Ransburg REA Automatic Applicators 77359, 76110, 77140 - Manual (Page 22)

Paint Preparation
A proper paint mixture is essential to electrostatic
operation. Paint test equipment may be obtained
through your Ransburg representative. Consult
Ransburg “Paint Related Information for REA and
REM Applicators” manual, for paint formulation
information. For further paint formu-lation and
testing procedures, consult your Ransburg rep-
resentative and/or your paint supplier.
Spray Technology Conversion
Procedure
Remove existing retaining ring and air cap from
end of applicator. Remove fluid nozzle using
applicator wrench 19749-00.
Atomizer Assembly Selection
The “Atomizer Assembly Selection Chart” is pro-
vided to give you a comparison of the air caps
and fluid nozzles. THE CHOICE OF ATOMIZER
ASSEMBLY SHOULD DEPEND ON QUALITIES
DESIRED AND MUST BE VERIFIED BY ACTUAL
TRIAL. See your authorized Ransburg electro-
static distributor for atomizer demonstration.
Spray Pattern Adjustment
The spray pattern of fan atomizers is adjustable
from a small circle to an elongated oval, approx-
imately 10 to 18-inches across the usable long
axis at 8 to 12-inches from the target. The swirl
atomizer assemblies produce a round pattern
from 5 to 9-inches in diameter. To adjust pattern
size, increasing fan air pressure will expand the
pattern, a reduction will decrease it. To change
the spray pattern axis of fan atomizers from
horizontal to vertical, loosen retainer ring, rotate
the air cap clockwise to the desired position and
gently tighten the ring.
> To avoid damage to the fluid nozzle and
electrode, the paint pressure and trigger return
spring tension MUST be released by triggering
the applicator prior to removing the fluid nozzle.
> The applicator
MUST be tilted front down to
remove the fluid nozzle. Failure to do so may
allow paint to enter the air passages, thereby
reducing air flow and damaging the applicator
barrel or cause electrical shorting. Applicators
may be flushed in lieu of tilting, but they MUST
be either flushed or tilted BEFORE removing
the fluid nozzle!
C A U T I O N
!
With a bladed screwdriver, remove pressure
reducers by turning counter-clockwise from bar-
rel. Install the desired pressure reducer. Apply
suitable liquid pipe thread sealant to threads.
Install appropriate fluid nozzle, gently tightening
into place using the applicator wrench 19749-00.
Reinstall appropriate air cap and retaining ring.
(See “Nozzle Selection Chart” later in this section,
for proper combination of air caps, fluid nozzles
and pressure reducers).
For remote HVLP fan air applications fan control,
air pressure should not exceed 10 psi. Fan con-
trol pressure should be adjusted depending upon
pattern size desired.
> A counter-clockwise turn of the air cap may
loosen the fluid nozzle and cause air to get
into the paint or paint to cross over into the air
passages.
C A U T I O N
!
Applicator To Target Distance
Mount the applicator 6 to 12-inches maximum
from the target for best operation. (A higher
transfer efficiency will be achieved at the closer
target distance).
Ransburg
REA Automatic Applicators - Installation
18 AA-99-02.5