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. However, Lenovo will replace a Tier 2 CRU at your request
for no additional charge.
A working
Flex System Carrier-Grade
chassis 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.