Fujitsu PRIMERGY TX2550 M4 - Replacing a PSU; Preliminary Steps; Note for Servers Using CMA (Cable Management Arm)

TX2550 M4 Upgrade and Maintenance Manual 147
Power supply unit (PSU)
6.2.3 Replacing a PSU
V CAUTION!
● When replacing a PSU in a non-redundant PSU configuration, the
server must be switched off first.
6.2.3.1 Preliminary steps
Ê "Locating the defective server" on page 49
Ê "Locating the defective component" on page 51
Ê Check which PSU is defective.
A PSU is defective when the PSU status indicator lights orange. For more
information, see section "Indicators on PSUs (slide-in units)" on page 512.
Ê Only when replacing a PSU in a non-redundant configuration: "Shutting
down the server" on page 52
Ê Remove the power cord from the defective PSU, see section "Disconnecting
the power cord" on page 53.
6.2.3.2 Note for servers using CMA (Cable Management Arm)
Regarding of replacing PSUs, additional tasks are needed, due to an
interference between CMA stopper and the PSUs.
Ê Push the lock spring inward to unlock the CMA stopper (see figure 66).
V CAUTION!
In case of not enough space at the under side, unlock the CMA
stopper of the server below and pull out the CMA to the rear side
Ê Remove the CMA stopper with the mounted crossbar (see figure 67).
Ê Hold the CMA stopper, the crossbar and the CMA including cables in the one
hand.
Customer Replaceable Unit
(CRU)
Hardware: 5 minutes
Tools: tool-less