Liebherr A 900 C Litronic - Manual (Page 5)

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A 900 C Litronic
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 development and the in-
troduction of the latest technology are evident in every machine, guarantee-
ing absolute safety during applications. With its rugged design, and featuring
Liebherr components, the Liebherr hydraulic excavators have been designed
for extremely long life-expectancy.
Quality in detail
Liebherr components Components such as engine, hydraulic cylinders,
swing gear and electric parts have been specially
designed, tested and manufactured by Liebherr
for construction machinery. Parts including en-
gines and pumps for example, are already being
synchronized with each other as early as the
construction phase, yielding a constant standard
of quality.
Functional safety Safety-orientated components, fi tted as standard,
allow high availability.
The operator can thus concentrate fully on the
task at hand, due to the integrated on-board elec-
tronics performing a constant balancing of pre-
defi ned set data.
Filtering of metallic fi lings by the magnetic rod, fi t-
ted in 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 cy-
linders feature bearings on both sides.
Piping
The hydraulic lines are arranged optimally to sa-
feguard against damage. The electric cabling is
made with high-grade materials, thus guarantee-
ing a reliable supply to the consumer.
Liebherr hydraulic cylinders
• Specifi c size for each machine
• High-grade surface coating of
the piston rods
• All Liebherr cylinders feature
special long-life sealing systems
• Shock absorption at both sides
in the working cylinders
Functional safety
• Essential operating data is stored and can
be recalled at any time.
• Control and monitoring functions increase
functional safety of the machine.
• Four fi xed working modes for output discharge
facilitate an effective and effi cient operation:
– Eco-Mode: for high output at big fuel savings
– Power-Mode: for heavy-duty digging-and loading
performance under severe conditions
– Lift-Mode: for precise handling of heavy loads
– Fine-Mode: for fi ne control at precision work
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