Maintenance - Siemens SINAMICS G150 Operating Instructions Manual

11.3

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:
● 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
● Screwdriver size 1 / 2
● Screwdriver Torx T20 / T25 / T30
A socket wrench set with two long extensions is recommended.
Tightening torques for screw connections
The following tightening torques apply when tightening connections of operating current-
conducting parts (DC link/motor connections, general busbars), non-operating current-
conducting parts (ground connections, ground terminal connections), and general steel
threaded connections.
Table 11- 1
CAUTION
The threaded connections for the protective covers made of Makrolon may only tightened
with 2.5 Nm.
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
Tightening torques for screw connections
Thread Ground connections, protective
conductor connections, steel
(fault current-conducting)
M3
M4
M5
M6
M8
M10
M12
M16
threaded connections
1.3 Nm
3 Nm
6 Nm
10 Nm
25 Nm
50 Nm
88 Nm
215 Nm
Maintenance and servicing
11.3 Maintenance
Plastic, busbars (operating current-
conducting)
0.8 Nm
1.8 Nm
3 Nm
6 Nm
13 Nm
25 Nm
50 Nm
115 Nm
533