Rockwell Automation 1746-Ax SLC 500 Modular Chassis/ Instructions - Manual (Page 8)

8 SLC 500™ Modular Chassis
Publication 1746-IN016C-MU-P - December 2003
3. Slide the chassis over the installed hardware and tighten the screws.
4. Leaving far-left and far-right tabs open for grounding, install the remaining
tab hardware (for a four-slot chassis, leave both tabs open).
ATTENTION
!
If the chassis mounting tabs do not lay flat before the
screws are tightened, use additional washers as shims
so that the chassis will not be warped by tightening
the screws. Warping a chassis could damage the
backplane and cause poor connections.