LeeBoy 8510b - General Information; Engine; Hydraulic System; Torque Hubs

4-2 LeeBoy Model 8510B Conveyor Paver
Specications
General Information
The descriptions and specications provided in this
section are applicable to the LeeBoy Model 8510B
Conveyor Paver.
This section contains a description of how the major
components operate. It also includes specications for
the major system components. Included in this section
are paver weights, dimensions, performance, and major
system specications for the paver.
Engine
The LeeBoy Model 8510B Conveyor Paver uses either
a Kubota, V3600-T-E3B 84.5 HP or CAT, C3.4 T NA 83
HP four-cylinder engine to drive the hydraulic function
pump and steering pump. The engine is mounted near
the center of the paver and is accessible through
several access doors in the engine cover.
A fuel lift pump mounted on the engine draws diesel fuel
from the fuel tank. The fuel tank is mounted at the right of
the engine compartment.
An air cleaner is mounted on the top of the right-hand
pump cover. The air cleaner removes ne particles such
as dust, sand, chaff and lint from the air.
As air is taken into the air cleaner assembly, a cyclone
type action deposits some of the ne particles in the
evacuator mounted on the bottom of the air cleaner
housing. The evacuator is held closed during engine
operation by suction. When the engine is shut off the
weight of the debris helps to open the rubber aps
allowing the debris to fall out. The rubber aps can also
be squeezed to open for cleaning.
Primary and secondary fuel lters remove contaminants
from the diesel fuel before the fuel ows to the injection
pump for injection into the engine combustion chamber.
A radiator mounted on the left side of the unit cools the
engine. As coolant ows through the radiator, airow
from the engine-driven fan removes heat from the
coolant.
Refer to the engine owner’s Operation and Maintenance
Manual for a complete description of the engine.
Hydraulic System
The hydraulic system includes four hydraulic pumps
driven by the engine: 1) Left Drive Pump, 2) Right Drive
Pump, 3) Conveyor Pump, 4) Auger and Cylinder Pump.
The auxiliary pumps are mounted on the rear of the drive
pumps, to the right side of the engine, and driven by the
drive pump output shaft. This gear type pump provides
hydraulic ow to operate all the hydraulic cylinders used
to control the paver functions.
Each auxiliary pump has it’s own suction hose from the
tank. The conveyor pump will also charge the Left and
Right Drive Pumps.
Torque Hubs
The paver drive system contains two torque hubs. The
torque hubs provide power to propel the tracks.
Hopper
The hopper wings are hydraulically controlled to raise
and lower. The hopper wings also hinge in and out to
allow for more compact transportation. The hopper
when fully open can hold a payload up to 7 tons.
Material in the hopper is moved toward the back of the
paver to the screed by conveyors. Each conveyor is
activated independently at the operator platform and is
controlled on and off with limit switches.
Augers
The Augers rotates clockwise (CW) and counter
clockwise (CCW) to assist in moving material from the
conveyors to the screed. The augers can be manually
controlled at the operator platform on the paver or by
the screed operator on the screed.
The auger can also be controlled automatically when
the sonic auger system is installed and active. The sonic
auger sensor mounted on the screed end gates detect
the amount of material present and control the auger to
keep the material ow constant.
Operator Platform
The operator platform allows easy and convenient
control of most all functions of the paver and screed.
The paver can be operated from either the left-hand or
right-hand side depending on which control panel side
is active and best suited to the working conditions.
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