Dell PowerEdge 2550 Rack Installation Instructions page 12

F i g u r e 1 - 4 . I n s t a l l i n g t h e S u p p o r t Tr a y i n a R a c k W i t h U n i v e r s a l - H o l e
S p a c i n g
12-24 x 0.5-inch
pan-head Phillips
screws (4)
If you are installing the support tray in a rack with wide-hole spacing, install the
3
four 12-24 x 0.5-inch pan-head Phillips screws provided to secure the support tray
using the bottom and the middle hole that you marked on the rack's front surface
(see Figure 1-5).
An internally threaded stud projecting from the front of the support tray flange
accepts the captive fastener on the front of the system.
1-6 Ra c k I n st allat io n G u ide
R