How does the seat sensor work?

[Skidude108]

The seat sensor in my L3240 has recently started acting up, and I'm not sure where to start looking for the issue. I don't see anything super obvious on the under side of the seat. The one switch I can see just detects when the seat is flipped forward for PTO operation without an operator.
When I am moving, the tractor sometimes just cuts power for a second like I've stood up off the seat, even though I am still sitting. If I adjust my butt it comes right back.
Is the sensor buried in the seat, or is it something I can troubleshoot? Is it a simple contact sensor, or is there more to it?

 

[GreensvilleJay]

curious, so I looked ....
In the seat ,you can see a 'disk'..that's the seat sensor.....with wires leading out front, then to right side.
when a weight presses down on it, switch works....

 

[Skidude108]

curious, so I looked ....
In the seat ,you can see a 'disk'..that's the seat sensor.....with wires leading out front, then to right side.
when a weight presses down on it, switch works....

That's a handy diagram, is there a service manual or something available I can download?

 

[hagrid]

curious, so I looked ....
In the seat ,you can see a 'disk'..that's the seat sensor.....with wires leading out front, then to right side.
when a weight presses down on it, switch works....

Based upon the diagram I calculate that the disk senses flatulence.

I recommend that OP consumes a bowl of chili and tries the tractor again after a 3 hour latency period.

 

[RCW]

That's a handy diagram, is there a service manual or something available I can download?

Looks like a parts diagram - - https://apps.kubotausa.com/illustrated-parts/

Try here for Operator and/or Workshop Manuals (WSM). Not sure if a WSM would cover all models in the Lxx40 series, or individual models.

Kubota Tractor User Manuals Download | ManualsLib

www.manualslib.com

www.kubotabooks.com

Over 600 free Kubota manuals. A library of free manuals and parts diagrams compiled by Kubota tractor owners. All free to download instantly. No tricks, no subscriptions, no sign ups, no weird apps or software to install.

kubotabooks.com

 

[Russell King]

See this thread for information on similar problems

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