In the many years I have been shooting, never fixed a 240. Bought one when they came out, but did not keep it long. Yesterday had fix one that would not cock, was a bit concerned about stripping it, but turned out not difficult. Put it together and was amazed it is putting out 4.9 ft.lb. from that short barrel. Took a pic of it in parts as there only seems to be one other on the net.
Baz
https://i.imgur.com/jUnI5IG.jpg