10.01
The Electrical Motor
TI008G0001
General
The electric motor characteristics are given on the nameplate fixed to the motor itself, and specifically:
1. Model
2. Serial number
3. Protection degree
4. Insulation class
5. Maximum ambient temperature
6. Service
7. Service factor
8. Supply voltage [V]
9. Frequency [Hz]
10. Speed [rpm1]
11. Power [kW]
12. Power factor [cos _]
13. Rated intensity [A]
14. Motor weight
15. Type of bearings (front and rear)
Lubrication
The same plate also indicates the type of bearings mounted, for which it is recommended to use lithium
based grease for lubrication.
Greasing (where necessary) should be carried out when the motor is running.
The lubrication intervals should never be longer than the solar year.
Cooling
The motor is equipped with a cover and fan, to guarantee proper cooling. Check that dirt does not form
on this cover as it could reduce the cooling air passage.
Abnormal noises
Any vibration or abnormal noise is usually due to deterioration of the bearings. In this case it is rec-
ommended to replace the bearings rather than risking more serious problems to the motor or the ma-
chine.
Electrical checks
If the machine has been stored for a long period or in case of long stops in damp places, it is suggested
to measure the winding insulation value by applying 500 V d.c. voltage for 60 seconds.
The insulation should be at least 10 M
Ω
(MegaOhms) in warm conditions or 100 M
Ω
in cold condi-
tions.
Should these values not be detected and in case the motor has been exposed to damp, it is suggested
to dry it for 24 hours in a furnace at 100-110 °C.
If no furnaces are available, please contact the manufacturer.
WARNING !!!
Before starting the machine, verify that the nuts locking the terminals of the
power supply wires are well tightened.
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