Posted by Leroy on June 20, 2016 at 06:46:58 from (69.88.202.229):
In Reply to: swinging drawbar posted by wally b on June 19, 2016 at 20:38:55:
Goes back to the drag type implements and being able to turn at the corners and the earlier tractors did not even have brakes let alone turning brakes. And the farther back of the axle center the harder to turn under a load and if you look most had the drawbar quite a ways back of the axle, a few had hitch direct against the differential housing like the orignal Fordson of 1918. And they would still with the disk that stayed in rhe ground all the time wanted to slide the fromt end sideways and outfit keep going straight. The swinging drawbar took care of that. The Farmal F20 did not have a swinging drawbar so they made it to automatically apply a brake on side you were trying to turn to so it would make the turn without sliding front wheels sideways. About the first wheel carried equipment was the grain drill and that did not put the load on to make problems turning but if left in swing position if eithe wheel would hit a clod it would whip it to that side and you could not get a straight and in place planted strip. Same aplies to wheel carried disks with the wip around and most are raised to make turns so no reason to let swing and wip around but if left in ground you would let it swing to make that turn and hope it did not wip around too bad the rest of the time.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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