Escavadoras
Wheeled Excavator A 904 C Operating Weight: 41 ,200 Engine Output: 105 kW/ 143 HP Bucket Capacity: 0. 40- 1. 40 yd3 NTB A904C US abl. indd 1 12. 02. 2008 Uhr – 45,500 Ib orsg Operating Weight: 41 2 A 904 C Litronic o to view NTB A904C US abl. irldd 2 Performance Comfort increases machine performance, reduces fuel consumption and minimises service and maintenance casts. Due to Liebherrs well- balanced range, the ideal machine can always be selected to suit every application. NTB A904C US abl. ndd 3 Liebherr diesel engine • Long life-expectancy, expansive cylinder capacity and increased weight • According to level IIIA/Tier 3 ?? Specially designed for construction machinery operation • Oil supply even with 100 % tilt angle 4 A 904 C Litror-,ic NTB A904C US abl. indd a 12. 02. 2008 13:54:35 Uhr performance The A 904 C Litronic has been designed for maximum production. Perfectly harmonized, the Liebherr-developed and Liebherr- manufactured components including diesel engine, hydraulic pum and motor, as well as swing gear and cylinders, guarantee ormance.
Tremendous PAGF capacities Canalization and the lifting of pipes are everyday tasks for rubber-tyre excavators. These requirements are endorsed via an intelligent concept of uppercarriage ectioning together with the positioning of the Liebherr engine, mounted at a transversal angle directly in front ofthe counterweight. Separate hoist cylinder bearing points at the upper end of the basic boom also increase the lifting capacities considerably. 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.
Performance without compromise Maximum performance and maximum forces are available to the operator at all times. Rugged undercarriage Litronic • Various undercarriage designs featuring elded, durable outriggers allow safe positioning, optimum stability, and long life-expectancy of the machine for every application. • Increases productivity of the excavator Features • High-tensile steel plates in highstress areas for the toughest of applications • Well-thought out and secure bearings for attachments and cylinders • Maximum resistance, even when lifting heavvy loads 6 12. 2. 2008 13:54:36 Uhr Reliability Liebherr construction machinery is proven all over the world every day on the most diverse of building sites. Many years of experience as the world’s largest manufacturer of rubber-tyre excavators, continuous evelopment and the introduction of the latest technology are evident in every machine, guaranteeing absolute safety during applications. With its rugged design, and featuring Liebherr components, the A 904 C Litronic has been designed for extremely long life- expectancy.
Quality in detail Liebherr components Components such as engine h draulic cylinders, swing gear and electric pa specially PAGF OF operator can thus concentrate fully on the task at hand, due to the integrated on-board electronics performing a constant balancing of pre-defined set data. Filtenng of metallic filings by the magnetic rod, fitted n the hydraulic system as standard, increases life-expectancy of the hydraulic components and the Oil.
Rugged attachments Working attachment The durable attachments have been designed for the toughest of applications. All components are optimised to the FEM methods and the hoist cylinders feature bearings on both sides. Piping The hydraulic lines are arranged optimally to safeguard against damage. The electric cabling is made with high-grade materials, thus guaranteeing a reliable supply to the consumer. Liebherr hydraulic cylinders Functional safety • Specific size for each machine • Essential operating data is stored and can e recalled at any time. ?? High-grade surface coating of the piston rads • Al Liebherr cylinders feature special long-life sealing systems • Shock absorption at both heavy-duty digging-and loading performance under severe conditions – Lift-Mode: for precise handling of heavy loads – Flne-Mode: for fine control at precislon work NTB A904C US abl. indd 7 7 Large-sized cab • Adjustable steering column • Operators seat, adjustable in height and can also be adapted to the individual weight of the operator. • Consoles with or without possibility of horizontal adjustment. ?? Large roof window • Sun bllnds NTB A904C US abl. indd 8 The excavator operator is provided with an ergonomically- arranged working area within Liebherr hydraulic excavator cabs. All switches and functions are logically a safe overview of the entire working area. 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.
Maintenance features Easy maintenance Ease of operation • Suficient storage space for a commercially-approved cooler box behind the operator’s seat ?? Drinks holder and storage compartment in operators cab • Large storage box behind the operators cab A shut-off valve, fitted to the hydraulic tank as standard, disconnects the system and guarantees ease of maintenance to the hydraulic system. Easy access Storage compartment Everything has its place A central lubrication point for swing gear and maln parts of the attachment.
Large maintenance flaps allow comfortable and safe access to all maintenance points. PAGF 7 NTB A904C US abl. indd 9 9 12. 02. 2008 1_Jhr Hydrostatic fan drive • Accelerated warm-up period • Guaranteed constant Oil quality as a esult of constant Oil temperature • Increased life-expectancy of drive components • The fan only runs at the output required, thus conserving fuel and reducing the noise level considerably 10 A 904 C Litror,ic NTB A904C US abl. ndd 10 Economy Liebherr Offer a wide range of models, guaranteeing optimum suitability for every application. Easy access to components, as well as the proven service offer allaws maintenance tasks to be performed in the shortest oftimes, thus reducing operating costs considerably. Low operating costs Liebherr engine Maximum power ofthe engine is enerated even when the necessary runnine at minimum spee nd 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.
Investment for the future Extensive service Offer High resale values Service-orientated • The semi-automatic central lubrication system fitted as standard saves on time-consuming greasing • Long fllling intewals thanks to large fuel tank • Consistently high performance thanks to series-production fuel cooling system Proven service offers assured by our service personnel trained directly at the manufacturing plants, and endorsed by our tight-knit network of dealers, provide ervices in all required areas.
Direct contact to Liebherr is guaranteed via complete integration of all service points in our own Liebherr logistics system. Electronic access to our global spare-parts management allows a 98% availability of spare-parts 24 hours a day. Liebherr excavators are built with high-grade materials and quality production to provide a long-term operational life- span, thus guaranteeing maxmum resale values. Modular quick-change system made by Liebherr • Likufix – connects all hyd nted • The suitable digging tool for every application. Your machine is a multi-functional tool arrier and Will pay for itself very quickly indeed. ?? Mechanic and hydraulic Liebherr quick-change adapter NTB A904C US abl. indd 11 Technical Data Engine Rating per ISO 9249 Model levei IIIA,’ Tier 3 Type Bore/Stroke Displacement Engine operation unit pump system 143 hp (105 kW) at 1800 rpm Liebherr D 934 S according to 4 cylinder in-line 4. 8/5. 4 in 390 ir-,3 4-stroke diesel turbo-charged and after-cooled reduced emissions water-cooled and integrated motor Oil cooler Cooling system Air cleaner cleaner, primary and safety elements Fuel tank Engine idling Electrical system Voltage dry-type air cleaner with pre- 93 gal sensor controlled