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Step 8c Position both Extension Coupling Plates
(EQX12) and onto the Extension Frame
Mid Support (EQX4), as shown.
Step 9 Gently, flip the entire X-Frame Assembly back over. Gently
and evenly slide the Extension Coupling Assembly onto
the X-Frame Assembly. Adjust so that all the tabs are
inserted into the slots, as shown. Note that the Extension
Coupling Plates are on the outside of the X-Frame
Assembly.