Wheeled Excavator A 924 Heavy Lift litronic` Operating Weight: 26,500 – 28,000 kg Engine: 160 kW / 217 HP Stage IV Bucket Capacity: 0.75 – 1.70 m3 Technical Data Diesel Engine Hydraulic System Rating per ISO 9249 160 kW (217 HP) at 1,700 RPM Hydraulic pump Model Liebherr D934 for attachment 2 Liebherr axial piston variable displacement pumps Type 4 cylinder in-line and travel drive (double construction) Bore / Stroke 122 / 150 mm Max. flow 2 x 231 l/min. Displacement 7.0 l Max. pressure 350 bar, PowerLift 380 bar Engine operation 4-stroke diesel for swing drive reversible axial piston variable displacement pump, Common-Rail closed-loop circuit turbo-charged and after-cooler Max. flow 140 l/min. reduced emissions Max. pressure 420 bar Air cleaner dry-type air cleaner with pre-cleaner, primary and Hydraulic pump Liebherr-Synchron-Comfort-system (LSC) with safety elements regulation and control electronic engine speed sensing regulation, pressure Engine idling sensor controlled and flow compensation, torque controlled swing drive Electrical system priority Voltage 24 V Hydraulic tank 175 l Batteries 2 x 135 Ah / 12 V Hydraulic system max. 430 l Alternator three-phase current 28 V / 140 A Hydraulic oil filter 1 main return filter with integrated partial micro Stage IV filtration (5 µm) Harmful emissions values in accordance with 97/68/EG stage IV MODE selection adjustment of engine and hydraulic performance via Emission control Liebherr-SCR technology a mode pre-selector to match application, e.g. for Fuel tank 330 l especially economical and environmentally friendly Urea tank 46 l operation or for maximum digging performance and heavy-duty jobs S (Sensitive) mode for precision work and lifting through very sensitive movements E (Eco) mode for especially economical and environmentally Cooling System friendly operation Diesel engine water-cooled P (Power) mode for high performance with low fuel consumption compact cooling system consisting cooling unit for P+ (Power-Plus) mode for highest performance and for very heavy duty water, hydraulic oil and charge air with stepless applications, suitable for continuous operation thermostatically controlled fan Engine speed and stepless alignment of engine output and hydraulic performance setting power via engine speed Option Tool Control: ten preadjustable pump flows and pressures for add on tools Hydraulic Controls Power distribution via control valves in single block with integrated safety valves Servo circuit Swing Drive Attachment and swing with hydraulic pilot control and proportional joystick Drive Liebherr axial piston motor in a closed system, levers Liebherr planetary reduction gear Chassis electroproportional via foot pedal Swing ring Liebherr, sealed race ball bearing swing ring, Additional functions via switch or electroproportional foot pedals internal teeth Proportional control proportionally acting transmitters on the joysticks for Swing speed 0 – 9.5 RPM stepless additional hydraulic functions Swing torque 76 kNm Holding brake wet multi-disc (spring applied, pressure released) Option pedal controlled positioning swing brake 2 A 924 Heavy Lift Litronic Operator’s Cab Undercarriage Cab ROPS safety cab structure (roll-over protection system) Drive oversized two speed power shift transmission with with individual windscreens or featuring a slide-in additional creeper speed, Liebherr axial piston motor subpart under the ceiling, work headlights integrated with functional brake valve on both sides in the ceiling, a door with a sliding window (can be Pulling force 135 kN opened on both sides), large stowing and depositing Travel speed 0 – 3.5 km/h stepless (creeper speed off-road) possibilities, shock-absorbing suspension, sound- 0 – 7.0 km/h stepless (off-road) damping insulating, tinted laminated safety glass, 0 – 13.0 km/h stepless (creeper speed on-road) separate window shades for the sunroof window and 0 – 20.0 km/h stepless (road travel) windscreen Driving operation automotive driving using accelerator pedal, cruise Operator’s seat Standard air cushioned operator’s seat with 3D-adjustable arm- control function: storage of variable accelerator pedal rests, headrest, lap belt, seat heater, manual weight positions, both off-road and on-road adjustment, adjustable seat cushion inclination and Axles manual or automatic hydraulically controlled front axle length and mechanical lumbar vertebrae support oscillation lock Operator’s seat Comfort in addition to operator’s seat standard: lockable hori- Service brake two circuit travel brake system with accumulator; (Option) zontal suspension, automatic weight adjustment, wet and backlash-free disc brake adjustable suspension stiffness, pneumatic lumbar Automatic digging brake works automatically when driving off (accelerator pedal vertebrae support and passive seat climatisation with actuation) and when the machine is stationary (engage- active coal ment); the digging brake engages automatically – can Operator’s seat Premium in addition to operator’s seat comfort: active electronic be coupled with automatic swing axle lock (Option) weight adjustment (automatic readjustment), pneu- Holding brake wet multi-disc (spring applied, pressure released) matic low frequency suspension and active seat clima- Stabilization stabilizing blade rear + 2 point outriggers front tisation with active coal and ventilator stabilizing blade front + 2 point outriggers rear Control system joysticks with arm consoles and swivel seat, folding 4 point outriggers left arm console EW-undercarriage 2.75 m / 9' Operation and displays large high-resolution operating unit, selfexplanatory, colour display with touchscreen, video-compatible, numerous setting, control and monitoring options, e.g. air conditioning control, fuel consumption, machine and tool parameters Attachment Air-conditioning automatic air-conditioning, recirculated air function, Type high-strength steel plates at highlystressed points fast de-icing and demisting at the press of a button, for the toughest requirements. Complex and stable air vents can be operated via a menu; recirculated air mountings of attachment and cylinders and fresh air filters can be easily replaced and are Hydraulic cylinders Liebherr cylinders with special seal system as well as accessible from the outside; heating-cooling unit, shock absorption designed for extreme outside temperatures, sensors Bearings sealed, low maintenance for solar radiation, inside and outside temperatures Complete Machine Lubrication Liebherr central lubrication system for uppercarriage and attachment, automatically Noise emission ISO 6396 LpA (inside cab) = 72 dB(A) 2000/14/EC LWA (surround noise) = 104 dB(A) A 924 Heavy Lift Litronic 3 Dimensions D E A 924 W C H K Q1 I3 J3 H0974 M12 M2 B T4 L2 T22 B2 U3 B1 V X C Q J H0981 M1 M T4 L T1 B U4 B1 4 A 924 Heavy Lift Litronic mm Stick Two-piece boom 5.80 m HD A 2,525 2 pt. outriggers + blade 4 pt. outriggers B 2,750 m mm mm B1 4,260 V 2.25 7,780 7,780 B2 2,750 2.45 7,330 7,330 C 3,220 2.65 7,130 7,130 D 3,030 3.05 6,830 6,830 E 3,030 W 2.25 3,150 3,150 H 2,605 2.45 3,100 3,100 I3 465 2.65 3,100 3,100 J 80 3.05 3,200 3,200 J3 590 X 2.25 10,180 10,180 K 1,280 2.45 10,180 10,180 L 2,750 2.65 10,180 10,180 L2) 2,900 3.05 10,180 10,180 M 1,250 Dimensions are with attachment over steering axle M2) 1,400 M1 1,500 M12) 1,500 Q 350 Q1 250 T1 1,040 T22) 1,410 T4 1,190 U3 5,350 U4 4,980 2) Undercarriage-2 point outriggers front, stabilizing blade rear E = Tail radius Tyres 11.00-20 A 924 Heavy Lift Litronic 5 Backhoe Bucket with Two-Piece Boom 5.80 m HD ft m 12 H0980 Digging Envelope 11 with quick coupler 1 2 3 4 35 Stick length m 2.25 2.45 2.65 3.05 10 Max. digging depth m 6.30 6.50 6.70 7.05 30 9 Max. reach at ground level m 9.85 10.05 10.25 10.60 Max. dumping height m 7.75 7.90 8.05 8.35 8 25 Max. teeth height m 11.10 11.25 11.45 11.70 7 Min. attachment radius m 3.25 3.15 3.10 3.15 20 6 5 Digging Forces 15 4 without quick coupler 1 2 3 4 Max. digging force (ISO 6015) kN 148.5 139.7 131.9 118.8 10 3 t 15.1 14.2 13.4 12.1 Max. breakout force (ISO 6015) kN 169.6 169.6 169.6 169.6 2 924 5 t 17.3 17.3 17.3 17.3 1 Max. breakout force with ripper bucket 218.4 kN (22.3 t) 0 0 -1 Operating Weight -5 -2 The operating weight includes the basic machine with 8 tyres plus intermediate rings, -10 -3 two-piece boom 5.80 m (HD), stick 2.45 m, quick coupler SW48 and bucket 1,400 mm / 3 -4 1.35 m . -15 -5 Undercarriage versions Weight (kg) A 924 Heavy Lift litronic` with 2 pt. outriggers + stabilizer blade 27,100 -6 -16 1 A 924 Heavy Lift litronic` with 4 pt. outriggers 27,400 2 3 -7 4 -17 -8 11 109 87 65 43 2 1 0m 3530 25 20 15 10 5 0 ft Buckets Machine stability per ISO 10567* (75 % of tipping capacity) Stabilizers 2 point outriggers + stabilizer blade 4 point outriggers 1) raised down down Cutting width Capacity ISO 7451 Weight Stick length (m) Stick length (m) Stick length (m) mm m3 kg 2.25 2.45 2.65 3.05 2.25 2.45 2.65 3.05 2.25 2.45 2.65 3.05 8502) 0.75 620 yyyyyyyyyyyy 1,0502) 0.95 710 yyyyyyyyyyyy 1,2502) 1.15 810 yyyyyyyyyyyy 1,4002) 1.35 850 y y y y y y y y y y y y 1,5002) 1.45 880 y y y V y y y y y y y y 1,6002) 1.55 940 y y V V y y y y y y y y 8503) 0.75 690 yyyyyyyyyyyy 1,0503) 0.95 800 yyyyyyyyyyyy 1,2503) 1.15 910 yyyyyyyyyyyy 1,4003) 1.35 960 y y y y y y y y y y y y 1,5003) 1.45 1,000 y y y V y y y y y y y y 1,6003) 1.55 1,060 y y V V y y y y y y y y 8504) 0.80 630 yyyyyyyyyyyy 1,0504) 1.05 720 yyyyyyyyyyyy 1,2504) 1.30 800 y y y y y y y y y y y y 1,4004) 1.50 870 y y y V y y y y y y y y 1,5004) 1.65 890 y y V V y y y y y y y y 1,6004) 1.70 950 y VVVyyyyyyyy * Indicated loads are based on ISO 10567 and do not exceed 75 % of tipping or 87 % of hydraulic capacity, max.