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

[David Bruce]

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