Lenovo Think station 4223 User Manual page 59

5. The rear fan assembly is attached to the chassis by four rubber mounts. Remove the rear fan assembly
by breaking or cutting the rubber mounts and gently pulling the rear fan assembly out of the chassis.
Note: The new rear fan assembly will have four new rubber mounts attached.
Figure 30. Removing the rear fan assembly
6. Install the new rear fan assembly by aligning the new rubber mounts with the corresponding holes in
the chassis and push the rubber mounts through the holes. Pull on the tips of the rubber mounts
until the rear fan assembly is secured in place.
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Chapter 5 Installing or replacing hardware
47