Liebherr PR 744 Litronic - Manual (Page 5)

5 PR 734 Litronic PR 744 Litronic
Performance
Liebherr has over 30 years of experience in the manufacture of hydrostatically
driven tractors. The high-performance generation 4 crawler tractors are the per-
fect machines for a wide variety of applications.
High productivity
High drawbar pull The powerful Liebherr diesel engine in combination
with the innovative Liebherr travel drive guarantees
ample power in all situations. The drive system
does not require any gearshifting, which means that
engine power is transferred to the tracks without
interruption – even when cornering.
High dozing and
ripping power
The hydrostatic travel drive enables the operator
to define the optimal travel speed and drawbar pull
with ease - preventing the tracks from slipping and
ensuring that maximum power is transmitted to the
ground at all times.
Optimized blade design
for improved rolling of
the material
The blade contours of the PR 734 and PR 744
machines have been further optimized. Improved
rolling of the material enables the machine to achieve
even higher productivity.
Best levelling
characteristics
The entire front-end superstructure of the machine is
torsionally rigid and robust. In conjunction with the
long track frames, this ensures smooth operation of
the blade at all times.
A diversity of applications
Outstanding
maneuverability
The hydrostatic drive has a further advantage when
working in confined spaces. All travel movements
can be performed quickly and without difficulty,
including counter-rotation.
Low machine
center of gravity
The layout of the drive components results in an
extremely low machine center of gravity, which per-
mits safe operation during even the most challeng-
ing applications on slopes and embankments.
Liebherr hydrostatic drive
• Automatic speed and torque adjustment
constantly optimizes the machine’s power
flow in the event of load changes.
• Even at low speeds, for example in demand-
ing ripping operations, the thermal load of
the hydrostatic travel drive remains low.
The high efficiency of the drive remains
almost unchanged.
Optimized blade design
• The blades are defined by uncom-
promising penetration characteris-
tics and outstanding rolling of the
material. The sloping top corners
of the blade allow the operator to
quickly ascertain blade filling.
• Robustly-built using wear-resistant
materials, Liebherr blades excel
under even the most demanding
conditions.