Corrective Maintenance; Instructions For Repair; Storage - Siemens SIMOTICS SD Operating Instructions Manual

Maintenance

9.4 Corrective maintenance

9.4 Corrective maintenance
9.4.1

Instructions for repair

Qualified personnel
Only appropriately qualified persons should be deployed to commission and operate
equipment. Qualified persons, as far as the safety instructions specified in this manual are
concerned, are those who have the necessary authorization to commission, ground and
identify/tag equipment, systems and circuits in accordance with the relevant safety
standards.
Instructions relevant to safety
High voltages
Electrical machines contain live parts. Fatal or severe injuries and substantial material
damage can occur if the required covers are removed or if the machines are not handled,
operated, or maintained properly.
Before starting to work on the motor, bring it into a no voltage condition, and only open the
covers of active parts once this has been done.
Note
Observe the information in Chapter Preparing for use.
See also
Preparing for use (Page 27)
9.4.2

Storage

Take the bearing used up to frame size 90 only for special versions, and generally for frame
size 100 and higher from the rating plate.
Bearing lifetime
Prolonged storage periods reduce the useful lifetime of the bearing grease. In the case of
permanently lubricated bearings, this leads to a shorter bearing lifetime.
Bearing or grease replacement is recommended after a storage time of 12 months, for
longer than four years, replace the bearings or grease.
96
WARNING
Operating Instructions, 05/2014, 5 610 00000 02 000
Low-voltage motors