Owner manual

5
ER 934 C Material HandlersER 934 C Material Handlers
Electric motor
• Especially designed for tough
applications.
• The dimensions of the motor
allow for the full power to be
drawn from the kinematic chain
• Maximium performance
of the machine
Protected electric cabinet
• Provides IP55 class protection
• Double fi ltration system
(accessible from the outside)
places the cabinet under
pressure, which avoids any
dust penetration
Distributor
• Fine response of hydraulic control
for maximum working precision
• Immediate response to operator`s
commands
• Three-pump hydraulic system,
one of which is a closed circuit
dedicated to the slewing of the
Material Handlers
Cooling system
• Generous dimensions for high
cooling capacity
• Vertical arrangement for
increased efficiency and minimal
incursion of foreign bodies
• Powered by a thermostatically
regulated hydraulic motor
• Reversible actuation of the fan
(without time limit) as option
Low noise emissions
• Really quiet in operation.
• Measured acoustic level is from
4 to 5 dB lower than an equiva-
lent diesel-engine version.
• Level of noise intensity from a
Liebherr electric excavator
represents less than a third
of the noise generated by a
diesel-engine unit
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