After Canadarm2 released S6 and moved away, the spacewalkers plugged in power and data cables to connect the new hardware and remove launch restraints from the photovoltaic radiator and the boxes containing the new solar arrays. They also deployed the Beta Gimbal Assemblies, which contain the masts that support the solar arrays, and position the boxes for later deployment.

Moving one of the station's two Crew and Equipment and Translation Aid - or CETA - carts. The carts were moved to the port side of the station's truss during the previous mission to give the robotic arm's mobile transporter the best possible access to the starboard truss for the installation of the new truss segment and solar arrays. With that work done, one of the carts was moved back to the station's port side, leaving a cart for use on either side of the truss.