Liebherr A924 User Manual

Wheeled Excavator
A 924
Operating Weight: 21,100 – 26,500 kg Engine Output: 129 kW / 175 HP Bucket Capacity: 0.55 – 1.65 m³
Operating Weight: 21,100 – 26,500 kg Engine Output: 129 kW / 175 HP Bucket Capacity: 0.55 – 1.65 m³
2 A 924 Litronic
Performance
Liebherr wheeled excavators have the performance to get building work done faster. The above-average high lift ca­pacity and the large digging forces deliver extraordinary productivity in application. More performance for greater effi ciency.
Reliability
Diesel engine, hydraulic components, electronic components, swing ring, swing drive and steel structure: developed, tested and produced by Liebherr. This produces the high quality you have come to expect, for a long service life and maximum machine availability. Greater quality for higher reliability.
Comfort
The newly developed Liebherr operator’s cab offers the ma­chine operator the necessary space and comfort to make optimum use of the machine’s performance. The operator seat offers the following features as standard, amongst oth­ers: air suspension, seat heating and lumbar support. Great comfort for higher performance.
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Effi ciency
The A 924 Litronic combines outstanding performance with high effi ciency. The powerful Liebherr D 934 L diesel engine in conjunction with the effi cient Liebherr particle fi lter reduc emissions and operating costs.
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A 924 Litronic 3
4 A 924 Litronic
Tra vel d rive
• Newly developed travel drive with high traction force for high travel speeds both in the plane and on gradients.
• Reduces unproductive travel time between the working points and on the building site.
• Faster on site. Faster productive.
Performance
Liebherr wheeled excavators are used on building sites all over the world, where they embody force and speed. Using Liebherr excavators, machine operators achieve impressive levels of performance, day-in and day-out. Whether in classic earthmov­ing, in roadway construction or for digging trenches and laying pipes: more can be achieved faster with Liebherr wheeled excavators.
Power, dynamics and precision
Lifting more
Being more effi cient
Working with precision
The intelligent structure of the uppercarriage and sep­arate mounting of the hoist cylinders permits a signif­icant lift capacity. That makes the A 924 Litronic the ideal machine for pipeline and trenching workplaces. The most powerful wheeled excavator in its class can effortlessly accomplish tasks such as lifting and mov­ing precast concrete elements and pipes or pulling out shoring boxes.
The A 924 Litronic combines power and dynamic prop­erties. This makes it possible to complete heavy-du­ty earthmoving jobs faster, so that new tasks can be started sooner. As a result, this wheeled excavator is the effi cient solution for use on all construction sites which require a high digging performance and mobile fl exibility.
The exceptional sensitivity of the hydraulic system per­mits precise lifting and positioning of heavy compo­nents. The bottom of the trench and other demanding profi ling work can be accomplished precisely and in the shortest possible time. For earthmoving, load-lift­ing or grading work, it is easily possible to adjust the speed of the machine to match the requirements using the MODE switch.
Digging force
• High digging and breakout force in the fi eld.
• For continuously high digging performance even in tough ground.
• More digging force for faster results.
A 924 Litronic 5
Joystick steering
• The optional joystick steering function enables the operator to steer the wheeled excavator using the mini-joystick.
• Working and travelling movements can be executed simultaneously without having to move hands.
• More effi cient operation for greater productivity.
6 A 924 Litronic
Bright and durable
• The LED rear lights fi tted as stand­ard not only look good, they also have a high brightness level and an extremely long service life.
• The LED front outline marker fi tted as standard make it easier to see the machine on the road, and thus provides greater safety.
Reliability
Reliability offers safety. Safety that signifi cantly infl uences the success of a project. Whatever the weather, Liebherr stands for safety - with reliable construction ma­chines and customer-oriented sales and service partners. This means a Liebherr construction machine is exactly what it should be: an investment that pays off.
Durability and innovation
Quality
Expertise
Service
Key components such as diesel engine, diesel particle fi lter, hydraulic components, electronic components, swing ring and swing drive are developed, tested and produced by Liebherr itself. The signifi cant depth of production ensures the highest quality and permits optimum coordination of components. The high-qual­ity Liebherr components are also used in many other sectors and products.
Liebherr has been developing and producing hydrau­lic excavators for more than 60 years. This experience and the feedback from customers, sales and service form the basis for putting innovative ideas into prac­tice. The result: wheeled excavators with excellent quality and reliability.
A fast response when service is required minimises downtime and ensures that schedules can be met. This is made possible by a spare part availability rate in excess of 98 % and a 24 h delivery service for spare parts*. Service engineers trained by Liebherr carry out service and maintenance work on the spot, quickly and in accordance with the manufacturer’s specifi cations. * subject to location
More rear visibility ­and to the side too
• The standard camera for rear­view monitoring is integrated in a protected location in the counterweight.
• Optional camera for the right side area, for greater safety on the site.
• Greater visibility for more safety.
A 924 Litronic 7
Maintenance without draining oil
• Standard shut-off valve for disconnecting the oil tank from the hydraulic system.
• For simple maintenance work on the hydraulic components without draining the hydraulic oil.
• Reduced maintenance time for higher machine availability.
8 A 924 Litronic
Refuelling
• Using the optional refuelling pump, the machine can be refuelled directly from a fuel container.
• Remote cable operation and auto­matic shut off when the tank is full, for greater convenience and shorter refuelling times.
• Topping up. Simple, quick and safe.
Comfort
The modern Liebherr operator’s cab offers the best preconditions for healthy, con­centrated and productive working. The features which make this possible include the standard feature of an air-sprung operator seat with seat heating, the automatic air conditioning and the ergonomically arranged control elements with touch screen indicating unit. One example of the extensive safety equipment is the roll-over pro­tection system (ROPS) for the cab fi tted as standard according to ISO 12117-2.
An advance in comfort and convenience
Automatic air conditioning
Operator seats
Detailed solutions
The automatic air conditioning offers convincingly in­tuitive operation. Temperature, blower setting and the various air nozzles in the head, chest and foot areas are set using the touch screen on the indicating unit. The defrost/defog one-button function clears fogged up windows in the shortest possible time. The fi lter for the cab air can be changed easily and conveniently from the outside.
The Standard, Comfort and Premium operator seat versions that are available have recognized orthope­dic properties, and offer sitting comfort at the highest level. Even the standard operator seat offers an exten­sive range of standard features such as air suspen­sion, seat heating, headrest, lumbar support and many more besides.
The A 924 Litronic offers numerous detailed solu­tions for greater comfort and effi ciency. For exam­ple, two different steering wheel versions can be selected: for regular civil engineering tasks, for ex­ample, it is recommended to have the thin steering wheel since it affords better visibility of the working area. Also, the stabiliser blade does not have any lubrication points and is maintenance-free. No need for time-consuming lubrication.
Convenient radio operation
• Optional radio with MP3-capable CD player and front aux-in for con­necting external playback devices.
• Operation of the radio using the indicating unit: station search, volume control, mute function.
• Simple operation for greater convenience.
A 924 Litronic 9
Intuitive operation
• Display of the machine data and camera image on the large 7-inch indicating unit with touch screen and direct access via menu bar.
• 10 user-programmable memory slots for working tools, which can be used for quickly and easily setting the oil pressure and oil fl ow at the push of a button when changing tools.
• Quick access keys can be programmed by the machine operator with frequently used menu items.
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