Operating Manual
© Dürr Systems AG
EcoBell2 SL EC - Rotating Atomizer with External Charging
Operation
Document No.: MRA00001EN
Version:: 07
•
As of:: 01/2020
69 / 156
6.2.1
Valves
All valves are closed in the rest position. Compression springs hold
the valves closed in rest position. Should a compression spring fatigue
or even break, it affects the functions of the atomizer and endangers
the paint finish. However, a broken valve spring will not create
sources of ignition.
Check the functioning of the valve at regular intervals (follow the
maintenance schedule).
6.2.2
Noises
During constant painting operation, the operating noise from the
atomizer is also uniform. If irregular noises are noticed, the cause
must be found out and rectified.
6.2.3
Vibrations
Bell disk and turbine shaft must always rotate without vibration.
Incorrectly installed bell disks and damaged turbines cause noticeable
vibration, especially when starting from low speeds.
6.2.4
Cleanliness
The surface of the atomizer must always be kept clean. Dirt impairs,
among other things, the effect of the high voltage. Dirt particles that
detach from the atomizer can get on the painted surface.
The atomizer must be cleaned at regular intervals. The intervals are
derived from the amount of pollution and should be adapted according
to operation.
6.2.5
Hoses
The condition of the hoses must be checked at regular intervals. The
hoses must be replaced in time. Damage to the hoses leads to
malfunctions of the atomizer.
6.2.6
Grounding and High Voltage
Ensure that all conductive parts of the atomizer are electrically
connected with each other. Check mutual electrical resistance of the
components.
Please note the information on measuring voltage and resistance in
the chapter "Resistance Measurement" and the information provided
on the measured values in the chapter "Operational Parameters."
Please note the information on the operation of the high voltage
generator and the other components of the high voltage supply.
Note the prescribed tests and intervals in the applicable rules and
standards.
