GRAPHTEC FC 4500 Series Service Manual page 71

6 REPLACEMENT PROCEDURES
(5) Open the bottom chassis full.
Fan
(6) Disconnect Fan cable from the Main board.
(7) Remove the two M3L306 binding head screws holding the Fan.
Bottom Chassis
M3L30 binding head screw
(8) Detach the Fan from bottom chassis.
How to install the Fan
(1) Reattach the Fan in the reverse order in which it was detached.
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