9.3
Maintenance
Servicing involves activities and procedures for maintaining and restoring the specified
condition of the device.
Required tools
The following tools are required for replacing components:
● Wrench or socket wrench, width across the flats 10, 13, 16/17 and 18/19
● Hexagon-socket wrench (size 8)
● Torque wrench, 5 Nm to 50 Nm
● Screwdriver size 1 / 2
● Torx T20 and T30 screwdrivers
Tightening torques for current-carrying parts
When securing connections for current-carrying parts (motor connections, busbars), you
must observe the following tightening torques.
Table 9- 1
Screw
M6
M8
M10
M12
9.4
Replacing components
The following must be taken into account when the devices are transported:
• The devices are heavy or generally top heavy. The center of gravity is marked on the
• Due to their weight, the devices must be handled with care by trained personnel.
• Serious injury or even death and substantial material damage can occur if the devices
SINAMICS DCM Cabinet
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
Tightening torques for connecting current-carrying parts
WARNING
devices.
are not lifted or transported properly.
Maintenance and servicing
Torque
6 Nm
13 Nm
25 Nm
50 Nm
9.3 Maintenance
119