A 904 C Litronic Liebherr Excavator Specs & Dimensions - (2006 - 2012)

Extensive lifting capacities

Canalization and the lifting of pipes are everyday tasks for rubber-tyre excavators. These requirements are endorsed via an intelligent concept of uppercarriage sectioning together with the positioning of the Liebherr engine, mounted at a transversal angle directly in front of the counterweight. Separate hoist cylinder bearing points at the upper end of the basic boom also increase the lifting capacities considerably.

Low operating costs

Maximum power of the engine is generated even when running at minimum speed. This allows the necessary output without limitation, whereby the torque which is available is ample for the level required, resulting in high productivity with low consumption.

Automatic idle

If no working or travel movements are being performed, the shiftable function reduces the engine speed to idle, which in turn reduces fuel consumption and emission levels.

Uppercarriage features

Refueling pump, electrical Main battery switch for electrical system Engine hood with gas spring Uppercarriage doors, lockable Uppercarriage lock electro-hydraulically activated from the cab Beacon on engine hood Custom paintwork uppercarriage Power socket 12 V, 20 A Central lubricating system, automatic Central lubricating system, semi-automatic

Engine features

Fuel theft protection Fuel preheating Coolant preheating 230 V Liebherr particle filter Fan drive, reversible Air pre-cleaner

Equipment

2-circuit brake system Support individually controllable Tires Mitas EM 22 Wide gauge 2.75 m Travel speed levels (four) Piston rod protection support cylinders Powershift transmission Parking brake, maintenance-free Tire variants, various Pipe fracture safety on support cylinders Custom paintwork undercarriage Speeder Tool box on both sides, lockable Central lubrication undercarriage

Functional safety

Safety-orientated components, fitted as standard, allow high availability. The operator can thus concentrate fully on the task at hand, due to the integrated on-board electronics performing a constant balancing of predefined set data. Filtering of metallic filings by the magnetic rod, fitted in the hydraulic system as standard, increases life-expectancy of the hydraulic components and the oil.

Pleasant surroundings

Reduced engine speed together with elaborate sound insulation, as well as optimised hydraulic components, allow a comfortable noise level both inside and out. The noise level is comparable with that of a diesel car.

Ease of operation

A shut-off valve, fitted to the hydraulic tank as standard, disconnects the system and guarantees ease of maintenance to the hydraulic system.

Liebherr Tool Control

Available as an option, immediately after the changeover of a hydraulic tool, the required pressure and oil flow values can be selected with a push of a button. Up to 10 combinations can be programmed. A tool changeover cannot be simpler and more time saving.

Hydraulics

Stop cock between hydraulic tank and pump(s) Pressure test fittings Accumulator for controlled lowering of the attachment with the engine shut down Hydraulic oil from -20 °C to +40 °C Hydraulic oil filter with integrated microfilter Hydraulic oil pre-heating Liebherr hydraulic oil, biologically degradable Liebherr hydraulic oil, specially for warm and cold regions Mowing bucket and mulcher operation Bypass filter Change-over for controls (hammer/shear operation via pedals or joystick)

Comfort

Largely dimensioned and ergonomically designed, the Liebherr excavator cab features an operator’s seat which can be individually adjusted, as well as clearly arranged control instruments and ideal all-round view. Automatic air-conditioning guarantees an optimum temperature in the Liebherr Feel-Good cab at all times. The excavator operator is provided with an ergonomically-arranged working area within Liebherr hydraulic excavator cabs. All switches and functions are logically laid out, and the operator’s seat, steering column, and consoles can be adjusted individually. Conditioning and concentration can thus be maintained throughout the entire working day, guaranteeing constant, maximum productivity of the operator.

Optimum visibility

A well-thought-out design of the uppercarriage, featuring large glass panels and rounded edges, increases overall visibility and guarantees a safe overview of the entire working area.

Quick working cycles

High swing torque – attained as a result of the Liebherr swing ring featuring internal teeth and swing drive, specially designed to increase the torque.

Operator’s Cab

Hourmeter, readable from the outside Roof window Travel alarm Fire extinguisher Bottle holder FOPS cab protection system Slide-in front window Floor mat removable Display, large, for all indicating, monitoring and warning functions Coat hook Automatic climate control Consoles and seat adjustable separately or in combination Cooler, electrical Steering column adjustable horizontally LIDAT Liebherr proportional controls Automatic engine shut-down (time adjustable) Bullet proof glass (front and top) Radio system Smokers package Rear view camera Back-up alarm Beacon Tainted glass Windshield washer Wiper lower front window Sliding window in the door Sun roller blind Auxiliary heater with timer Immobilizer electronic (key code) Xenon headlights (front resp. rear) Auxiliary headlights (front resp. rear)

Economy

Liebherr offers a wide range of models, guaranteeing optimum suitability for every application. Easy access to components, as well as the proven service offer, allows maintenance tasks to be performed in the shortest of times, thus reducing operating costs considerably.