Jake,
I wish it were the case of just removing a pin, etc.! I'm not sure how many other brands of catamarans use the Prindle type of setup--perhaps no other brand does. At any rate, you'd have to see it to understand their odd system. The tying of knots has to do with connecting the ropes which raise and lower the rudders, and those ropes are woven through the housing bolted on the transom which holds the rudders...

Kevin