Hog Technologies Stripe Hog SH8000, Руководство по эксплуатации, Страница: 72 / 192

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Stripe Hog Systems
fittings at the joints and reducing maintenance.
Helac cylinders are sensitive to air. Consequently,
special procedures must be used to bleed air from
the cylinders when hoses or other hog arm hy-
draulic equipment is serviced.
The hydraulic cylinders used to lift the debris
tank or raise the door are equipped with special
counterbalance valves that prevent the door or
tank from dropping suddenly if a hose ruptures
or a fitting fails.
All hydraulic systems and cylinders require special
procedures for bleeding air from the system after
servicing components or replacing hoses. Contact
Hog Technologies if you need assistance in bleed-
ing the air from the hydraulic system.
Hydraulic Hoses
The hydraulic system operates at pressures of
up to 3,000 psi (207 BAR). Therefore, it is criti-
cal that the operator and maintenance personnel
inspect the hydraulic hoses, fittings and other
components frequently. A visual inspection of the
entire hydraulic system should be conducted each
day before operating the unit. Any hose or com-
ponent that is questionable or shows any sign of
deterioration, wear or leakage should be replaced
immediately and before operating the unit. A more
thorough inspection of the pump and components
should be conducted at each routine service inter-
val. Remember that the hydraulic system can be
severely damaged if it runs low on fluid.
Protect the hoses from contact with sharp objects
or kinks. Never operate the hydraulic system with
a damaged hose or a hose that is questionable.
2.16 Hydrostatic Drive Pump & Motor
The Hydrostatic Drive pump is bolted to the OMSI
gearbox. It is activated whenever the truck is in
Operation Mode. A swash plate controlled by the
Forward/Reverse switch and the Truck Speed
dial in the joystick console directs fluid flow and
pressure output from the pump, setting the speed
and direction of the hydrostatic drive motor. The
hydrostatic drive system is a closed loop system
that is completely isolated from the waterblasting
hydraulic system.
Helac Hydraulic Cylinder On Hog Arm
2.17 Engine & Drivetrain
Overview
The truck chassis and all major components of the
waterblasting system are powered by the truck
engine. Power is transferred from the engine to
the drivetrain and waterblasting system through
the chassis transmission and the OMSI gearbox.
The OMSI gearbox provides two modes of opera-
tion that can be selected by the operator; Drive
Mode for transporting the machine on the highway
and Operate Mode which activates the hydrostatic
drive system that moves the truck at controlled
speeds of 0 to 7 mph for waterblasting operations
and makes all waterblasting functions available
for operation.
The engine and the chassis transmission were
specified and installed by the chassis manufac -
turer. Refer to the truck chassis operation manual
for additional information on the engine and trans-
mission.
Engine
The chassis engine powers the truck drivetrain
and all waterblasting systems and components.
Typically, the maximum engine speed at full load
during waterblasting operations is 1400 rpm.
The minimum is 1000 to 1150 rpm. Operating
the engine below the minimum required rpm will
place excess load on the engine, resulting in poor
efficiency and could cause it to overheat.