Here are some more images to support dieselboys image.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/09/full-4730-24303-orion_cone_drive.png)
Exploded clutch arm parts.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/09/full-4730-24304-4th_1.jpg)
Clutch arm unit.
Been a while since I've done this, but I would remove your cutting deck.
Loosen engine mounting bolts, slide engine back to loosen belt.
Remove belts from clutch arm.
Them you should be able to remove the linkage from the pedal and clutch arm bolt.
You should be ale to remove the unit from underneath.
Now you are into stripping it down, to clean and inspect all parts, replace your cone.
Did you get written instructions with the new cone?
From Mark.