| 摘要 |
<p>The hitch has two plates holes to receive the towing pin. The latter is coupled to the rod of a piston in an hydraulic cylinder. The piston (9) can only by subjected to hydraulic pressure in a direction to oppose the force of a spring (12) which keeps the pin locked, when disconnecting the drawgear. The pin and the rod are both pivoted on a lever (6) and the cylinder is fixed to the rear of the tractor. One of the plates carries a mounting bearing (7) for the lever. A manual grip (13) is fitted either to the rod (8) or lever (6).</p> |
