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Economy, Low fuel consumption, Low maintenance costs – Liebherr PR 754 Litronic User Manual

Page 7: Long-life tracks

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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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