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

[charlie hill]

Herb on your D-14, the rear hydraulic lever, the one with the notches,
is used to set the sensitivity of the system. (you probably know that.
I'm just repeating it for whom ever might be reading) If the traction
booster is reacting too fast or too much  OR to slow or too little moving 
that
lever either up or down ( I can't remember which way for which without 
looking at it. it's kind of
like trying to remember where a key is on your computer key board while you 
are driving
your car.)

I know that all the colors have their own draft control and that all of them 
work.  I just particularly
like the traction booster set up. But then I bleed orange.

Charlie

-----Original Message----- 
From: Herb Metz
Sent: Sunday, March 19, 2017 3:28 PM
To: Antique tractor email discussion group
Subject: Re: [AT] more HP guaranteed!/now front end on the ground.

Our 1958 D-14 traction booster will make that brief hydraulic pump operating
sound, and then the tractor will start recovering from it's previously
overloaded condition and I will I hit the hydraulics to add part of the load
reduction back onto the tractor; pretty neat. Herb(GA)


-----Original Message----- 
From: David Bruce
Sent: Sunday, March 19, 2017 2:08 PM
To: Antique tractor email discussion group
Subject: Re: [AT] more HP guaranteed!/now front end on the ground.
I don't recall that back and forth but then I was plowing red clay. I do
remember if there was enough spinning the tractor booster would raise
the plow nearly out of the ground.
David
NW NC


On 3/18/2017 6:22 PM, charlie hill wrote:
> I used to stare at the "traction booster" gauge in mild amazement
> as I plowed.  It was constantly jumping as the pressure changed in the
> system and the hydraulics had a peculiar yenk, yenk, yenk sound.  Folks
> now who buy old Allis tractors often fuss about the traction booster but
> if they ever had the pleasure of running one that was right, set up by the
> factory or a good dealer, they would change their tune.
>
> Another thing I found strange about the Allis tractors or at least ours
> was
> something that happened if the tractor started to spin while pulling a
> plow
> or disc in sandy or loose soil.  It would spin one wheel and then stop
> that
> wheel
> and spin the opposite side wheel back and forth by it's self as if you
> were
> alternately
> stomping on the left and right brake pedals.  David or others who ran
> A-C's
> did you ever
> experience that or was it just something peculiar about the rear end set
> up
> on ours?
> Anyway, it would walk it’s self out of a bad spot doing that.
>
> Charlie
>
> -----Original Message-----
> From: David Bruce
> Sent: Friday, March 17, 2017 1:23 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] more HP guaranteed!/now front end on the ground.
>
> I learned to drive a tractor using an Allis D-14. When I switched to a
> Ferguson type draft control system I had to learn a lot of different
> things.
>
> A story on the D-14. The first tractor I ever drove was an Allis B
> pulling a sled in the tobacco field. I was about 6 or 7 at the time. I
> could not get a handle on the B's clutch so it was switched to be the
> "to the barn" tractor while I drove the D-14 in the field. I could not
> reach both the clutch and brakes at the same time so I had to depress
> the clutch, shift to neutral and then hit the brake pedals.  That was a
> bit of a problem as the tobacco field had rows running up and down a
> significant hill. Later I would plow with the D-14 after school and into
> the night in late winter and early spring. There I learned the
> advantages of the traction booster system.
>
> David
>
> NW NC
>
>
> On 3/17/2017 12:41 PM, charlie hill wrote:
>> John, that was the beauty of the old Allis Chalmers "Traction Booster"
>> system.  On the Snap Coupler tractors it worked from spring tension on
>> the drawbar and on the 3pt hitch tractors it used a rock shaft that
>> connected
>> the front of the 3pt lift arms.  The system kept the lift system always
>> tight against
>> the load and immediately reacted to load changes.  When the pressure went
>> up
>> in
>> the system from load tension the lift would quickly raise the implement
>> until the load
>> decreased.  It was essentially a "draft system" but it worked by load not
>> depth.  When they
>> were right they were wonderful.
>>
>> Charlie
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