Lenovo x3550 M4 Installation And Service Manual page 276

3. Press the handle while grasping the orange fan tabs on both ends of the
Figure 164. Fan removal
Results
If you are instructed to return the fan, follow all of the packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Replacing a hot-swap fan
Use this information to replace a hot-swap fan.
About this task
The server comes standard with four dual-motor hot-swap cooling fans. When
there is one microprocessor installed, install fan 1, 2, 3, and 5 for proper cooling.
Attention: To ensure proper operation, replace a failed hot-swap fan within 30
seconds.
To replace a hot-swap fan, complete the following steps:
Procedure
1. Read the safety information that begins on "Safety" on page vii and
2. Remove the cover (see "Removing the cover" on page 36).
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System x3550 M4 Type 7914: Installation and Service Guide
existing fan and pulling it up out of the server.
Attention: To ensure proper operation, replace a failed hot-swap fan within 30
seconds.
"Installation guidelines" on page 33.