Lenovo 4220, 4222, 4215, 4219, 4221 manual Removing the rear fan assembly

4.Disconnect the rear fan assembly cable from the system fan connector on the system board. See “Locating parts on the system board” on page 71.

5.The rear fan assembly is attached to the chassis by four rubber mounts. Remove the rear fan assembly by cutting the rubber mounts and gently pulling the rear fan assembly out of the chassis.

Figure 36. Removing the rear fan assembly

6.Install the new rear fan assembly by aligning the new rubber mounts that came with the new rear fan assembly with the corresponding holes in the rear of the chassis, and then push the rubber mounts through the holes.

Note: The new rear fan assembly will have four new rubber mounts attached.

7.Pull on the tips of the rubber mounts until the rear fan assembly is secured in place.

Chapter 9. Replacing FRUs 99