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2.0 HANDLING AND STORAGE
When lifting the motors, always use all lifting eyes provided. Prior to lifting the motor make sure that
the lifting eyes are installed correctly and tightened. Never lift a motor using the rotor shaft and fan
cowling. In addition care must be taken during lifting and lowering of the motor to avoid any shocks
or vibrations which can result in bearing damages.
It is recommended that all motor be stored in a dry, dust free environment and free of excessive
vibrations.
If the DE and NDE bearings are of the sealed types, it is recommended that they are checked if stor-
age has 1 year and replaced if storage has exceeded 2 years from date of motor manufacture.
If the motors have the regreasable bearings, then the recommendation is to replace the grease after
2 years of storage.
The service life of the motor can be considerably reduced if the storage period extends beyond 2
years in environments with high moisture and dirt. If necessary, the insulation resistance of the wind-
ing could be measured determine the health of the motor prior to installation and start-up, (see Sec-
tion 3.5. for reference values).
Machined surfaces (flange, DE rotor shaft) are treated at the factory with anti-corrosive agent to pre-
vent rusting. However these surfaces should be retreated during storage as deemed necessary. It is
recommended to rotate motor's shaft regularly to ensure grease distribution, and to prevent static
impression on bearing rings.
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