A drive system for a net cleaner to produce efficient propulsion without damage to the cage net. The drive system includes flexible engagement stumps protruding from a base of a driving belt with tips or studs mounted on an end of the stumps. The tips or studs engage the net and propel the net cleaner. The stumps flex to insure that. if excessive pressure is applied to a stud, the stump will bend and the net will release without damage. A guard prevents the stump from directly engaging a cage net. A track belt produces efficient propulsion without damage to the cage net. The track belt includes flexible engagement stumps protruding from a base of a driving belt with tips or studs mounted on an end of the stumps.

A drive system for a net cleaner to produce efficient propulsion without damage to the cage net. The drive system includes flexible engagement stumps protruding from a base of a driving belt with tips or studs mounted on an end of the stumps. The tips or studs engage the net and propel the net cleaner. The stumps flex to insure that. if excessive pressure is applied to a stud, the stump will bend and the net will release without damage. A guard prevents the stump from directly engaging a cage net. A track belt produces efficient propulsion without damage to the cage net. The track belt includes flexible engagement stumps protruding from a base of a driving belt with tips or studs mounted on an end of the stumps.

A tracked vehicle comprising a first and a second track, a mechanical power generator assembly; an assembly of operating devices coupled to the generator assembly; a first and a second drive wheel coupled respectively to the first and to the second track, and to the generator assembly; a user interface to receive inputs from an operator; and a control unit coupled to the user interface to receive inputs; the control unit being coupled to the mechanical power generator assembly and being configured to enable or disable starting of the mechanical power generator assembly.

A tracked vehicle comprising a first and a second track, a mechanical power generator assembly; an assembly of operating devices coupled to the generator assembly; a first and a second drive wheel coupled respectively to the first and to the second track, and to the generator assembly; a user interface to receive inputs from an operator; and a control unit coupled to the user interface to receive inputs; the control unit being coupled to the mechanical power generator assembly and being configured to enable or disable starting of the mechanical power generator assembly.

This disclosure provides systems and methods for in situ gap inspection in a machine, such as a generator, an electric motor, or a turbomachine. A robotic crawler includes an expandable body, multidirectional traction modules, and sensor modules. The expandable body is movable between a collapsed state and an expanded state. The multidirectional traction modules are removably connected to and positioned by the expandable body and configured to engage opposed surfaces within an annular gap of the machine. The sensor modules are removably connected to and supported by the expandable body and include a plurality of sensor types to inspect the annular gap of the machine.

This disclosure provides systems and methods for in situ gap inspection in a machine, such as a generator, an electric motor, or a turbomachine. A robotic crawler includes an expandable body, multidirectional traction modules, and sensor modules. The expandable body is movable between a collapsed state and an expanded state. The multidirectional traction modules are removably connected to and positioned by the expandable body and configured to engage opposed surfaces within an annular gap of the machine. The sensor modules are removably connected to and supported by the expandable body and include a plurality of sensor types to inspect the annular gap of the machine.

A supporting and levelling group for aerial work platforms includes a support base for supporting a containing cage of an aerial work platform and a support frame hinged to the support base so as to be able to oscillate with respect to an oscillation axis. The supporting and levelling group also includes at least a pair of ground rest elements hinged independently to the support frame, with respect to respective articulation axes parallel to one another and substantially perpendicular to the oscillation axis, such as to be able to independently vary a height thereof with respect to the support base.

A bumper assembly includes a bumper that has a body and a mounting feature. In addition, a recess extends substantially through at least a portion of the body and the recess is configured to receive a mounting end of an element. In addition, the mounting feature is configured to rotatably couple the element to the body at the mounting end while the mounting end is disposed within the recess.

A snow groomer having a frame; an attachment connected movably to the frame; a hydraulic assembly having an actuator configured to position the attachment, and a valve configured to control the actuator; a variable-flow pump configured to supply the hydraulic assembly; and a control system configured to calculate the total flow rate demand of the hydraulic assembly, and configured to control the variable-flow pump as a function of the total flow rate demand, so delivery by the variable-flow pump equals the total flow rate demand.

A snow groomer having a frame; an attachment connected movably to the frame; a hydraulic assembly having an actuator configured to position the attachment, and a valve configured to control the actuator; a variable-flow pump configured to supply the hydraulic assembly; and a control system configured to calculate the total flow rate demand of the hydraulic assembly, and configured to control the variable-flow pump as a function of the total flow rate demand, so delivery by the variable-flow pump equals the total flow rate demand.