Siemens PM330 Hardware Installation Manual page 74

Service and maintenance
5.4 Replacing additional components
Preparatory steps
● Disconnect the built-in unit from the power supply.
● Allow unimpeded access.
● Remove the protective cover.
Opening the device
1. Remove screws
screws; frame size JX: 4 screws).
2. Remove screws
3. Slightly raise the front cover and remove it.
The diagram on the righthand side shows the components that can be replaced.
Mounting the covers
Covers are mounted in the inverse sequence to their removal.
Tightening torque for the cover screws:
①
●
②
●
72
①
, and remove the upper and lower covers (frame sizes GX, HX: 3
②
hidden behind the lower cover.
: 6 Nm.
: 5 Nm
Hardware Installation Manual, 12/2018, A5E32844552B AF
Power Module PM330