Liebherr PR 754 Litronic - Manual (Page 7)

7 PR 754 Litronic PR 764 Litronic
Economy
Liebherr crawler tractors are designed with economy in mind, featuring low fuel
consumption, high productivity, extended component life and minimum mainte-
nance costs.
Low fuel consumption
Constant low
engine speeds
The Liebherr diesel engine always operates at a con-
stant speed – in the most economical rpm range –
regardless of the actual travel speed.
A low mean piston speed boosts cylinder filling and leads
to more efficient combustion of the fuel-air mixture.
Efficient driveline Hydrostatic transmission delivers the best possible
level of efficiency over the full speed range. Even
when peak power at low ground speed is required -
e.g. when ripping - the oil temperature remains low.
Load-sensing
implement hydraulics
This system keeps energy consumption down to the
level needed by the hydraulics at any given moment. It
saves fuel when the work tools are not being operated.
Low maintenance costs
Good accessibility All the diesel engine’s servicing points are grouped
together centrally, and can be easily reached. The hy-
draulic tilt cab makes it even easier to reach the various
mechanical assemblies for quick, effective servicing.
Longer maintenance
intervals
Maintenance intervals are optimally matched to the
various components and assemblies. Where parts are
exposed to dirt and dust, for instance on the pushing
frame, maintenance-free bearings are used.
Long-life tracks
Large track
components
High-quality components with ample dimensions pro-
long the operating life of the undercarriage.
Tiltable cab
• For easy, quick access to all drivetrain
and hydraulic components.
Simple maintenance
• All the servicing points are located
centrally and are easy to reach,
minimizing the time spent on daily
inspection work.
Liebherr Litronic control system
• Liebherr’s Litronic control system matches
travel speed ideally to the task at hand.
• Track slip is kept to a minimum in pushing as
well as in ripping applications; this improves
power transmission and prolongs track life.
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