Ransburg, Vibration noise, Turbine repair & rebuild – Ransburg Aerobell 33 AER5000, AER5001 User Manual
Page 26: High voltage connections

Aerbell 33 Rotary Atomizer - Maintenance
Ransburg
22
LN-9521-00.4
VIBRATION NOISE
If the Aerobell 33 is vibrating or making an unusually
loud noise, it may mean that there is an unbalanced
situation. The bell assembly may have dried paint
on it, 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
prior to further operation. Do not continue to op-
erate a noisy turbine. Warranty does not cover
failure caused by imbalanced loading conditions.
W A R N I N G
If a bell cup comes off a rotating shaft
because of motor seizing or any other rea-
son, the bell must be returned to Ransburg
for inspection and evaluation to determine if
the bell can be used in operation.
!
W A R N I N G
A bell assembly that is cross-threaded
on the shaft can damage the bell, motor or
shaping air housing and may come off the
shaft while rotating.
!
Care must be taken when mounting the
bell assembly onto the motor shaft. The
bell should turn on freely for several turns
or until it fully bottoms on the motor shaft. If
resistance is felt when the bell is first being
turned onto the shaft, do not proceed further,
the bell may be cross-threaded on the shaft.
Remove the cup and carefully reinstall. If it
is still difficult to turn, replace the bell.
C A U T I O N
!
Do not use abrasive materials which will
scratch or damage the plastic bell, or which
will scratch the semiconductive coating on
the surface of the bell.
Before reinstalling the bell onto the shaft,
check and clean the tapered mating surfac-
es of the turbine shaft and bell for any paint
residue.
Using an atomizer bell with paint buildup may
cause a bell imbalance. An imbal-anced bell
may cause bearing damage and turbine fail-
ure, or may create mechanical stress on the
plastic bell when operating at high speeds.
Excessive paint residue caught between the
internal tapered surface which seats in the
motor shaft can prevent the bell from seating
properly and result in an unbalanced turbine
condition.
C A U T I O N
!
TURBINE REPAIR &
REBUILD
Turbine field repair or rebuild only after factory
warranty expires. Any attempt to disassemble
turbine during warranty period will void
warranty. (3 years or 15,000 hours).
Contact your distributor or Ransburg for turbine
rebuilding instructions.
HIGH VOLTAGE
CONNECTIONS
Use a small amount of light dielectric grease,
part number 59972-00, on the high voltage cable
ends to prevent moisture damage and ensure the
integrity of the electrostatic system.