WM sharpener magnet reader issue

[Jim_Rogers]

My magnet reader was not reading the magnets put on the blade to shut it off.

I attempted to move it forward closer to the blade to get it to "feel" the magnet as it was on the blade. And broke the bracket holding it to the sharpener.
I had tested the magnet reader and it is working just not in the right position.

I had to mickey mouse a temporary bracket to hold the reader to the top edge of the water pan. And I got it in a position where it can now "feel" the magnet and it will now shut the pusher down correctly.
Now instead of being 6 teeth away from the start point, the magnet now needs to be 12 teeth away. But it works.

Just something else to fix on a rainy day to be able to sharpen some blades.

Jim Rogers

[Percy]

Had the exact same issue on my recently sold wm sharpener. Mine was very finicky as well. Took forever to adjust it.  Once I got it right, it was good but finding that sweet spot was a task.

[terrifictimbersllc]

That sensor is a metal detector. The magnet is so it sticks to the blade. The blade can stop the sharpener if it gets too close to the sensor, as happens sometimes if there is a kink or something else moving the blade too close.

[Darrel]

Good info Black Cat, mine has never worked right. This gives me hope.

[LeeB]

Make sure the paint isn't worn off the back of the magnet. I thought the magnet stopped the motor and when I lost mine I tried a regular magnet. Didn't work for crap. Thought the sensor was bad. Bought a new magnet from WM and it worked again. Don't know if I have any magnets for it now or not. I don't use it any more. Took one of the motors of and used it on my mill for the movable guide arm to replace the original. Same motor.

[gmmills]

    I think there is some clarification needed on this subject. The old drag style WM LTAGA sharpener and also the Shop Series CBN sharpener have a polarity sensitive shut off sensor. That is the reason that on side of the magnet is painted. The unpainted side is applied to the blade, painted side out. If the magnet is put on in reverse the sensor will not trip.

   From reading terrictimbersllc's sig line he has a BMS250 sharpener. It is basically what he stated, a metal detector.  A proximity sensor that is not polarity sensitive. The magnet can be installed in any direction and still activate the sensor. Anything metallic will trip it.       
   
     Just keep in mind that WM has used two different shut off sensors over the years. Hope this helps members in the future. 

[Kbeitz]

Must be a reed switch...