Autohelm/Nautech wind vane steering problem

[kiwicol]

An Autohelm/Nautech wind vane steering system needed a new cord (from the vane mounting tube to the autohelm and tiller). After removing the cord, the while thing came to pieces and I can't find any instructions regarding the correct re-assembly. The tube on which the plastic 'feather' vane is mounted is about a meter long and has a plastic covered 'frame' internally with a spring and wheel around which the cord must pass. Does anyone have a link to the actual assembly of this?