Lenovo 3980 - Manual (Page 84)

Figure 19. Removing the system fan assembly
5. Install the two new short rubber mounts to the new system fan assembly.
Note: The new system fan assembly comes together with four new rubber mounts: two short rubber
mounts and two long rubber mounts.
Figure 20. Installing the short rubber mounts
6. Install the two new long rubber mounts by pushing them through the holes on the rear of the chassis. If
necessary, pull the rubber mounts through the holes from the inside of the chassis to make sure that the
rubber mounts are installed in place.
7. To install the new system fan assembly into the chassis, align the holes on the new system fan assembly
with the long rubber mounts in the chassis. Then, push or pull the rubber mounts through the holes until
the new system fan assembly is secured in place.
78 Hardware Maintenance Manual