Siemens SIMOTICS FD 1MQ1 Operating And Installation Instructions page 134

Maintenance
9.2 Corrective Maintenance
Danger when a rotor falls
Eyebolts in accordance with DIN 580 are unsuitable for suspending the rotor. The rotor can fall
off. This can result in death, serious injury or material damage.
● Use lifting gear which is suitable for the rotor weight and direction of loading.
Machine damage caused by improper repair work
Improper servicing work can damage the machine. This can cause damages and/or faults
which can result in eventual or immediate death, serious injury, or property damage.
● Properly assemble or disassemble the machine.
● Use only suitable tools and equipment.
● Immediately replace damaged components.
● If necessary, contact the Service Center (Page 171).
Danger as a result of rotor falling out
If the motor is in a vertical position, the rotor can fall out while work is being performed on the
locating bearing. This can result in death, serious injury or damage.
● Support or unload the rotor when carrying out work with the machine in a vertical position.
Explosion hazard due to increased surface temperature
Components within the motor may be hotter than the maximum permissible surface
temperature for the enclosure. In an explosive atmosphere, dust can ignite and an explosion
occur. This can result in death, serious injury or material damage.
● Do not open the motor in an explosive and dusty atmosphere when it is still at normal
● Allow the machine to cool down before opening it.
Explosion hazard due to improper maintenance of the anti-condensation heating
If the anti-condensation heating is not correctly repaired, e.g. if unauthorized or untested spare
parts are used, this can result in explosions during operation in a potentially explosive
atmosphere. This can result in death, serious injury or material damage.
● Only appropriately trained specialists in the service center (Page 171) are authorized to
● Only use authorized and tested spare parts.
134
WARNING
operating temperature.
repair anti-condensation heating systems. The anti-condensation heating must then be
subject to a routine test, which requires extensive specialist knowledge.
SIMOTICS FD 1MQ1
Operating Instructions 01/2019