Apple Mac 8600 - Manual (Page 109)

Take Apart Air Deflector (PM 8600 Only) - 11
Air Deflector (PM
8600 Only)
Before you begin, remove
the side access panel.
Note:
This air deflector,
which redirects the air flow
inside the computer
chassis, is used in the Power
Macintosh 8600. The
deflector installs flush
against the inside chassis
underneath the logic board.