The electric motor has roller or ball bearings, whenever you need to be transported should check whether the electric motor shaft is locked effectively, because the shaft locked electric motor will not bring the electric motor bearing damage. Ideally, the electric motor locking is done with the device that is delivered together with the electric motor.
The electric motor should always be clean, free of dust, dirt and oil, but if the electric motor present dirt, cleaning should be done immediately and it is ideal to use brushes or clean cloths that are of cotton.
If the dust that is in the electric motor px 120 is not abrasive, it is necessary to make use of compressed air blasting and so the dirt from the fan cover is removed and so also all other parts of the electric motor.
If the electric motor has heat exchanger tubes should also always be clean and free as well it can be exchanged effectively the hot air through the cold air. To clean the tubes, one can use a rod with a round brush at the end where the tubes are introduced and thus all the accumulated dirt is removed.