Thank you for the welcome and for the help. I have climbed all over the tractor looking for a back-up alarm, but I can't seem to find one. If the tractor has a back-up alarm, where should I find it?
Well, if it is a back up alarm it could be just about anywhere and look like anything. I would think that most people would place a sitch to trigger such an alarm amongst the directionl control linkage. Did you look below the bedals under the tractor with in the directional control leankage for a switch that just doesn't look right?
Do you have a way of contacting previous owners and asking about the noise or horn insatll?
Other options could be to have somebody walk along while you are backing up to help locate the area of origin - or - place it on jacks
BEING VERY CAREFUL to try and locate the noise.
Just wondering and I know you have an HST but have you by chance done any of this:
1) Does the sound ONLY happen when the tractor is actually moving backward? For instance, engine running, push in the clutch and press the reverse pedal. Does it make the sound?
2) With the tractor moving in reverse and you hear the sound, try pushing in the clutch and NO directional pedal pressed (you are coasting). Do you still hear the noise?
3) Following step 2, with tractor coasting backward and the clutch pressed in and holding. Press the revesre directional pedal in. Do you hear the noise?
Hope some of this helps,
Scott