Lenovo ThinkSystem ST250 V2 Maintenance Manual page 212

To remove all electrical current from the device, ensure that all power cords are disconnected from
the power source.
• S014
CAUTION:
Hazardous voltage, current, and energy levels might be present. Only a qualified service technician
is authorized to remove the covers where the label is attached.
• S033
CAUTION:
Hazardous energy present. Voltages with hazardous energy might cause heating when shorted
with metal, which might result in spattered metal, burns, or both.
Attention:
• Read the "Installation guidelines" on page 85 to ensure that you work safely.
• Ensure that all adapters and other components are installed and seated correctly and that you have not
left loose tools or parts inside the server.
• Ensure that all internal cables are correctly routed (see Chapter 3 "Internal cable routing" on page 63).
• If you are installing a new server cover, attach the service label to the inside of the new server cover first if
necessary.
Note: A new server cover comes without a service label attached. If you need a service label, order it
together with the new server cover. The service label is free of charge.
Watch the procedure
A video of this procedure is available at YouTube:
DoEcxrm2zKNpaKOdZ3f8Qc
Procedure
Step 1. Install the server cover.
a. Align the tabs on the server cover with the corresponding slots on the top edge of the
chassis.
b. Pivot the server cover to close it.
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https://youtube.com/playlist?list=PLYV5R7hVcs-
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