Liebherr ER 954 C Material Handler - Manual (Page 11)

11 ER 934 C ER 944 C ER 954 C Material Handlers
Economy
Investing in the acquisition of an electric Material Handler is a great long-term
advantage. Constant increases in the costs of conventional energy sources are
pushing up operating charges, and reducing profit margins considerably. En-
vironmental criteria, in particular CO
2
emissions, are also playing a constantly
greater part in the choice of power systems and working methods. With the elec-
tric drive, Liebherr offers an economical alternative to conventional diesel-engine
machines, and a solution with real respect for the environment. Also, the excava-
tor is permanently available, with no need to refill. There are no constraints (e.g.
DPF or AdBlue).
Flexibility and versatility Liebherr electric Material Handlers are multi-tasking
machines. With a wide range of tools, which can be
combined with Liebherr quick-coupling systems,
they can create a degree of flexibility and versatility
which has no comparison anywhere.
Energy costs cut The energy yield from an electric motor is greater
than that of a diesel-engine. Delivering the same kW
output in hydraulic power costs three to five times
less with an electric excavator than with a diesel-en-
gine unit. Liebherr excavators deliver the full power
from their kinematic chain and at a lot less cost.
Increased service life The smooth actuation of the electric drive and the
reliability of Liebherr hydraulic components mean
that the maintenance costs of the excavator can be
reduced considerably.
The absence of vibrations and variations in output
from a motor, which operates on a torque principle
and at constant output, means that the stress on
the kinematic chain can be reduced and the option-
al pre-heating of the hydraulic system allows for the
hydraulic oil to be kept at an optimum temperature
right from the start.
Maximum availability The costs associated with maintenance operations
are reduced to a minimum, and that also cuts down-
times. The electric motor does not require any main-
tenance beyond lubrication of the bearings every
3,000 hours. No filters (air, oil) to be changed and no
draining of engine oil throughout the entire service
life of the machine.
Kinematic chain made by Liebherr
• Constant provision of power
for the kinematic chain
• Reduced wear of hydraulic
components
• Optimum exploitation of the hydraulic
power potential of the system
Backhoe stick with sorting grapple
• Numerous combinations are associa-
ted with Liebherr’s wide range of tools
(straight and angled mono boom,
sticks and industrial sticks, etc.)