Remove the wooden pegs, or disengage the metal clips securing the futon frame in the upright position. Lay the futon frame so it is in the flat position. Remove the mattress from the futon frame, and set it to the side.
Remove the two to four bolts securing the spring support to the futon frame. Lift the spring support off of the frame, and set it to the side.
Loosen the bolts or screws fastening the arm rests and support to each side of the futon's central frame. Remove each arm rest from the futon frame assembly.