Removing And Replacing Tier 1 Crus - Lenovo NeXtScale n1200 Installation And Service Manual

Step 3. Install the rear support brackets:
a. Align the right support bracket with the six slots on the rear of the chassis (outside of the
chassis wall).
b. Slide the support bracket forward until it locks into place in the slots.
c. Secure the support bracket to the rack with three M5 hex head screws.
d. Repeat steps a through c for the left support bracket.
Figure 14. Rear support bracket installation
e. Fit the lower support bracket to the chassis; then slide it forward against the rack rails and
secure the bracket with four M5 hex head screws.

Removing and replacing Tier 1 CRUs

Replacement of Tier 1 CRUs is your responsibility. If Lenovo installs a Tier 1 CRU at your request, you will be
charged for the installation.
A working NeXtScale n1200 Enclosure might have numerous power cables, Ethernet cables, and fiber cables
that are connected to components on the front and rear of the chassis:
• You might have to disconnect some of the cables when you remove and replace a Tier 1 CRU.
• Make sure that the surrounding cables allow adequate clearance before you remove and replace a Tier 1
CRU.
• Do not pinch, bind, or pull on the cables when you remove and replace a Tier 1 CRU.
• Do not allow unsupported cables to exceed a safe bend radius. For example, a disconnected fiber cable
might bend back on itself and become damaged.
The illustrations in this document might differ slightly from your hardware.
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Chapter 4 Removing and replacing components
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