Siemens SIMOTICS XP Operating Instructions Manual page 95

Hazardous substances
Chemical substances required for the setup, operation and maintenance of machines can
present a health risk. Poisoning, skin damage, cauterization of the respiratory tract, and other
health damage may result.
• Read the information in these operating instructions and the product information supplied
by the manufacturer.
• Observe the relevant safety regulations and wear the personal protective equipment
specified.
Substances that can be easily ignited and are flammable
Chemical substances required for the setup, operation and maintenance of machines may be
flammable. Burns and other damage to health and material may result.
• Read the information in these operating instructions and the product information supplied
by the manufacturer.
• Observe the relevant safety regulations and wear the personal protective equipment
specified.
Risk of explosion if the permissible axial and radial forces are exceeded
• Carefully comply with the permissible values for axial and radial forces (Page 25).
• For cylindrical rolling bearings, carefully comply with the minimum radial load levels.
• In operation, comply with the permissible vibration values in accordance with ISO 10816-
3.
Risk of explosion as a result of premature bearing failure
• Use insulated bearings if bearing currents occur. Carefully comply with the information in
Chapter Converter operation (Page 46)
• Carefully comply with the specified grease change intervals, relubrication intervals and oil
change intervals.
Explosion hazard if the bridging is removed from the insulated bearing
Removing the factory-fitted bridging of the insulated bearing leads to potential differences
between the rotor and the grounded motor. This can cause the generation of sparks, which
especially in an explosive atmosphere can ignite surrounding dust or combustible gases.
Explosions can occur. There is also a risk of an electric shock. Death, serious injury, or
material damage will result.
• Do not open the bridging of the bearing insulation during operation.
1MB..5/6 shaft height 71 ... 355
Operating Instructions, 10/2021, A5E41926185A
8.1 Safety instructions for operation
Operation
93