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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Seat Sensor
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<blockquote data-quote="bobbie-g" data-source="post: 5307" data-attributes="member: 26"><p>Brian, I had a similar problem a couple of years ago. Happened when I had the Bobcat on a trailer and tried to drive it off. The "parking brake" would not disengage, and the seat light on the BICS would not illuminate. I checked my notes, and to my chagrin I did not note how I fixed it. I do remember encountering three wires to the seat sensor ( I, too, was going to just short them together). I believe the three wires are common, excitation, and signal back to the BICS, but that's just my guess. I think what happens is a magnet interacts with a coil of wire and somehow that generates a signal that says the "switch" is closed. Clever, because there is only the magnet that slides inside a sealed coil. Nothing to wear out or be exposed to the elements. In my case, accumulated gunk under the seat prevented the seat from traveling downward far enuf to activate the switch. As I recall, we had to pop the ROPS cage open to access the seat bolts from the bottom of the mounting for some reason. Maybe we had to remove the seat to get to the switch. And I do recall something clever about not being able to remove the switch as simply as it seemed. Anyhow, it took about an hour to shim the switch down (or up?) with a washer so we would get a reliable seat light on the BICS. Or maybe we shimmed the seat instead. Sorry I can't remember better how we solved that one. But the solution involved making the sliding plunger get to the right place inside the housing, not simply shorting a wire. ---Bob</p></blockquote><p></p>
[QUOTE="bobbie-g, post: 5307, member: 26"] Brian, I had a similar problem a couple of years ago. Happened when I had the Bobcat on a trailer and tried to drive it off. The "parking brake" would not disengage, and the seat light on the BICS would not illuminate. I checked my notes, and to my chagrin I did not note how I fixed it. I do remember encountering three wires to the seat sensor ( I, too, was going to just short them together). I believe the three wires are common, excitation, and signal back to the BICS, but that's just my guess. I think what happens is a magnet interacts with a coil of wire and somehow that generates a signal that says the "switch" is closed. Clever, because there is only the magnet that slides inside a sealed coil. Nothing to wear out or be exposed to the elements. In my case, accumulated gunk under the seat prevented the seat from traveling downward far enuf to activate the switch. As I recall, we had to pop the ROPS cage open to access the seat bolts from the bottom of the mounting for some reason. Maybe we had to remove the seat to get to the switch. And I do recall something clever about not being able to remove the switch as simply as it seemed. Anyhow, it took about an hour to shim the switch down (or up?) with a washer so we would get a reliable seat light on the BICS. Or maybe we shimmed the seat instead. Sorry I can't remember better how we solved that one. But the solution involved making the sliding plunger get to the right place inside the housing, not simply shorting a wire. ---Bob [/QUOTE]
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Seat Sensor
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