Maintenance
6.1 Maintenance
A5E01083943A AB
72 Siemens AG Operating Instructions 2.02 1FW4
from a rotor that has been removed. The rotor must, therefore, only be removed at the plant
where it was manufactured or by authorized specialist workshops.
DANGER
Electrical shock hazard!
Any movement of electrically conductive material in relation to permanent magnets leads to
induced voltages. This also causes a risk of an electric shock.
[ID 821.01]
See also
Magnetic fields of 1FW4 motors (Page 9)
6.1.2 Preparations for maintenance
Safety precautions prior to starting maintenance work
WARNING
Motor energized
Before starting any work on the motors, make sure that the system has been isolated from
the power supply in accordance with the regulations. Pay particular attention to the main
circuits and also ensure that any supplementary and auxiliary circuits are also de-
energized, and in particular, the anti-condensation heating.
Maintenance work may only be carried out when the motor is stationary. Note the
"protection concept" in the product catalog.
CAUTION
Danger of burns
Certain parts of the motor may reach temperatures above 80°C. Physical contact with the
machine could result in burn injuries! Measure the temperature of parts before touching
them.
CAUTION
Cleaning with compressed air
When cleaning with compressed air, ensure there is an adequate exhaust system and
observe personnel protection measures. For example, wear protective eyewear, a
breathing filter or something similar!
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