Motors – Operating and Assembly Instructions
12 B 1091 en-3118
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1.3 Correct handling of electric motors
All work must only be carried out with the power to the system switched off.
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1.3.1 Transport, storage
WARNING
Danger of falling
Incorrect handling during transport may cause the motor to fall or swing without control and therefore cause
severe, and possibly fatal injuries due to impact, crushing and other physical injuries. In addition, severe damage
to the motor and its surroundings are possible.
Therefore:
– Use all available carrying eyes on the motor during transport
– Do not attach any additional loads The lifting eyes are only designed for the weight of the motor
– Only use the intended carrying eyes or bolts for transporting attached machinery (e.g. gear unit
attachments)
– Sets of machinery must not be lifted by suspension from the individual machines.
To prevent damage to the motor, the motor must always be used with suitable lifting equipment. The
roller bearings should be replaced if the time from delivery to commissioning of the motor exceeds 4
years in good conditions (storage in dry, dust and vibration-free areas). This time is greatly reduced in
case of unfavourable conditions. If necessary, unprotected machined surfaces (flange surfaces, shaft
ends) must be treated with corrosion inhibitors. If necessary, the insulating resistance of the windings
must be checked ( 1.3.8 "Checking the insulation resistance").
Changes in comparison with normal operation (higher current consumption, higher temperatures or
vibrations, unusual noises or smells, triggering of monitoring devices, etc.) are indications that the
function is impaired. To prevent injury and damage, the responsible maintenance personnel must be
informed of these changes.
In case of doubt, switch off the motor as soon as the state of the plant permits.
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