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- The feather keys are only secured against falling out during shipping. If you commission a machine
without an output element, the feather keys must be secured to prevent them from being thrown out.
The rotors are balanced dynamically. The balancing quality corresponds to vibration severity grade "A" for
the complete machine as standard. The optional vibration severity grade "B" is indicated on the rating
plate.
The declaration regarding the type of featherkey for balancing is generally marked on the rating plate and
optionally on the face of the shaft end.
Designation:
- As a standard measure, balancing is carried out dynamically with a half featherkey (code "H") in accor-
dance with ISO 8821.
- "F" means balancing with a whole featherkey (optional version).
- "N" means balancing without a featherkey (optional version).
5.4 Alignment and fastening
General
When aligning and fastening the machine, please bear the following in mind:
The machine must be level.
•
Feet and flanges must be fastened securely.
•
Alignment must be precise in the case of direct coupling.
•
Fastening surfaces must be clean
•
Look out for any damage to paint; this must be rectified immediately and correctly.
•
Look out for traces of anti-corrosion protection agents; these must be removed using mineral
turpentine.
•
Look out for installation-related resonances with the rotating frequency and double line frequency;
these must be prevented.
•
Listen for unusual noises when turning the rotor manually.
•
Check the direction of rotation with the machine decoupled.
•
Avoid using rigid coupling measures.
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