Fujitsu PRIMERGY TX2550 M4 Upgrade And Maintenance Manual page 60

Basic hardware procedures
Figure 8: Removing the rack front cover (A)
Ê Remove two screws from the side brackets on either side.
Figure 9: Removing the rack front cover (B)
Ê Press down on the upper locking latch (1) while slightly folding out the rack
front cover.
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Upgrade and Maintenance Manual TX2550 M4