Lenovo ThinkStation 4215, Руководство по техническому обслуживанию аппаратной части, Страница: 123 / 180

Replacing the rear fan assembly
Attention
Do not open your computer or attempt any repair before reading and
understanding the “Important safety information” in the
ThinkStation Safety
and Warranty Guide that came with your computer. To obtain a copy of the
ThinkStation Safety and Warranty Guide , go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the rear fan assembly.
To replace the rear fan assembly, do the following:
1. Remove all media from the drives and turn off all attached devices and the
computer. Then, disconnect all power cords from electrical outlets and
disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 87.
3.
Locate the rear fan assembly. See “Locating components” on page 85.
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 86.
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.
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.
Figure 36. Removing the rear fan assembly
Chapter 9. Replacing FRUs
117