Liebherr R 946 User Manual

Loading...

Crawler excavator

R 946

 

 

 

 

 

 

 

 

 

 

 

Operating Weight: 38,400 – 41,950 kg

Engine Output:

200 kW / 272 PS

Bucket Capacity:

1.25 – 2.50 m³

R 946

Operating Weight: 38,400 – 41,950 kg

Engine Output:

200 kW / 272 PS

Bucket Capacity:

1.25 – 2.50 m³

2 R 946 Litronic

Performance

Thanks to its innovative Advanced excavator system technology, the R 946 crawler excavator has performance features that are truly unique. Characteristic elements of this system technology include the particularly effective and energy-efficient Positive Control twincircuit hydraulic system, which was specifically designed for machines with a high level of superimposed functions and operational movements. The electronic pump control arrangement sets this technology apart, creating a new standard for performance and quantity control that entirely matches the operator’s needs.

Reliability

Liebherr provides customers with solutions that lead the way for the future, solutions for maximum equipment reliability and availability, solutions which satisfy the most extreme demands for performance and quality. With more than 50 years experience in the construction of hydraulic excavators, we have an advantage in design and consultation that clearly sets us apart.

Comfort

In the cab the driver can look forward to a workplace designed in accordance with the very latest findings in ergonomic science, with emphasis on comfort and ease of operation. The optimised arrangement of the hydraulic hoses means that the driver has en even wider field of vision, and the heating and climate control system fitted as standard means pleasant working conditions inside, whatever the weather. Liebherr crawler excavators are also particularly easy to service – maintenance tasks can be carried out easily and rapidly at readily accessible service points.

Economy

Crawler excavators from Liebherr guarantee maximum productivity. The optimum interplay of hydraulics and electronics means that individual movements and superimposed movements alike can be carried out particularly efficiently. And, perhaps last but by no means least, the perfect harmonisation of all the components means that energy expenditure during operation can be kept to an absolute minimum.

R 946 Litronic 3

Modular quick-change system made by Liebherr

Likufix – connects all hydraulically mounted tools without having to leave the operator’s cab, maximum productivity due to tool change being performed in a matter of seconds

The suitable digging tool for every application. Your machine is a multifunctional tool carrier and will pay for itself very quickly indeed

Mechanic and hydraulic Liebherr quick-change adapter

4 R 946 Litronic

Performances

Thanks to its innovative excavator system technology, the R 946 crawler excavator has performance features that are truly unique. Characteristic elements of this system technology include the particularly effective and energy-efficient Positive Control twin-circuit hydraulic system, which was specifically designed for machines with a high level of superimposed functions and operational movements. The electronic pump control arrangement sets this technology apart, creating a new standard for performance and quantity control that entirely matches the operator’s needs.

Integrated excavator system technology

 

High-tech for high

Among the high-tech equipment on the Advanced

 

performance

version of the R 946 is the newly-developed inte-

 

 

grated excavator system technology. This is based on

 

 

the Positive Control hydraulic system, controlled by

 

 

Liebherr electronics and the system software. The

 

 

sensors located at strategic points on the machine

 

 

form the basis for an intelligent system that allows for

 

 

fast and fluent working.

 

Positive Control

When travelling straight or in a curve, and during

 

twin-circuit hydraulic

levelling work, the two pump circuits of the hydrau-

 

system

lic system are separated or grouped together, as the

 

 

need arises. Separation of the systems means that

 

 

different consuming components can be supplied

 

 

with different load pressures independently, and

 

 

saving energy too. By contrast, grouping the pump

 

 

circuits allows for maximum speeds with individual

 

 

or superimposed movements, and that means opti-

 

 

mum energy utilisation.

 

Power and speed

 

 

Faster work cycles

The R 946 achieves particularly fast work cycles,

 

 

thanks, for example, to the powerful slewing drive of

 

 

the superstructure, the rapid slewing rates, and the

 

 

creation of high slewing torque.

 

Operating

With an operating pressure of 380 bar, the R 946

 

pressure

achieves higher hydraulically limited load capaci-

 

 

ties and higher digging forces, of up to 229 kN,

 

 

and break-out forces of up to 238 kN; perfect for

 

 

more difficult operational situations such as canal

 

 

or pipeline construction.

 

 

 

Wide range of operational

 

Liebherr Diesel Engine

 

possibilities

 

• Specifically designed for construction equipment

• Large number of equipment variants

 

 

• Maximum output at low engine speed

 

 

• Versatile selection of undercarriage

 

• Long life expectancy

variants

 

• LIDEC-Engine Control – Liebherr Diesel Engine Control

 

 

• Broad operational spectrum, from

 

• State-of-the-art technology with common rail injection

earthmoving, to grading work, to

 

system

demolition

 

• Electronically regulation of injection-amount and-timing

 

 

 

 

• Complies with emission standard IIIB/Tier 4i

 

 

 

 

 

 

 

 

 

R 946 Litronic 5

LiDAT data transfer system

Complete fleet management, all from one source

Optimized economical performance of the machine park thanks to detailed view of the distribution of operating states and times

Reports on capacity commitment and the use of the machine park can be called up daily via the Web portal

Precise location of the machine

Regional delimitation and fixed downtimes increase safety and reliability

6 R 946 Litronic

Reliability

Liebherr provides customers with solutions that lead the way for the future, solutions for maximum equipment reliability and availability, solutions which satisfy the most extreme demands for performance and quality. With more than 50 years experience in the construction of hydraulic excavators, we have an advantage in design and consultation that clearly sets us apart.

High stability undercarriage

Better force distribution The undercarriage concept leads to increased performance with improved service life. Thanks to the connection of the middle section being extended as far as the ends of the chassis beams, known as the X-design, the forces are better distributed, which increases the service life of the undercarriage.

Technology with perspective

Quality right down

The at-a-glance layout of the hydraulic, lubrication,

to the last detail

and electricity lines makes for optimum functional

 

reliability and maximum availability of the unit. Best

 

possible corrosion protection is guaranteed thanks

 

to components and modules being finalpainted and

 

surface treated before assembly.

Perfect optimisation

Individual components of the drive train, manufac-

 

tured in-house, such as diesel engine, traction drive,

 

rotary actuators, operating pump and hydraulic

 

cylinder are perfectly optimised with one another.

 

As components of a total system designed for long

 

operational life, they guarantee maximum possible

 

reliability.

Safety of functionality

Safety of functionality

The cab is equipped with an integrated roll-over

ROPS cab structure

protection system (ROPS) in accordance with

 

ISO 12117-2, guaranteeing driver safety in any

 

situation.

Automatic control

The operator can entirely focus on his job, be-

of functionality

cause the integrated on-board electronic continu-

 

ously performs a comparison with pre-determined

 

target data. Eventual deviations from the target

 

parameters are shown on the display.

Key technologies –

 

Spare parts service

 

Made by Liebherr

 

• Any spare parts required are

• Perfect matching of the components

 

 

available within 24 hours – world-

to construction machine operations

 

wide. And that means high opera-

• Engine, hydraulic pumps, transfer

 

tional readiness of the machines,

 

wherever, whenever

gears, travel drives, slewing drives,

 

 

 

slewing rings, and electronic compo-

 

• Over 80,000 spare parts in stock

nents – all from the same source

 

at all times

• Main steel components, such as

 

 

undercarriage, equipment modules,

 

 

and slewing superstructure, all

 

 

designed by Liebherr

 

 

 

 

 

 

 

 

 

 

 

R 946 Litronic 7

Touch-screen display

7-inch touch-screen with colour display

Wide range of adjustment, check, and monitoring possibilities

Tough, reliable design (sealing tightness class IP 65)

Video capacity with high resolution, reproduces the image from the rear area monitor camera in best possible quality

8 R 946 Litronic

+ 16 hidden pages