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The front-end equipment elements are
manufactured of high-strength steels, ensuring
trouble-free operation under high dynamic
loads. A specific geometry of dipper and extended
rating of dippers allow to load rocks
into the trucks with 110 -150 t capacity, and
also into the railway dumpcars.
Rotation gears are planetary. They are
more compact and reliable in comparison with
cylindrical ones.
The equally-spaced location of gears excludes
a radial loading on bearing of king journal.
Boom hanger is guyed. Crowding shaft and
saddle blocks are erected with roller bearings.
The excavator is equipped with centralized
grease lubricating automatic system.
Electric motor of the main mechanisms is
direct-current.
The crawler is with open large rollers, with
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arranged above the ground tumbler sprockets.
Driven electric motors, located on aclinal
bracket, provide easiness of erection,
centering adjustment and execution of repair
works. The forced air-cooling of the propel
motors provides unlimited practically drive
operating regime at travel.
Two-axis hand-worked command-apparatuses,
seat-stand with vibration insulation
and air-conditioning system create the
comfortable working conditions for operator.
Digital control system provides optimal
mechanical characteristics of drives at high
efficiency factor and power factor values.
Digital information and diagnostic system
executes automatized control of performances,
control of technical parameters
and diagnostics of electrical and mechanical
equipment.
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