作者: Robert E. White
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摘要: A tractor includes a motor, transmission, drive shaft and rear differential for driving the axles mounted on main tubular frame of variable configuration. Forwardly extendable telescoping members are actuated by respective rams to selectively increase wheel base between front wheels. The tubes supporting each wheels significantly width tractor; commensurately extendable. toolbar dependingly supported from in cab permits operator view operation attached implements while driving. may include row guide causing move laterally as necessary follow is connected steering mechanism control direction travel tractor. pivotally corresponding provide sufficient clearance permit near 180° pivotal movement. capable pivoting through an angle about establishes appropriate geometric relationship turn any center rotation intersected common axis axle, including either wheel, maintaining intercepting with rotation. Moreover, radius at end minimal can be further reduced temporarily reducing length frame. Various implements, toolbar, readily directly location intermediate axles, necessary.