John Deere forward speed calibration

[Northdowns Martin]

Is it possible to re-calibrate the forward speed on our JD6534 tractor? Reason I ask is it had different size wheels and tyres fitted when we purchased it second hand. It makes field sizes smaller than other tractor which alerted us to something not quite right. The GPS speed and drill speed indicate that tractor is displaying 1km/h slower.

 

[Timbo]

Is it possible to re-calibrate the forward speed on our JD6534 tractor? Reason I ask is it had different size wheels and tyres fitted when we purchased it second hand. It makes field sizes smaller than other tractor which alerted us to something not quite right. The GPS speed and drill speed indicate that tractor is displaying 1km/h slower.

Yes but itll need the service advisor

 

[tullah]

just drive a hundred yards and time it.

 

[Tractortech]

Now Then..
It should be possible to alter the wheel size in the Command Center. It may be at 'Technician' level and you'll need the chart from the Tech manual. I'll have a look next time I have the ol' S/A cranked up..

 

[Northdowns Martin]

just drive a hundred yards and time it.

This will give me an answer but not the cure

 

[KB6930]

Just make the implements a bit wider to compensate ? If you've already got 2 sources telling you a size do you really need a 3rd ?

 

[Northdowns Martin]

Just make the implements a bit wider to compensate ? If you've already got 2 sources telling you a size do you really need a 3rd ?

Technology is only precise if the input figures are accurate, without that why use it. I can fudge the figures for drill but it has a land wheel for speed, however the fert spreader needs a forward speed taken from the tractor. Precision is what I’m after.

 

[KB6930]

Technology is only precise if the input figures are accurate, without that why use it. I can fudge the figures for drill but it has a land wheel for speed, however the fert spreader needs a forward speed taken from the tractor. Precision is what I’m after.

Take a speed off the GPS then it'll be more accurate than the gearbox speed or a radar