Airmar speed / temp sensor 20-399-01

[Boathook]

I'm wondering whether the paddle wheel shaft has got muck on it as it, the speed occasionally stops working. I have been creating new channels in mud recently hence muck on shaft. I can't find anything on line at present but is the shaft removal? Its only around 2 to 3 mm diameter so persumably would have to be 'punched' out.
I'm on the boat with limited and sluggish Internet so any acknowledgement may take a day or two. The red is antifoul and not on the paddle wheel!

 

[shaunksb]

Yes they are. Punch out by hitting the recessed end just half a centimetre or so then you should be able to pull it out the rest of the way with pliers.

I had to clean my new one up last week because antifoul clogged it up.

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[LiftyK]

Mine stopped working after drying out on a mix of sand and mud. It became very stiff. No muck was visible. After spending five minutes swishing it in a bucket while trying to spin it, the tiny particles restricting motion were dislodged and it started spinning freely again. Do give it a good long swish in case you don’t need to remove the pin.

 

[Boathook]

Mine stopped working after drying out on a mix of sand and mud. It became very stiff. No muck was visible. After spending five minutes swishing it in a bucket while trying to spin it, the tiny particles restricting motion were dislodged and it started spinning freely again. Do give it a good long swish in case you don’t need to remove the pin.

I have done that but it seems to be getting more 'sensitive' to my creating channels in mud! And before comments I will continue to try to enter places on a rising tide where appropriate.