PR 714 LGP Liebherr PR 714 LGP Specifications & Technical Data (2007—2014)

Performance

With its excellent performance, the PR 714 proves itself even in difficult terrain and under the harshest working conditions. It’s therefore the ideal machine for a wide range of applications.

Versatility

Crawler tractors of this size frequently operate in tight spaces. Under these conditions, the extraordinary agility of the PR 714 proves yet another strength of the hydrostatic travel drive. The clever arrangement of the drive components allows quick and safe work even on slopes and banks. Thanks to its generous ground clearance, the PR 714 can easily master even the roughest terrain.

Economy

Like all Liebherr crawler tractors, the PR 714 is designed with economy in mind. Low fuel consumption, long-lasting components and time-saving maintenance all decisively contribute to reducing costs.

Low service costs

A wide range of current operating data such as hydraulic pressures and electrical voltages can be easily accessed on a monitor by a service technician. Any abnormal operating values are quickly detected, saving time and money. All service points on the diesel engine can easily be reached from one side. Generous openings also provide direct access to the hydraulic components. Maintenance intervals optimally specified for individual components help minimise recurring service costs.

Deluxe cab

The cab was designed for relaxed, focused work. All controls are clearly laid out within easy reach. The spacious interior allows even tall drivers excellent freedom of movement.

Intelligent solutions for continuous operation

The one-piece PR 714 chassis resists torsional stress, absorbs shock loads and delivers maximum strength. The C-frame is a stable box-type design. Together with the generously sized, tempered ball joint, it ensures precise guidance of the blade. The hydraulic motors of the PR 714 are arranged inside the main frame so that they are effectively protected against external influences and damage. If hydraulic oil temperature or pressure deviates from normal, engine speed and travel speed are automatically limited to prevent potential damage.

High productivity

The Tier III diesel engine provides uncompromising power, allowing the PR 714 to effortlessly move heavy, packed material. This ensures smooth, powerful operation in all situations. The hydrostatic drive requires no gear shifting, which means the engine power is transmitted to the tracks without interruption - even while steering. This enables the driver to maintain optimal travel speed at all times.

Low fuel consumption

The intercooled diesel engine always runs at constant speed in the most economical range - regardless of travel speed. This feature ensures fuel-saving operation. The hydrostatic travel drive maintains high efficiency at all speeds, even when driving slowly and under full load.

Drive train

Liebherr diesel engines have been developed to be long-lasting under the harshest operating conditions. Wet cylinder liners provide uniform engine cooling, and the deep oil sump ensures reliable engine lubrication even on very steep terrain. The tried-and-tested hydrostatic travel drive does not require mechanical components such as torque converter, gear box and differential steering. Standardised hydraulic pumps and motors operate practically without any wear. The large final drives in the Liebherr PR 714 crawler tractor are extremely robust and designed for the heaviest loads.

Simple and precise control

All driving functions can be comfortably and precisely controlled using a single joystick. The standard decelerator pedal can be set to reduce either travel speed only or travel speed plus engine speed.

Infinite speed control

The operator simply selects the desired maximum speed, and the hydrostatic drive automatically regulates ground speed without any gearshifting and thus without interrupting tractive force.

Safety in every situation

The drive train delivers permanent power to both tracks, even when driving on slopes. Simply pulling back the joystick reliably causes the tractor to slow down and stop. The parking brake, which is automatically activated when the machine is in a standstill, provides additional safety.

Best fine grading characteristics

The main frame and push frame are specifically designed to ensure torsional stiffness. The oscillating bar mounted on an elastic bearing effectively absorbs vibrations to allow optimum grading. Blade ratio and centre of gravity are optimised, giving the PR 714 the balance needed for superior grade work. The long undercarriage ensures smooth travel with minimal vibration.

Comfort

The PR 714 provides the driver with a generously sized workspace designed according to the latest ergonomic principles. The spacious cab offers an optimal view of the working area and equipment. Drive characteristics can be optimally adapted to suit the operator’s needs through a wide range of adjustment possibilities. Additionally, the PR 714 operator’s workspace is designed for safety and comfort. Generously sized and ergonomically appointed, the comfort cab offers perfect conditions for working productively and without fatigue.

Excellent all-around visibility

Built-in ROPS/FOPS protection and the large-sized cab windows give the operator an excellent view of both the blade and the rear equipment. Powerful halogen headlights are standard on the Liebherr PR 714.