Ransburg RMA Indirect A12869 - Manual (Page 55)

RMA-303 Indirect Charge - Maintenance
LN-9268-11.4 50
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W A R N I N G
GENERAL MAINTENANCE
Verify daily that the operating parameters
have not varied significantly from the normal.
A drastic change in high voltage, operating
current, turbine air, or shaping air, can be an
early indicator of potential component failure.
A laminated poster entitled “Rotary Atomizer
Checklist” (AER0075-02) is included with the
assembly in the Literature Kit to be posted
near the station as a handy reference.
Due to the close proximity of high voltage to
ground potential, a schedule must be devel-
oped for equipment maintenance
(cleanliness).
PREVENTIVE MAINTENANCE
Daily Maintenance
(During Each Preventive Maintenance
Break)
1. Verify that high voltage is OFF and that
both inner and outer shaping air, bearing air,
and turbine drive air are ON.
2. Open the dump valve, flushing all paint
from the supply lines and valve module.
3. Open the solvent valve, flushing all paint
from the fluid tube and through the atomizer
bell assembly.
4. Re-verify that high voltage is OFF, turbine
drive air is OFF, and that the bell cup has
stopped spinning. The bearing air and shap-
ing air should remain ON.
5. Clean all external surfaces of the applicator
using a lint-free rag dampened with solvent.
6. After cleaning, all conductive residue must
be removed using a non-conductive solvent.
Since electrostatic equipment is involved,
these solvents should also be non-polar
(Naphtha).
7. Inspect bell cup for nicks, dents, heavy
scratches, or excessive wear. Replace if nec-
essary.
8. Check bell cup tightness. Tighten to 50-70
lbs.- in. (5.65-7.91 Nm) torque.
9. Check the amount of paint build-up on the
outer protective cloth covers, if used. If exces-
sive, replace covers as required. If cloths are
wet, find source and replace with dry cloth co-
vers.
> The high voltage must be turned OFF be-
fore entering the spray area and performing
any maintenance procedures. Spray booth
exhaust fan(s) should remain ON while clean-
ing the equipment with solvents.
> Make sure high voltage is OFF be-fore ap-
proaching applicator with solvent cloth.
> DO NOT use reclaim solvent containing d-
Limonene. This can cause damage to certain
plastic components.
> DO NOT stop bell rotation by using a rag or
gloved hand against the bell cup edge.
> Maximum flow rate should not exceed
700 cc/min.
> Daily removal and soaking of the bell cup
may not be required if the bell cup is properly
flushed. However, the frequency of the feed
tube and internal motor shaft inspection indi-
cated below under weekly maintenance can
be done daily and later adjusted to weekly or
as required depending on the results of the
inspection.
> In the event the bell cup comes in contact
with a part, that cup should be checked for
damage and replaced if necessary before
continuing to spray.