Servicing - Siemens SINAMICS S120 Equipment Manual

9.3

Servicing

Servicing involves activities and procedures for maintaining and restoring the operating
condition of the devices.
Required tools
The following tools are required for replacing components:
• Spanner or socket spanner (w/f 10)
• Spanner or socket spanner (w/f 13)
• Spanner or socket spanner (w/f 16/17)
• Spanner or socket spanner (w/f 18/19)
• Hexagon-socket spanner (size 8)
• Torque wrench up to 50 Nm
• Screwdriver size 1 / 2
• Screwdriver Torx T20
• Screwdriver Torx T30
Tightening torques for current-carrying parts
When securing connections for current-carrying parts (DC link, motor connections, busbars),
you must observe the following tightening torques.
Table 9-1
Chassis Power Units Liquid Cooled
SINAMICS S120 Equipment Manual, Edition 04/2007, 6SL3097-2AM00-0BP2
Tightening torques for connecting current-carrying parts
Screw
M6
M8
M10
M12
Maintenance and servicing
Torque
6 Nm
13 Nm
25 Nm
50 Nm
9.3 Servicing
9-3