Siemens SINAMICS S120 Equipment Manual page 296

Maintenance and servicing
6.4 Replacing components
CAUTION
When removing the unit, ensure that you do not damage any signal cables.
NOTICE
Take care not to cut yourself on the sharp edges inside the cabinet.
Installation steps for the fan, width 50 ... 200 mm
1. Before installing the fan, check the air flow direction
2. Insert the connector until it fully engages.
3. Insert the fan until it latches into place.
4. Close the fan cover.
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(the arrow on the fan must point towards the cooling fins).
Do not pinch the connecting cables.
CAUTION
The tightening torques specified in the table "Tightening torques for connecting current-
conducting parts" must be observed.
The screw connections for the protective covers must only be tightened finger-tight.
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A