Liebherr HS825HD User Manual

Liebherr hydraulic

crawler cranes

Defining
new standards

Flexibility, rentability and excellent performance are the
distinguishing features of the hydraulic crawler cranes (HS
series). On the international building machinery market
Liebherr-Werk Nenzing GmbH, Austria, is the leading pro­ducer of modern hydraulic crawler cranes, lift cranes and
carrier machines for special deep foundation applications.

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Performance through
leading technology

The hydraulic crawler cranes achieve excellent per­formance due to leading technology developed in-

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performance winches with integrated brakes, the electronic
control as well as the machine and process data recording
system defi ne new standards.

house. State-of-the-art Liebherr diesel engines, high

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Flexibility in all respects

With their modular concept Liebherr hy­draulic crawler cranes fulfi l all requirements,
especially in the fi elds of special and deep
foundation, extraction, material handling
as well as demolition and recycling.

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Economy in all respects

Effi cient transport, easy assembly and
high productivity combined with low op­erational costs are convincing features
of Liebherr hydraulic crawler cranes.

First-class comfort for
higher productivity

Even the standard equipment in­cludes numerous innovative tech-

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eration. The ergonomic cabin design provides the
operator with an unobstructed view of the entire
working area.

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Liebherr guarantees continuous availability of its hy­draulic crawler cranes throughout the world.

nical features ensuring ease of op-

Effective service

Thanks to low maintenance require­ments, the possibility of remote di­agnosis, quick assistance on site
and an effi cient spare parts supply,

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Performance through
leading technology

High fl exibility and excellent performance determine the application possibilities of Liebherr hydraulic crawler cranes.
Whether used with dragline bucket, slurry wall grab or casing oscillator – the large dimensioned Liebherr diesel en­gines always guarantee maximum performance. Equipment such as vibrators or casing oscillators can be operated
without additional power pack. Moreover, the powerful and maintenance-free free-fall winches are designed to fulfi l

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highest demands and afford effi cient and safe operation.

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Unique selling points:

• State-of-the-art electronic control system

• Powerful Liebherr diesel engines

• Large dimensioned and maintenance-free free-fall winches

• Strong crawler and swing drive components

• Extremely robust steel structure

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Control system

The core of the Liebherr hydraulic crawler cranes is the Litronic control
system. Developed and manufactured by Liebherr, this comprehensive
system encompasses all control and monitoring functions and is de­signed for extreme environmental conditions in tough assignments.

All information, warnings and failure indications required for the cur­rent machine operation are clearly displayed on the monitor in the
operator‘s cab and stored. Documentation of operating data enables
optimum diagnosis as well as early detection and prevention of more
serious defects.

An electro-hydraulic proportional control allows several movements to
be performed simultaneously. This ensures that all categories of loads
can be positioned with utmost precision.

Automated control systems, e.g. for dynamic soil compaction or an
“Interlock” control system for dragline application are available as an
option.

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Drives

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Liebherr hydraulic crawler cranes are equipped
with powerful Liebherr diesel engines. Specially de­signed for dynamic applications in heavy-duty con­struction tasks, they are extremely reliable, durable
and easy to service. The electronic control monitors
and checks all machine data. Since engine elec­tronics and crane control are optimally matched,
the diesel engine can be directly inter-linked with
the regulation of the hydraulic system, thus afford­ing even more ease of operation. Possible failures
are detected and localized immediately by the diag­nostics system. All movements can be carried out
simultaneously. Depending on the machine class,
diesel engines ranging from 180 kW to 670 kW
power are available.

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Winches

The maintenance-free Liebherr free-fall winches are installed as complete
units. The new concept with integrated drive and multi-disc brakes allows
increased drum width with the same outside dimensions, thereby increasing
rope capacity on the fi rst layer. This produces a longer rope life and reduced
operational costs. The integrated free-fall brakes prove their worth espe-

cially in diffi cult free-fall operations with heavy loads. The main winches are

driven via an axial piston displacement pump and a variable fl ow oil motor

in closed circuit. This design allows precise work cycles for all winch

movements. The supplied energy is ideally used in acceleration and

braking of the winches and regained when operating in the power

lowering mode.

Through automatic speed adjustment according to line pull

the high pressure controlled, variable fl ow hydraulic motors

allow full utilization of engine power even when working

with intermediate load.

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For example, an “Interlock” control system for dragline operations allows
power lowering of the grab line when raising the dragline bucket with the
hoist rope which signifi cantly reduces fuel consumption. The tagline winch
is used as a constant tension or free-fall winch and enables effi cient work
with grab or demolition ball.

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Steel construction

The hydraulic crawler cranes’ uppercarriage with its robust and torsion-re­sistant box design is mounted on a large undercarriage featuring wide track
and long crawlers. This results in good ground pressure characteristics and
stability.

The external, large dimension teeth of the Liebherr swing drive guar­antee optimum absorption of the high torque combined with mini­mum wear. Roller bearings in the swing drive ensure a superior,
low-fi t connection between upper and undercarriage. For
special applications, e.g. rotary drilling or dragline applica­tion, an additional increase in torque is achieved through
the installation of a second and/or third swing drive.

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Flexibility
in all respects

A wide range of possible applications is the secret of the
Liebherr hydraulic crawler cranes’ fl exibility and lays the
foundation for optimum utilization.

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leading to a virtually unlimited variety of applications. The hydraulic crawler
cranes are suitable for material handling with grab or dragline bucket,
demolition jobs, dynamic soil compaction, applications with slurry wall
grab or casing oscillator.

Thanks to the modular design, which is typical for Liebherr,
every crawler crane can be confi gured for its special job,

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Dragline operation

The electro-hydraulic continuous proportional control of Liebherr hydraulic crawl­er cranes enables precise and simultaneous crane movements, which are indis­pensable for dragline applications. In addition, a second or third swing drive – if
required – increases swing torque resulting in short swing cycles and fast loading
cycles. The “Interlock” control system, which has been specially developed for
dragline applications, allows power lowering of the grab line when raising the
dragline bucket with the hoist rope, which saves energy and prolongs service life
of the hoist rope. The hydrostatic winch drive adapts the rope speed to the soil
conditions and always provides optimum fi lling of the dragline bucket.

Machines offering production levels of 80 - 400 m³ per hour and digging

depths of 6 - 24 m are available.

Grab operation

The robust design of Liebherr hydraulic crawler cranes combined with the high line pull of the main
winches is ideal for working with heavy grabs. Hydrostatically driven hoist winches with variable fl ow
hydraulic motors for optimum fi lling, precise lowering and emptying of the grab, automatically distribute
the load on both winches and convert the installed engine power into maximum hoisting speed even
when working with intermediate load.

When working with material handling grabs, the constant tension winch with free-fall prevents swinging
of the grab and ensures exact positioning of the material. In combination with the powerful swing drive
this results in quick work cycles and excellent turnover in material handling.

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When working with a slurry wall grab, the hydraulic free-fall winches enable
precise grab handling e.g. during emptying directly onto a truck. Furthermore,
precise grab control is supported by electronic multi-functional joysticks. These
joysticks incorporate all operating elements required during operation as well
as engine speed control. Thus, the operator is able to fully concentrate on his
operating area.

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Soil compaction
and demolition

For dynamic soil compaction Liebherr offers an automated free-fall control system creat­ing rope tension just before the drop weight hits the ground which reduces rope wear to a
minimum. Furthermore, this control system avoids any slacking of the rope on the winches
which is typical during free-fall applications.

Although demolition jobs present an extreme situation for operator and machine, the
design of the Liebherr hydraulic crawler cranes guarantees optimum stability even when
working with long booms. The large dimensions of the tubular booms enable lateral striking
with the demolition ball even at great heights.

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Special equipment for demolition
and soil compaction:

• Massive protection and armoured glass for the operator’s cab

• Hoist rope guides on the boom

• Winch for use of a personnel basket

• Cab tilting device for a better upward view

• Additional hydraulics for operation of concrete cutters

• Tagline winch for the demolition grab

• Control system for soil compaction

• High-pressure windscreen wiper system

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Lifting application

Only the extremely fl exible, extendable and highly effi cient boom system
of Liebherr hydraulic crawler cranes is capable of fulfi lling the widest
variety of jobsite requirements. Due to the integration of the load mo­ment limitation in the control system some additional components, which
otherwise would have been necessary, are no longer required. The boom
confi guration can be pre-selected quickly and easily on the monitor in the
operator’s cab. The powerful system allows every possible equipment
confi guration to be operated without changing the software.

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Liebherr hydraulic crawler cranes
offer the following boom configu­rations:

• Main boom

• Auxiliary jib

• Fixed jib

Thereby, the fi xed jib sections and heads can be used for all
hydraulic crawler crane types.

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Special equipment

All product-related innovations have been developed in close co-operation
with customers and operators. This guarantees optimum rentability and
user-friendliness. The close contact between customers and manufacturer
is of benefi t to all Liebherr partners, whenever the customers’ own ideas
and solutions are put into practice.

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Economy
in all respects

Economy and good customer service commence with the machine’s trans­portation. Low weight and the possibility to load the single components in
a space-saving manner enable smooth transportation of Liebherr hydraulic
crawler cranes on all roads. This provides maximum savings in time and costs

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The self-assembly and self-loading system signifi cantly reduces expenditure of time and
money. Even auxiliary cranes, which are usually required, become redundant.

For the operation of Liebherr hydraulic crawler cranes the main focus is put on economy, reli­ability and cost-effectiveness. These features are provided by robust and durable components,
low fuel consumption and low maintenance requirements. This is true for the powerful Liebherr
diesel engine as well as for the crane winches, the undercarriage and all other components.

even before the machine starts work on the jobsite.

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Efficient transport

Solid but light construction and compact design distinguish the components of Liebherr
hydraulic crawler cranes. Both of these basic features – low transport weight and low dimen­sions – enable Liebherr to guarantee unhindered transport on all roads on the way to the site.
All equipment can be transported on standard trucks and many crane parts are designed to
fi t into standard containers.

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Furthermore, the transport volume is reduced by placing the luffi ng jib sections into the main
boom sections and thanks to their low dimensions, counterweight pieces can be placed be­low the boom sections for transportation. Specially designed brackets allow storage of the
pendants and pins on the boom sections.

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Quick and easy
assembly

A special feature from Liebherr is the time and cost saving self-assembly
and self-loading system. The auxiliary crane usually needed and its related
costs are eliminated thanks to this standardized system.

For transportation of the heavy hydraulic crawler cranes the crawlers have
to be removed from the basic machine. Self-assembly starts with the
unloading of the basic machine. The hydraulic crawler crane raises itself
using hydraulic jacks (Jack-Up System) allowing the low loader to sim­ply drive away. Subsequently the uppercarriage unloads the crawlers,
counterweight and boom sections using either its A-frame or boom foot.
Hydraulically activated pins, quick connections and an auxiliary winch for
rope reeving facilitate and accelerate the assembly process. All boom con­fi gurations can be erected by the crawler cranes themselves.

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Cost-effective operation

For the contractor the costs per achieved production unit are of vital importance.
This is why Liebherr offers a highly effi cient machine with low operational costs.
All applied components are designed for reliability and longevity in order to reduce
downtime and minimize repair costs.

Apart from their excellent performance, Liebherr diesel engines are outstanding in
their economical consumption. Moreover, the maintenance-free free-fall winches
as well as the lifetime lubricated undercarriage components are equally customer­friendly and signifi cantly reduce maintenance requirements.

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First-class comfort for
higher productivity

In the spacious cabin featuring a seat with multiple adjustments as well
as air conditioning, all operating elements are clearly and ergonomi­cally arranged. All machine movements are controlled proportionally
and precisely by one joystick, one double T-lever and foot pedals. As

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view of the entire working area.

Everything has been done to facilitate the handling of the hydraulic crawler crane for the
operator. Stepless cabin tilting up to 20 degrees for a better upward view is available
as an option. For special applications Liebherr also offers hydraulic cabin elevation. All
service points are easy to access which considerably facilitates maintenance work.

an option two joysticks for crane operation and special applications
can be delivered. Generous all-round glazing ensures an unobstructed

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Effective service

Liebherr guarantees its customers optimum world­wide service and availability of spare parts at any
operating point. Moreover, failures can be detected
and sometimes directly repaired via GSM service

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this modem. Downtime is reduced, the machine is available for a
longer period of time and consequently time and costs are saved.

modem and remote diagnosis. Software updates as
well as maintenance work can be carried out with

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Rapid service
on site

Permanent readiness for operation is a major prerequisite for a smooth
and effi cient application on the jobsite. Downtime is enormously ex­pensive and has to be reduced to a minimum. A tight network of
service stations with qualifi ed contacts and well-trained personnel
guarantees quick assistance at any place and any time. The required
spare parts are also available at short notice.

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Liebherr-Werk
Nenzing GmbH

Printed in Germany by Höhn BK-RP LWN-10350607-2.5-04.07

Liebherr-Werk Nenzing GmbH

Postfach 10, A-6710 Nenzing
콯 [phone], Fax [phone]
www.liebherr.com, E-Mail: [e-mail]

Illustrations and data may differ from standard equipment. Subject to change without notice.