A hydrostatic power train includes a hydraulic pump, which is connected,
via a first main pipe and a second main pipe, to a first hydromotor unit
driving a front axle and to a second hydromotor unit driving a rear axle.
The first and second hydromotor units can be adjusted in terms of their
displacement via a first and second variation device. A direction of
travel is defined as forward movement (F) or reverse movement (R) by a
position of an operating lever. The first and the second variation
devices are controlled by a control valve which takes up a first control
position upon a forward movement (F) determined by the position of the
operating ever and which takes up a second control position upon reverse
movement (R) determined by the position of the operating lever and which
takes up a second control position upon reverse movement (R) determined
by the operating lever. In the first control position, the first
variation device is controlled such that the first motor unit is adjusted
for a smaller displacement and, in the second control position; the
second variation device is controlled such that the second motor unit is
adjusted for a smaller displacement.