atomizer speed select to 40,000 rpm.
Press the speed enter button.
2. Turn on and adjust shaping air pressure to 25
psig.out of the coiled lines.
> Shaping air must be on during
the entire air purge cycle.
N O T E
RMA-202 Test Stand - Installation
17
Ransburg
LN-9527-00.1