Siemens SIMATIC INDUSTRIAL PC PCIL43 - Manual (Page 60)

Maintenance and service
11.1 Removing and installing hardware components
SIMATIC Rack PC IL 43
11-6
Operating Instructions, Edition 09/2005, A5E00432875-01
Installing the fan
Notice
Always install a fan of the same type!
Caution
Ensure that the arrow on the fan points away from the fan bracket.
11.1.6 Processor replacement
Caution
The processor replacement may only be carried out by authorized qualified personnel.
Preparation
1. Unplug the device from mains.
2. Open the device.
Removing the processor
How to remove the processor
1. Unhook the fan holder on the heat sink
and pull off towards the front.
2. Disconnecting the processor fan
connector
3. Loosen the four screws and remove the
heat sink.