IBM eServer 240 xSeries User Reference Manual page 184

174
IBM xSeries User's Reference
b. Insert two M6 by 16-mm screws to secure the mounting bracket to the rack.
1
Right rear
2
Left rear
3
Right front
4
Left front
5
Hitch pin
c. Attach the free end of the cable-management arm to the rear of the left
slide rail, using a hitch pin 5 .