Rockwell Automation 6181P-xxxx Integrated Display Computers, Series A to D - Manual (Page 37)

Publication 6181P-UM001G-EN-P - July 2008 37
Replace System Components Chapter 4
c. Fasten the slot cover bracket to the chassis by using four,
M3x6 panhead screws.
9. If installing the expansion kit on a Series A computer, you may
discard the replacement air duct and proceed to step 10.
If installing the expansion kit on a Series B computer, you must
replace the air duct that provides cooling air to the processor.
a. Remove the existing air duct from the back cover of the
chassis by removing the three screws.
b. Attach the replacement air duct to the back cover of the
chassis by using the same three screws.
c. Set the opening of the duct to its full-open position, if
possible.
If the installed PCI cards interfere with the fully-opened duct,
then adjust the duct to a lesser opened position to eliminate
the interference.