15. Find the ground cable that you fed underneath the rack in step 5 on page 2-18.
Connect the Y-connector of the ground cable to the threaded side of the ground
cable lug, and then install and tighten the ground lug nut. The remaining end of
the ground cable will connect to the ground bus bar in step 17 on page 2-24.
2-22 7014 Model S00 Rack Installation and Service Guide