Device maintenance and repair 
  7.4 Removing and installing hardware 
SIMATIC IPC627D/827D 
Operating Instructions, 09/2014, A5E32990859-AB 
87 
The figure shows the correct mounting position. 
●  Direction of flow: Make sure that the blades 
① of the power supply fan are on the outside 
of the housing. 
●  Run the power supply cable 
② along the housing edge and fasten any excess cable as 
loop as shown in the illustration. 
 
 
Removing and installing the device fan 
Requirement 
●  The device is opened. 
 
 
 and 
remove the air guide pulling it 
up vertically.