11239449 Installation, operation and maintenance manual – Squirrel cage motor – W Line - Horizontal and vertical l 19
3.3.4
Preparation for commissioning
3.3.4.1
Cleaning
The internal and external parts of the motor must be
free of oil, water, dust and dirt.
Remove the rust inhibitor from the exposed surfaces
with a cloth damped in a petroleum-based solvent;
Make sure that the bearings and cavities used for
lubrication are free of dirt and that the cavity plugs are
correctly sealed and tightened. Oxidation and marks on
the bearing seats and on the shaft must be carefully
removed.
3.3.4.2
Bearing lubrication
Use the lubricant specified for bearing lubrication.
Information on the bearings and lubricants are indicated
on the bearing nameplates, and the lubrication must be
done as described in section 7.10
of this manual, always
considering the type of bearing.
3.3.4.3
Insulation resistance verification
Before putting the motor into operation, the insulation
resistance must be measured according to section 3.3.3.2
of this manual.
3.3.4.4
Cooling system
If the motor remains out of operation for a long period (two
months or more), it must be ensured that water circulates
freely through the motor cooling system before putting it
back into operation.
3.3.4.5
Others
Follow the other procedures described in section 6 of this
manual before putting the motor into operation.
