Liebherr LR 634 Litronic - Manual (Page 11)

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11 LR 624 Litronic LR 634 Litronic
Reliability
Liebherr crawler loaders are designed for longev ity. Parts that are subjected to
considerable stress are produced from high-strength materials, while critical
components are well protected. The result is maximum reliability and availability.
Liebherr quality
Everything under
one roof
The machines are developed, tested and built at
the Liebherr production plant in Telfs (Austria). This
ensures the highest quality of the entire process
and of all components from the manufacturer.
High Liebherr quality
standards
Major assemblies such as the diesel engine, hy-
draulic cylinders, final drives and engine electronics
come from state-of-the-art Liebherr competence
centres and production plants in Germany and
Switzerland.
Dependable partner Liebherr furthermore maintains strong, well-estab-
lished partnerships characterized by joint devel-
opmental work and rigorous quality controls.
Proven design
Robust construction
machine engine
The low and constant rated speed of the extreme-
ly robust Liebherr diesel engine guarantees maxi-
mum operating dependability.
Demand-responsive
cooling
The hydraulically driven fan controls cooling per-
formance according to demand and independent-
ly of the diesel engine speed.
Protected electrics High-quality cable protection and a well-designed
cable layout ensure safe operation in hot, cold,
highly vibratory and dusty conditions.
High functional safety
Automatic output
control
Electronic engine speed sensing control enables
the efficient conversion of the installed engine out-
put into hydraulic efficiency.
Safety warning devices The centrally positioned digital display provides
the operator with reliable information on all oper-
ating data and any service work required.
Dynamic brake system Self-locking of the hydrostatic travel drive acts as
a non-wearing service brake and enables precise
deceleration, even in extreme situations.
Key technologies
from Liebherr
• Hydraulic cylinder: high-quality
surface coating of the connecting
rod, flanged head.
• Travel drive: innovative double
floating ring seal with electronic
seal monitoring.
• Diesel engine: robust construc-
tion machine engine with indi-
vidual cylinder heads, deep oil
sump, wet cylinder sleeves and
Liebherr engine management
electronics.
Cushioned track
frame suspension
• The majority of impact
loads are absorbed via
the cushioned suspension
of the track frames.
• Heavy duty elastomer
bushings are used for
the cushioned track frame
suspension, and are
straightforward to maintain.
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