Fujitsu PRIMERGY TX2550 M4 Upgrade And Maintenance Manual page 144

Power supply unit (PSU)
Figure 68: Removing the PSU
Ê Remove the PSU and install the dummy cover carefully.
I
Note for PSU1: Remove the PSU1 carefully while lifting PSU1 and
bringing PSU1 to the right, in order to avoid interference
Ê Mount the complete assembly (CMA stopper, the crossbar and the CMA)
again into the rail.
144
Upgrade and Maintenance Manual TX2550 M4