IBM 9080-M9S Manual page 610

Figure 526. Lifting the chassis away from the system backplane
7. Remove the system backplane.
Remember: After the chassis and all of the parts are removed, the system backplane requires two
people or a lift tool to remove it. These instructions assume two people are performing the removal. If
you're using a lift tool, refer to the lift tool documentation for instructions to use the lift tool.
a) Pull the release latch (A) on each rail.
b) As you carefully lift the system backplane off the rails., keep the back end low and the front end
high.
Figure 527. Lifting the system backplane off the rails
604 Power Systems: Removing and replacing parts in the 9080-M9S system