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Operator's Manual
Description Of The Machine
GTH-4013 EX GENERAL DESCRIPTION
The machine mainly consist 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 two-speed mechanical gear 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 gear 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 and to power the steering
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GTH-4013 SX - GTH-4017 SX - GTH-4013 EX - GTH-4017 EX
First Edition - Second Printing
system. The third gear type pump is flanged to
the engine distribution lateral PTO and powers the
service brakes system, the front stabilizers and the
chassis leveling 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 fiberglass
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
battery disconnection device, the fuel and the engine
oil filters and the engine exhaust muffler.
The engine exhaust duct is then routed from the
bottom of 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 and
are designed in such a way the extension of the
bigger one (moving the intermediate boom section)
produces the same extension of the smaller one
(moving the inner boom section).
Part No. 57.0009.0540
Courtesy of Crane.Market
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