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Operator's Manual
Description Of The Machine
GTH-4013 SX GENERAL DESCRIPTION
The machine mainly consists of a mobile carriage,
equipped with an operator's cabin and a telescopic
boom with a load handling attachment articulation
capable to handle and carry payloads not exceeding
the rated capacity of the machine.
The mechanical power necessary to move the
machine and to operate the load handling mechanism
is provided by a diesel engine installed on the right
side of the machine and controlled by a mechanical
pedal located inside the operator's cabin.
The diesel fuel feeding the engine is contained in
a steel tank located on the left side of the chassis,
immediately behind the operator's cabin. The engine
powers three hydraulic pumps.
The bigger one, which is a piston type variable
displacement pump, is directly flanged to the engine
flywheel housing and is hydraulically linked to a
piston type variable displacement hydraulic motor,
which generates the torque necessary for the
machine translation.
These two units are the main components of the
hydrostatic transmission which is mechanically
linked to the machine axles and wheels. In particular,
the hydraulic motor is flanged to a mechanical drop
box installed on a central structural beam linking the
two sides of the chassis.
The mechanical torque generated by the hydrostatic
motor and passing through the drop box, is
transmitted to the front and rear axles by two drive
shafts located on the machine centerline so providing
a 4X4 wheels drive capability.
Both the hydrostatic pump and motor are hydraulically
controlled and automatically adjust their functioning
parameters against the engine rpm and the power
requested by the pumps.
The four wheels are equipped with tires suitable to
operate the machine in all the working conditions
which have been foreseen for this model and
capable to withstand the maximum loads generated
by the machine weight and payloads.
The second gear type pump, flanged on the back
of the bigger one and mechanically linked to that
by a passing through PTO, produces the flow and
pressure to move the telescopic boom and the load
handling attachment articulation, to operate the front
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GTH-4013 SX - GTH-4017 SX - GTH-4013 EX - GTH-4017 EX
First Edition - Second Printing
stabilizers and the chassis leveling system and to
power the steering system.
The third gear type pump is flanged to the engine
distribution lateral PTO and powers the service
brakes system.
These three pumps are fed through oil suction lines
which are linked to the hydraulic oil tank installed on
the bottom center of the chassis.
This oil tank, steel made, is provided also with the
oil filter package (return type), the oil level gauges
and the oil charging cap.
The engine and the three pumps are installed inside
a suitable engine compartment consisting of a fixed
lower bay made in steel and of a upper bonnet which
can be opened to allow servicing activities in the
engine compartment.
The engine compartment also includes the engine
and hydraulic system cooler, provided with an
internal coolant expansion tank, the air intake duct
and filter, the electrical alternator, the battery, the
fuel and the engine oil filters and the engine exhaust
muffler.
The engine exhaust duct is then routed from the
bottom f the engine compartment to the lateral
back side of the chassis with a geometry capable
to eject the engine exhaust gas up and back from
the machine.
The telescopic boom, hinged on the back of the
chassis, mainly consists in three steel tubes
having rectangular sections and provided with a
load handling attachment articulation for payload
stuffing/unstuffing and transportation purposes. The
outer section is hinged in the back top area of the
chassis and moved by an hydraulic cylinder linked
between its bottom surface and the central bottom
area of the chassis.
The extension/retraction of this cylinder produces
the boom outer section to rotate between the boom
up and down limits.
The boom intermediate section can telescope with
respect the outer one by a boom extension cylinder
which is installed on the top of the boom. The inner
section is moved by anther telescope cylinder
internally installed.
These two cylinders are hydraulically linked in series
Part No. 57.0009.0540
Courtesy of Crane.Market
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