1FT7 synchronous motors
Operating Instructions, 04/2010, 610.40075.40b
47
Servicing
9
9.1 Inspection and maintenance
9.1.1 Safety information
If you are unclear about anything, consult the manufacturer, specifying the motor type and
serial number, or arrange for the maintenance work to be carried out by one of the Siemens
Service Centers.
DANGER
Risk of electric shock when touching live parts
Electrical parts and components are at hazardous voltages. Touching these parts will result
in an electric shock,
which in turn causes death or serious injury.
Before starting work on the machines, make sure that the plant or system has been
disconnected in a manner that is compliant with the appropriate specifications and
regulations. In addition to the main currents, make sure that supplementary and auxiliary
circuits, particularly in heating devices, are also disconnected.
WARNING
Risk of burns
Some parts of the frame of electrical motors can reach temperatures in excess of 100°C.
Touching components when the machine is in operation can cause severe burns.
Do not touch frame parts while the machine is in operation or immediately after machine
operation. Allow parts of the frame to cool down before starting any work.
Safety regulations
Before starting any maintenance work, always observe the five safety rules:
1. Disconnect the system
2. Protect against reconnection.
3. Make sure that the equipment is at zero voltage
4. Ground and short-circuit
5. Cover or enclose adjacent components that are still live
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