JD 4310 hydro wont move forward

[rlpete]

I didn't bypass the seat. It seams to work ok as I can hear a loud click noise in engine compartment when on and off the seat.
tractor is 10 years old. Do you know how to check the sensor.
thanks

 

[chickenman]

The flywheel sensors seem to last about 10 years. There are actually 2 of these sensors on the tractor, I replaced 1 but not the other. I still get a code for the 1 old one, but it still works fine. Has your seat sensor been bypassed?

later models did away with the flywheel sensor

 

[chickenman]

I didn't bypass the seat. It seams to work ok as I can hear a loud click noise in engine compartment when on and off the seat.
tractor is 10 years old. Do you know how to check the sensor.
thanks

which sensor, seat or flywheel/transmission?

 

[rlpete]

flywheel

 

[chickenman]

it may not have the flywheel sensor, later models took a frequency signal off the alternator instead