[AT] Plowing

[Gene Dotson]

    What Dennis is referring to with the Farmall has nothing to do with snap 
coupler, fast hitch or any other type of tractor lift. What he referred to 
was a clevis bolted or pinned to the drawbar to pull a pull type plow, that 
could be a hydraulic lift or a mechanical lift. Only connection to the 
tractor was a "L" shaped bar that set down in the clevis.  A spring put 
pressure on the mechanism so that when a sudden or hard pull would overcome 
the spring pressure and allow the plow to disconnect from the tractor and 
prevent any serious damage to the plow or tractor.. John Deere system has a 
hitch bar that curved around under the hitch tongue  and through a captive 
channel with a spring to hold it engaged until a sudden pull allowed it to 
move far enough forward  to disengage the channel and disconnect the plow. 
Hydraulic lift plows had to have the quick disconnect hydraulic connectors 
to disconnect when the plow disengaged. Rope trip plows had to have a method 
to allow the rope to disconnect from the seat or fender it was hooked to. 
Rope tied to the seat can give quite a jolt to the operator.

                        Gene