OK guys, here you go. I have finally completed my rebuild instructions for the ST-50 wind transducer. Attached are my instructions and two other documents and a RayMarine link that I found on the ‘net that also have good information. Before you actually break out the tools and begin the rebuild, I highly suggest that all documents are read carefully.
This rebuild process is not for the faint of heart. If you are not comfortable working with delicate electronic assemblies, then this may not be for you.
I have rebuilt 3 of these wind transducers, two were ST-50 and one was an early ST-60 unit. All are working like brand new.
Included in my instructions are the sources for the bearings and O-rings.
I have two complete sets of bearings and O-rings that are up for grabs if you don’t want to source the correct parts yourself. I have listed them in Gear for Sale.
Good luck. Don't hesitate to contact me if you have questions.