Abstract: A compact tracked vehicle (1) for transporting and self-loading material, that can be operated by a standing operator, comprises in combination a body (2) for holding the material; a power shovel (3), located at the front, for body (2) self-loading; a platform (4), located at the rear, for supporting the operator; and tracks (5), wound in a loop (6). The loop (6) substantially has a parallelogram configuration around a motor-driven wheel (7) and a plurality of tension rollers (8). The parallelogram is angled in such a way that it has a pair of first vertices (9) raised off the ground and substantially translated forward relative to a pair of second vertices (10) adjacent to the ground. The motor-driven wheel (7) is associated with one of the first vertices (9) raised off the ground.

Abstract: A cooling device for the hydraulic fluid of a site machine hydrostatic drive comprises a pump body and a rotor with vanes, keyed directly on a driving shaft which drives the pump, and driven in rotation in a way designed to send a flow of cooling air onto the pump body.