1. Open the controller box (Opening the Controller Box)
  2. At the front, remove the cover and pull out the PCDU. This separates the drive shaft from the drum.
  3. Next, at the rear, disconnect the IOB (x2, x2).
  4. Disconnect the IOB [A], [B], [C], [D] (x4).
  5. Lower the IOB bracket (with PCB attached) until it stops.
  6. To the right of the flywheel, disconnect two harnesses (x2).
  7. Upper right (x1).
  8. Lower right (x1).
  9. Bottom (x1).
  10. Bottom left (x1).
  11. Left (x1).
  12. Remove the main motor unit.
  13. Lay the motor mount on a flat, clean surface.
  14. Disconnect the motor drive board [A] (x1).
  15. Disconnect the motor [B] (x4).
  16. Lay the motor and attached drive board on a flat clean surface.

    Re-installation
  1. The development motor must be installed carefully to make sure that the drive gear of the motor [A] is correctly engaged with the belt [B].
  2. Remove the screw and the spring at [A] (x1,x1).
  3. Behind the frame, push the tension bracket [B] in the direction of the arrow to release tension on the belt.
  4. Mount the motor.
  5. Be sure that the gear [A] engages correctly with the slackened belt [B], and then attach the motor screws.
  6. Rotate the motor [A] and make sure that gears and both rotate. If both gears rotate, the motor is engaged with the belt.