You can replace the fan units during operation.

The following tools are required for installation:

•T-25 Torx driver

Removing the fan unit

1.Open the rear MCS door.

NOTE: The number of horizontal brackets varies depending on the position of the fan unit (top, middle, or bottom).

2.Using a T-25 Torx driver, remove the four Torx screws securing the horizontal shipping bracket to the MCS frame.

Removal and replacement procedures 51