1. (IM 550F/600F/600SRF only) Remove the SPDF unit. (SPDF Unit)
  2. Remove the left lower cover. (IM 550F/600F/600SRF: Left Lower Cover, P 800/801: Left Lower Cover)
  3. Remove the controller box. (IM 550F/600F/600SRF: Controller Box (IM 550F/600F/600SRF), P 800/801: Controller Box (P 800/801))
  4. Remove the PSU fan (FAN3). (PSU Fan (FAN3))

  5. Remove the connector cover [A] from the rear side of the machine. (hook×1)

    • When removing the connector cover, insert the flathead screwdriver into [A] and release the hook of the connector cover.

  6. Disconnect the two connectors.
  7. Release the harness [A] from the harness guide.

  8. Remove the ground screw [A] and disconnect the two connectors.

    • When installing, wind the harness [A] around the clamp [B] twice, as shown below.

  9. Disconnect the connector.
  10. Remove the PSU (PCB18) [A] and bracket [B] from the mainframe. (hook×3)
  11. Close the rear upper cover [A].
  12. Close the front cover [A].
  13. Stand the main unit front side up.
  14. Remove the bottom plate [A].
  15. Remove the bottom plate [A].
  16. Remove the wire cover [A]. (hook×2)
  17. Disconnect the connector.
  18. Remove the seven screws from the duplex unit [A].
  19. Remove the duplex unit [A] while removing the shaft [B] from the coupling [C].