Siemens PC 670 - Manual (Page 85)

Maintaining and Extending the Computing Unit Release 04/02
4-25 Panel PC 670 Computing Unit, Equipment Manual
4.9 Removing and Installing the Fan
The computing unit is cooled by means of a fan, which extracts hot air out of the
housing.
1. Open the housing as described in section 4.1.
2. Disconnect the fan cable connector from the motherboard.
3. The fan is secured to the housing by two plastic rivets. Undo the rivets by
pressing out the gudgeon from the rear of the rivet shank.
4. Remove the fan.
5. Proceed in the reverse order for assembly.
Unit fan Plastic rivets
Figure 4-20 Removing and installing the fan
Notice
Fit only a fan of the same type!
!
Caution
To ensure that the device is adequately cooled, ensure that the running direction of
the fan is correct when installing.
Ensure that the arrow on the fan is pointing towards the housing wall.