Modern design, well-equipped new cabin
The modern design of the Generation 6 crawler tractors, with downward-angled body panel edges and panoramic windows including the door area, provides the driver with a good all-round view of the surrounding terrain and the machine’s working attachments. The exhaust system is entirely concealed by the A-post, so that the driver’s view over the engine hood is unobstructed. Such good visibility makes operation of the machine more efficient and enhances safety during day-to-day work.
The PR 736’s cabin is a completely new development. The driver can move the ergonomically shaped travel controls to the most convenient position. An integral contact switch in the comfortable seat identifies the driver’s presence automatically, without a safety lever having to be operated. The desired travel speed can be freely preselected with no gear shifts needed, and memorised if necessary for direct selection when needed.
The touch-controlled system display for Liebherr earthmoving machines is featured on the PR 736. The touch screen is the interface for a new control architecture of modular construction and capable of almost unlimited extension. Additional options can be incorporated, for instance reversing cameras, or functions designed for extra convenience such as control of the air conditioning, and can then be shown on the display. As before, Liebherr crawler tractors can be equipped optionally with alternative operator interfaces, with an inching brake pedal or different control levers.
Modern lighting, for example high-performance LEDs, illuminates the work area effectively, even in unfavourable conditions. The modular lighting concept is integrated into the PR 736’s redesigned bodywork and can be chosen specifically to suit the tasks the machine is intended to perform.
Easy maintenance, low operating costs
Centrally located maintenance points, access flaps and engine compartment doors that open to a wide angle, a tilting cab as standard equipment and, as an option, a radiator that can be swung out for cleaning are all features that speed up and simplify servicing work on the PR 736.
The PR 736 has exceptionally long change intervals for operating fluids. Depending on the nature of the work, and provided that regular quality checks are performed, the hydraulic fluid change interval can be as long as 8,000 hours of operation.
Also of completely new design: the track assemblies for Generation 6 crawler tractors. The drive sprockets are of larger diameter, with more teeth in mesh, so that the operating life of both track and sprocket are extended. If working with abrasive media, track assemblies with rotary bushings are available as an option. In addition to 100 % exchangeability, they prolong the replacement intervals distinctly on this type of work.
The standard Liebherr fleet management system LiDAT provides an accurate, efficient overview of essential servicing work, warning messages, the machine’s position and actual consumption data and filling levels. Depending on the agreement with the customer, the data are updated several times a day and can be called up whenever needed by means of a web browser. An automatic alarm function can also be selected, for instance if a machine leaves a predetermined zone or if a critical operating situation arises.
