ABB IRC5 Product Manual page 266

4 Repair activities, controller IRC5
4.18. Replacement of fan in computer unit DSQC639
Continued
Removal (new design of the computer unit DSQC 639)
The procedure below details how to remove the fan in the computer unit.
264
Action
7. Remove the fan from the cover plate in arrow
direction.
Action
1.
DANGER!
Before any work inside the cabinet, please
observe the safety information in section
DANGER - Make sure that the main power
has been switched off! on page
2.
esd
WARNING!
The unit is sensitive to ESD, before handling
the unit please observe the safety information
in section WARNING - The unit is sensitive to
ESD! on page 29
3. Remove the computer unit.
4. Open the computer unit.
5. Disconnect the fan cable from the mother-
board.
Note/Illustration
xx0600002920
Note/Illustration
28.
Detailed in section
computer unit DSQC639 on page
Detailed in section
motherboard in computer unit
DSQC639 on page
3HAC021313-001 Revision: K
Replacement of
226.
Replacement of
235.
Continues on next page