Specifications :
Engine
Rating per ISO 9249: | 115 kW at 1800 RPM |
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Model: | Liebherr D 934 S |
Type: | 4 cylinder in-line |
Bore/Stroke: | 122/136 mm |
Displacement: | 6,36 l |
Engine operation: |
4-stroke diesel Unit pump system Turbo-charged After-cooled and fuel cooled |
Cooling: | Water-cooled and integrated motor oil cooler |
Air cleaner: | Dry-type air cleaner with pre-cleaner, primary and safety elements |
Refiil Capacities
Fuel tank: | 380 L |
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Hydraulic tank: | 290 L |
Hydraulic system: | max. 500 L |
Electrical System
Voltage: | 24 V |
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Batteries: | 2 x 135 Ah/12 V |
Starter: | 24 V/6,6 kW |
Alternator: | Three phase current 28 V/80 A |
Engine idling: | Sensor-controlled |
Hydraulic System
Hydraulic System: | Positive Control dual circuit hydraulic system for independent and need-based flow control |
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Hydraulic pump: | Liebherr variable displacement pump built in transversal plate style, in parallel arrangement with integrated transfer box |
Max. flow: | 2 x 214 l/min |
Max. pressure: | 350 bar |
Pump regulation: | Electro-hydraulic with electronic engine speed sensing regulation, pressure compensation, flow compensation, automatic oil flow optimizer, swing circuit with priority and torque control. 2 independent circuits with hydraulic pump summation for individual equipment movements |
Hydraulic oil filter: | 1 full flow filter (20 μm) in return line with integrated fine filter area (5 μm) |
Hydraulic oil cooler: | Compact cooler, consisting of a water cooler, sandwiched with hydraulic oil cooler, fuel cooler and after-cooler cores and hydrostatically driven fan |
MODE selection: | Adjustment of engine and hydraulic performance via a mode pre-selector to match application from economical and environmentally friendly operation to maximum digging performance and heavy-duty jobs |
Super-Finish: | Adjustable working speed for precision work |
RPM adjustment: | Stepless adjustment of engine output via RPM at each selected mode |
Liebherr Tool Control: | 10 pre-adjustable pump flows and pressures for add-on tools |
Liebherr Tool Management: |
Automatic tool recognition (unlimited number) and setting of the discharge and pressure; the operating hours of the attachment tool are recorded |
Operators Cab
Cab: | ROPS safety cab structure constructed from deepdrawn components, resiliently-mounted, sound-insulated, tinted windows, front window stores overhead, door with sliding window |
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Operator’s seat: | Shock-absorbing suspension, adjustable to operator’s weight, 4-way adjustable seat with mountable head rest and seat belt |
Control system: | Integrated into the adjustable console panel in the operator’s seat |
Monitoring: | Menu driven digital LCD display. Automatic monitoring, display, warning (acoustical and optical signal) and machine diagnostic data |
Air-conditioning: | Standard air conditioning, combined cooler/heater, additional dust filter in fresh air/recirculated |
Noise emission ISO6396: | Inside cab: 72 dB(A) |
2000/14/EC: | Surround noise: 102 dB(A) |
Swing Drive
Drive by: | Liebherr swash plate motor |
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Transmission: | Liebherr compact planetary reduction gear |
Swing ring: | Liebherr, sealed single race ball bearing swing ring, internal teeth |
Swing speed: | 0 – 11 rpm stepless |
Swing torque: | 71,1 kNm |
Holding brake: | Wet multi-disc (spring applied, pressure released) |
Option: | Pedal controlled positioning swing brake |
Hydraulic Controls
Joystick control, demand regulated by a hydraulic valve block
Power distribution: | Via control valve with integrated safety valves |
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Servo circuit: | |
Attachment and swing: | Proportional via joystick levers |
Travel: |
Proportional via foot pedals or removable hand levers Speed pre-selection |
Additional functions: | Via foot pedals or joystick toggle switch |
Attachment
Type: | Combination of resistant steel plates and forged components |
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Hydraulic Cylinders: | Liebherr cylinders with special seal-system, shock absorbed |
Pivots: | Sealed, low maintenance |
Lubrication: | Easily accessible centralized lubrication points |
Hydraulic Connections: | Pipes and hoses equipped with SAE split flange connections |
Bucket: | Standard-equipped with 12 t safety hook for lifting and Liebherr tooth system |
Undercarriage
LC: | Wide gauge (2380 mm) |
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Drive: | Liebherr swash plate motors with integrated brake valves on both sides |
Transmission: | Liebherr planetary reduction gears |
Travel speed: |
Low range - 3,7 km/h High range - 6,1 km/h |
Net drawbar pull on crawler: | 190 kN |
Track components: | B 60, maintenance-free |
Track rollers/ Carrier rollers: | 8/2 |
Tracks: | Sealed and greased |
Track pads: | Triple-grouser |
Digging locks: | Wet multi-discs (spring applied, pressure released) |
Brake valves: | Integrated into travel motor |
Lashing eyes: | Integrated |
Standard Equipment
Undercarriage: |
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Uppercarriage: |
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Hydraulics: |
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Engine: |
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Operator’s Cab: |
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Attachment: |
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Dimensions/ Line Drawings
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