Acer Altos MU.R230E.001 - Manual (Page 139)

129
Installing the server in the system rack
Warning! To avoid injury, care should be taken when
pressing the inner rail release latches and sliding the
component into the rack. It also recommended that two or
more people help in installing the server to the rack to
minimize the chances of accidents.
1 Press the release latch on both sides of the rack mounting rails.
2 Carefully align the inner rails attached to the server with the fully
extended mounting rails on the rack, then push the server into the
rack until you hear an audible click.