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5.5.5
Mounting the drive output elements
The rotor is dynamically balanced. For shaft extensions with feather keys, the type of
balancing is specified using the following coding on the face of the drive end of the shaft
extension and on the rating plate:
• "H" means balancing with a half feather key (standard)
• "F" means balancing with a whole feather key
• "N" means balancing without a featherkey.
Figure 5-1
Risk of injury due to Incorrect installation or removal
The feather key may be flung out if the motor is operated without drive output elements,
such as coupling, etc. Carefully comply with the required measures.
This can result in death, serious injury or material damage.
• The general touch protection measures for drive output elements must be observed.
• Only operate the machine with the drive output element mounted.
• Drive output elements may only be pulled on or pulled off with the correct equipment.
• The feather keys are only locked against falling out during shipping. For test operation or
1LE5, 1PC4 shaft height 315/355
Operating Instructions, 10/2020, A5E41454666A
DE balancing type
WARNING
when commissioning without drive output element, carefully secure the feather key
using a suitable locking element. When doing this, take into account the type of machine
balancing.
Assembly
5.5 Installing the machine
57
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