Siemens S120 Manual page 458

Service and maintenance
11.2 Service and maintenance for components, Blocksize format
1. Remove the fixing screws.
2. Remove the connector.
3. Remove the fan.
4. Insert the new fan.
5. Insert the connector.
6. Tighten the mounting screws (0.4 Nm tightening torque).
Figure 11-3
458
PM340 fan replacement, frame size FSB/FSC (0.4 Nm tightening torque)
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
AC Drive