[AT] more HP guaranteed!/now front end on the ground.

charlie hill charliehill at embarqmail.com
Thu Mar 16 10:42:48 PDT 2017


Here you go, for anyone who feels like working through the math.
http://www.agmachinery.okstate.edu/tractors/TractionTractorPerformance.pdf

-----Original Message----- 
From: Stephen Offiler
Sent: Thursday, March 16, 2017 1:10 PM
To: Antique tractor email discussion group
Subject: Re: [AT] more HP guaranteed!/now front end on the ground.

Talking about slip... rang a bell.  Ah-ha, Nebraska tractor tests.  They
include % slip in the drawbar test.  Without actually checking, my memory
agrees with Charlie's stated 10-15% range.

SO


On Thu, Mar 16, 2017 at 12:52 PM, charlie hill <charliehill at embarqmail.com>
wrote:

> Just my opinion but I think sometimes when your front end is coming up
> while
> pulling a load it is from not allowing enough wheel slip.  I read an
> article
> in
> Progressive Farmer many many years ago about proper wheel slip for maximum
> efficiency.  If I remember right it was somewhere in the neighborhood of 
> 10
> to 15%.
> Air pressure is the key and it varies by soil type.  I just don't remember
> exactly what the specifics are.
>
> Charlie
>
> -----Original Message-----
> From: John Hall
> Sent: Tuesday, March 14, 2017 8:11 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] more HP guaranteed!/now front end on the ground.
>
> To be honest, I have no idea. Come to think of it I had one of the rears
> repaired last year (new tube and patch the rim around valve stem), and I
> don't remember if I checked to see if both sides are equal. Wouldn't
> hurt to check. I'm down right now until I get the new radiator
> installed. I will say we don't really let the sidewalls bulge out much
> when pulling heavy loads.
>
> John
>
> On 3/14/2017 12:02 PM, charlie hill wrote:
> > John,  how much air pressure do you run in the rear tires?
> >
> >
> > Charlie
> >
> > -----Original Message-----
> > From: John Hall
> > Sent: Friday, March 10, 2017 4:19 PM
> > To: Antique tractor email discussion group
> > Subject: Re: [AT] more HP guaranteed!
> >
> > Thinking it might give the 4020 more pep than a turbocharger. Course I
> > can't keep the front end on the ground as it is pulling the chisel plow.
> > Gonna need more front end weights I guess.
> >
> > John
> >
> >
> > _______________________________________________
> > AT mailing list
> > http://www.antique-tractor.com/mailman/listinfo/at
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
>
_______________________________________________
AT mailing list
http://www.antique-tractor.com/mailman/listinfo/at 




More information about the AT mailing list