The astronauts also removed launch restraint pins on the four radial common berthing mechanisms of Unity.
The astronauts initially could not remove caps covering the valves, but later forced them off and completed the task.
After the astronauts removed the hatch to Spektr, Mr. Lazutkin would look inside using a flashlight.
When stopped, the astronauts would open the blankets, and manually remove excess dust from the cooling surfaces with hand brushes.
The astronauts removed older equipment, including the last of Hubble's original cameras, a malfunctioning power control unit and its solar arrays.
This was necessary to ensure a sufficient partial pressure of oxygen when the astronauts removed their helmets after reaching orbit.
The astronauts removed the 660-pound gyroscope, which failed in 2002, and replaced it with one taken up in the Discovery's cargo bay.
The astronauts also removed handrails from the outside of Soyuz, as those could have snagged during the undocking operation.
After the spacewalk, the astronauts remove the diapers and dispose them in a storage area in the craft.
After a tense but ultimately successful repair, the astronaut relaxes and removes the wrench from the last bolt.