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

[Herb Metz]

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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