1. Move the 1st carriage so that screw [A] is visible at [B].
  2. Remove front and rear springs [A] and [B] (x2).
  3. Loosen tension bracket screws at front [A] and rear [B].
  4. Remove rear and front retaining brackets [A] and [B] (x2).
  5. Remove the tip of the rear end of the wire (rear and front).
  6. Unscrew wire pulleys at rear and front [A] and [B], and then the drive pulley [C].
  7. Remove the wire pulleys from the shaft.