Ransburg Aerobell 168 Atex Approved 13350 - Manual (Page 45)

Vibration Noise
If the Aerobell 168 is vibrating or making an un-
usually loud noise, it usually means there is an
imbalance situation. The atomizer bell may have
dried paint on it, or the bell may be physically
damaged, or there may be paint trapped between
the bell and shaft preventing the bell from properly
seating. If any of these conditions exist, they must
be corrected. Excessive imbalance caused by one
of these conditions may result in bearing damage
and turbine failure. Warranty DOES NOT cover
failure caused by imbalanced loading conditions.
To determine if the bell is dirty or damaged, re-
move the bell and turn the turbine on. If the noise
is eliminated, the bell cup is the problem. If the
noise continues, the turbine may be damaged
and should be inspected. Excessive air required
to achieve same speed may indicate a faulty
or contaminated turbine. DO NOT continue to
operate a noisy turbine.
PREVENTIVE
MAINTENANCE
(See “Preventive Maintenance Schedule”)
Daily/Weekly Maintenance
† Due to the close proximity of high voltage to
ground potential, a schedule must be developed
for equipment maintenance (cleanliness).
† Verify that high voltage is OFF and that shap-
ing air, bearing air, and turbine drive air are ON.
† Open the dump valve, if equipped, flushing
all paint from the supply lines and valve module.
† Open the solvent valve, if equipped, flushing
all paint from the fluid tube and through the at-
omizer bell assembly.
† Verify that high voltage is OFF, turbine drive
air is OFF, and that the bell cup has stopped
spinning. The bearing air and shaping air should
remain ON.
† Clean all external surfaces of the applica-
tor using a lint-free rag dampened with solvent.
External surfaces include the shroud and valve
module.
† After cleaning, all conductive residue must be
removed using a non-conductive solvent. since
electrostatic equipment is involved, these sol-
vent should also be non-polar.
† Inspect bell cup for nicks, dents, heavy
scratches, or excessive wear. Replace if nec-
essary.
W A R N I N G !
† Those solvents used for cleaning must
have a flash point at minimum of 5°C (9°F)
greater than ambient temperature. It is the
end users responsibility to insure this condi-
tions is met. Also, since electrostatic equip-
ment is involved, these solvents should
be non-polar. Example of non-flammable,
non-polar solvents for wipe down are: amyl
acetate, methyl amyl acetate, high flash
naphtha, and mineral spirits.
a. If using a rag to hand wipe the Aerobell,
turbine air should be off, but leave shaping
air on. 70-100 SLPM for shaping air is rec-
ommended.
b. Do not use conductive solvents such as .
MEK to clean the Aerobell 168.
Aerobell 168 - Maintenance
Ransburg
LN-9247-13 42