Liebher bulldozer: technical specifications

The German company for the production of bulldozers "Liebher" is one of the world leaders in the corresponding segment. In addition, the company is known for the production of earthmoving and construction equipment. In the market, cars from this brand occupy up to 45 percent. This is due to the reliability and quality indicators of the units, because the designers are constantly introducing the latest technology using modern materials. Consider modifications and features of construction vehicles from this brand.

Advantages

The Liebherd bulldozer, regardless of the series, has several advantages over its competitors. These include:

1. The presence of a hydrostatic drive, contributing to the required power indicators, taking into account the enormous dimensions of the equipment. At the same time, it becomes possible to move smoothly without jerking.
2. The movement of the machine is controlled by means of a universal joystick. This makes it possible for operators to work without serious training.
3. The control system is clearly balanced in terms of aggregation between traction and speed, which protects the motor from overload.
4. Hydrostatic drive significantly reduces repair costs, simplifies production, which reduces the cost of equipment.

The market has a huge number of not only new, but also used Liebherd bulldozers. The only negative is the fact that in Russia there are no official representative offices of the company, which makes it difficult to purchase a machine and spare parts for it.

general description

The cars in question are equipped as standard: the power unit is in front, and the driver's cab is in the back. The hydrostatic dual-circuit drive makes it possible to control the position and speed separately on each wheel. Such a design allows you to move and make turns smoothly, which cannot be guaranteed with a conventional mechanical transmission.

The Liebherd bulldozer is controlled with the help of a single lever, which is responsible for movement, turns and braking. This ensures reduced operator workload, allowing you to fully focus on the workflow. All versions of the equipment of this brand use different versions of the Litronik system (Litronik), which is responsible for controlling all components of the machine, the optimal distribution between speed indicators and traction.

Equipment

On all Liebherd bulldozers, the technical characteristics of which are given below, proprietary motors are installed. They are equipped with four or six cylinders, have two typical sizes of the piston assembly. This approach makes it possible to unify the details of the power unit, which facilitates the search for spare parts and engine maintenance.

The undercarriage system of the equipment in question is equipped with an oval track circuit with rear drive shafts and a front track drive. Cab maintenance is simplified by tipping hydraulic jacks for easy access to the drive. Such a design facilitates the production itself, which positively affects the total cost of the product. The tracks are equipped with oil-filled fingers, guaranteeing regular lubrication for the entire period of operation.

Modifications

In the domestic market, these machines are available for sale only from unofficial leaders or in used condition. The lineup includes several modifications that differ in the Litronic control system. Each series is represented by models denoted by the letters XL, LGP, L. Between them, they differ in the running gear, dumps that determine the purpose of the unit and the ability to work on a particular type of soil.

Destination

Due to the possibility of operating various types of attachments, the tractor in question is capable of performing a huge range of tasks in the industrial and construction industries. Rotary, universal, planning dumps make it possible to carry out work on the arrangement of roads, embankments and bridges. Branded motors guarantee a high power indicator and a long working resource.

Technical characteristics of the Liebher 764 and 756 bulldozer

The following are the main parameters of the 764 series:

• weight - 44.2-55.7 tons;
• power indicator - 310 kW;
• ultimate traction force - 600 kN;
• dump volume - 13.6-17 cubic meters;
• lifting / deepening of the blade - 1.2 / 0.52 m.

The characteristics of the 756 model are also relevant for the 754 series. The second version is slightly simpler, more difficult to manage and not so comfortable to operate. The numbers are below:

• weight - 30.5-40.8 tons;
• the dimensions of the blade - 4.2x1.65 / 4.32x1.65 / 5.03x1.3 m;
• volume of the working body - 8.9-11.7 cubic meters;
• motor power - 250 kW;
• maximum traction force - 495 kN;
• lifting / deepening of the blade - 1.14 / 0.52 m.

Parameters of the Liebher 776 and 746 bulldozer

Modification 776 is characterized by increased power and optimal conditions for the operator to work, has the following characteristics:

• mass - 71.8-73.18 t;
• dump capacity - 18.5-22.0 cubic meters;
• power indicator - 565 kW;
• lifting / deepening of the blade - 0.5-1.1 m;
• working speed - 10.5 km / h.

Parameters of the 746 model (it does not have very large power, but it "gives odds" to competitors in terms of maneuverability and movement over unstable soil types):

• weight - 28.3-30.8 tons;
• overall dimensions of the blade - 3.7x1.5 / 3.9x1.45 / 4.5x1.35 m;
• motor power - 150 kW;
• the capacity of the working body is 6.0-7.2 cubic meters;
• ultimate traction force - 274 kN;
• lifting / deepening of the blade - 1.2 / 0.54 m.

Versions 736 and 734

These modifications have approximately the same characteristics. The 736th variation features an improved electronic unit, an original design and a cabin with increased safety. There are two control joysticks and a monitor that allows you to track the actions of the equipment. The table shows the parameters of these machines, for comparison with the performance of the popular model of the Liebher 764 bulldozer.

Characteristics of models 724 and 754

Parameters of 754 Series Machine:

• working weight - 34.9-42.4 t;
• power - 250 kW;
• dump capacity - 4.9-11.7 cubic meters;
• speed - 11 km / h.

The Liebher 724 bulldozer has no less qualitative parameters, like its predecessors, has the following characteristics:

• working weight - 1.9-2.0 tons;
• blade dimensions - 3.2 / 1.2 m in length and height;
• dump capacity - 3.1-4.2 m;
• maximum thrust - 227 kN;
• engine power indicators - 118 kW;
• deepening / lifting of the working part - 0.52 / 1.1 m.

To conclude the review

Liebherd bulldozers are not so easy to find on the domestic market, but quite real. Some modifications are released in limited quantities, while the quality of all units is at the highest level. This is due to the fact that the equipment is focused on professional construction, where accuracy and literacy in the performance of tasks are important. Thanks to proprietary engines and the possibility of using a variety of attachments, the machines in question are capable of performing a wide range of work.