Farmergeist said: As a former engineering student, I must say that this pitman arm clamp is one of the dumbest devices I have ever encountered. Even the Egyptians of ancient times could build something better than this.
John Deer should be ashamed of itself.
Before you get too hard on the designers, I suggest you try an exercise:
Come up with your own sickle drive mechanism. Stay within these constraints:
1) Each end of the cutter bar must float independently while operating.
2) Bar can be raised to transport position.
3) Drive mechanism allows some front to rear movement of the cutter bar.
4) Normal maintnance and repair can be done with simple hand tools.
5) Limit the design to technology (metals and machine tools) that was available 100 years ago.
6) Machine still works when 50 or 60 years old.
7) Keep the cost down so a 1930's farmer could afford to buy one.
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