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Rich, When I first got the one that was my Uncle's I was TOTALLY confused as to how it could possibly work. The supporting tubes were not fixed to the lift arm tubes, they could swing all around relative to one another. I FINALLY realized how it works - AFTER I tried it the first time. How I can explain this so you (and others) can understand - hard with out a picture. Visualize the tubes of the tractor lift as fixed to pivot around a fixed point, resting on the ground. As these lift tubes swung about their pivot point, the end point moves forward toward the pivot point on the ground. Since that point, on the ground, cannot move (or at least SHOULD not - we are disallowing slipping) that means that the end point is getting HORIZONTALLY (i.e. measured along the ground only) closer to the pivot point. So you understand this, think of the lift tube being swung up vertically, then the end and pivot points are at the same place relative to the ground. NOW, since the ends of the lift tubes are fastened to the tractor lift arms, either the tractor lift arms must compress OR they have to PUSH the tractor forward. OOPS!! The tubes that lift the axle have “cups” such that they catch the axle. Since the bottom of the lift tubes CANNOT move, the ground holds them, they have to pivot and “up goes the axle” and the tractor with it. Does that explain the “levitation” process of the tractor lift well enough? Regards,
Larry
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