18-03-2023, 11:45 AM
(This post was last modified: 18-03-2023, 11:47 AM by David Stepney.)
The body of the sender is Mazak. I had the same problem with mine. I put some freeing oil into the bottom of the body, sprayed some liberally on .the outside by the pivot, and left it overnight. The following day, I very gently moved the arm back and to a little at a time until it would move it’s complete travel and then continued to move it to and fro until it was completely free. I then washed it out with electrical cleaner to get rid of the crud. Apart from a more recent float problem, it has been fine (or as near to fine as a 90 year old piece of electro-mechanical equipment can be) ever since. Be gentle though, as the internals are a bit delicate and replacements are somewhat problematical to find.