Drawbar pull capability

[Atypical_decorum]

Has anyone hooked up a pull gauge to their drawbar to find out the actual pull?


A TBN owned pull scale sent out to trusted people and tested in a standardized way would make a pretty neat spreadsheet on here for future generations.

 

[Hay Dude]

Has anyone hooked up a pull gauge to their drawbar to find out the actual pull?


A TBN owned pull scale sent out to trusted people and tested in a standardized way would make a pretty neat spreadsheet on here for future generations.

IMO, probably the most important measure of power.

 

[jeff9366]

The Nebraska Tractor Tests have drawbar pull information for some heavier tractors.

Nebraska Tractor Test Laboratory | Nebraska

tractortestlab.unl.edu

Messicks has proprietary data for some compact tractors.

https://www.youtube.com/results?search_query=messicks+kubota+pull+tests

 

[Hay Dude]

I always compare drawbar power when making tractor buying decisions.

 

[CliffordK]

tractordata.com lists the drawbar pull on some of the older tractors, especially crawlers.

Sometimes rated in HP.

TractorData.com Cletrac AG tractor information

www.tractordata.com

 

[bcp]

Has anyone hooked up a pull gauge to their drawbar to find out the actual pull?


A TBN owned pull scale sent out to trusted people and tested in a standardized way would make a pretty neat spreadsheet on here for future generations.

Hard to standardize the dirt in different places. But if the same model tractor was tested in many places and soil types, that would be really good information.

Bruce

 

[Hay Dude]

Farm tractors, too. Here’s my Magnum.

Another good measure of power is in the “tests” section of Tractor Data is “Max Pull”.

 

[WinterDeere]

$141k... puts some of our whining about pickup truck pricing in perspective!

 

[Atypical_decorum]

Hard to standardize the dirt in different places. But if the same model tractor was tested in many places and soil types, that would be really good information.

Bruce

Agreed to both points. A description of dirt could accompany each measurement.

 

[repete]

What is it you are looking to pull?

Pulling a plow at 1 mph is different than wanting to pull the same plow at 10 mph.

 

[Atypical_decorum]

What is it you are looking to pull?

Pulling a plow at 1 mph is different than wanting to pull the same plow at 10 mph.

It'd be pulls in each gear of your tractor.

 

[oldnslo]

To many variables for this to be real accurate if used by random people under random conditions. Would be interesting to see the various results though.

Some of the variables are:
Type of Tires: turf, R4, R1
tread left on tires
Bar or lug angle 23, 30, 45 degree etc.
tractor weight,
type of soil,

 

[Hay Dude]

$141k... puts some of our whining about pickup truck pricing in perspective!

That was 20 years ago.
They’re $350K-$400K now.
I paid $40k for mine, well used, which is dirt cheap. It was 22 years old. Still makes 250PTO HP.
Magnums are stupid powerful & heavy.

Buy weight just as much as you buy HP/TQ.

 

[WinterDeere]

Pulling a plow at 1 mph is different than wanting to pull the same plow at 10 mph.

I'd assume that's why they're giving the data in horsepower, rather than pounds force.

 

[Atypical_decorum]

To many variables for this to be real accurate if used by random people under random conditions. Would be interesting to see the various results though.

Some of the variables are:
Type of Tires: turf, R4, R1
tread left on tires
Bar or lug angle 23, 30, 45 degree etc.
tractor weight,
type of soil,

Yes. That's true. And kinda the point. If you have 10 readings of an L6060, someone looking at an L6060 can say that's close to my setup, I'll get about that much pull given X conditions.

Eventually, there will be enough readings where a good picture of the tractor and various setups will emerge.

 

[jeff9366]

To many variables for this to be real accurate if used by random people under random conditions. Would be interesting to see the various results though.

Some of the variables are:
Type of Tires: turf, R4, R1
tread left on tires
Bar or lug angle 23, 30, 45 degree etc.
tractor weight,
type of soil,

How recently the gauge was calibrated against a known standard.

 

[WinterDeere]

Most of the variables thrown out are traction-limiting factors. But drawbar pull in horsepower could be taken in a higher gear, where traction is not the limiting factor. Again, I suspect this is why it's given in horsepower, rather than pounds force.

 

[Atypical_decorum]

How recently the gauge was calibrated against a known standard.

Dude. This isn't for weighing diamonds or medicine. A 25k pull gauge that is accurate to about 50-100lbs won't run out of spec so fast as to invalidate results. Even if there were drift that caused the scale to have +/- 100lbs, it wouldn't make much difference in a 5k lb pull for this purpose.

 

[Atypical_decorum]

Most of the variables thrown out are traction-limiting factors. But drawbar pull in horsepower could be taken in a higher gear, where traction is not the limiting factor. Again, I suspect this is why it's given in horsepower, rather than pounds force.

That's true. Tie to a big tree and pull in a gear available in most tractors like 4H

 

[Hay Dude]

I would think the Nebraska tractor tests are all done on the same grounds?