Unscrew the Pushbutton cap (#1) and remove the Spring (#11), remove the screw (#4) and lock plate (#7), remove the handle (#9), unscrew the star drag (#11), remove the elastic spring/washer (#13).
Now flip the reel upside down and slightly push in and out on Drive gear guide (#25) do this kind of fast in order to remove the ball bearing (#14), continue this to remove the one way clutch (#15) and the one way clutch ring (#16).
Now flip the one way clutch (#15) 180 degrees, so that the plastic seal on the clutch is facing in towards the reel. Slide the clutch ring (#16) and the one-way clutch back onto retrieve guide (#25) and continue reassembling the reel in reverse order.