A retrieval arrangement for a ripper of a machine includes a bollard that is disposed towards a rear portion of the machine. The bollard includes a base that is disposed along a mid-plane of the ripper and connected to the ripper via a ripper carriage. A method for retrieving the ripper includes positioning a sling around the bollard, and pulling the sling using another machine such that the bollard is biased in the direction away from the ripper carriage.

The invention concerns a trailer unit for use with a towing vehicle for transporting tracked constructional machines, such as excavators, said trailer unit including: a pair of wheeled carriages, respectively a left and a right wheeled carriages, adapted to be detachably connected to a pair of track frames, respectively a left and a right track frames, of a tracked constructional machine through first connecting means; a drawbar having a first end adapted to be detachably connected to a rear frame of the towing vehicle and a second end adapted to be detachably connected to a bottom frame of the tracked constructional machine through second connecting means.

A reconfigurable box blade includes a box frame that includes a left sidewall, a right sidewall, and a scraping blade that spans laterally between the left sidewall and the right sidewall. The reconfigurable box blade also includes a means for attaching the box frame to a vehicle. The reconfigurable box blade has a first configuration and a second configuration. The first configuration includes the scraping blade being in contact with a ground surface, and, a longest dimension of the box blade oriented substantially perpendicular to a longitudinal axis of the vehicle. The second configuration includes the scraping blade being out of contact with the ground surface and the longest dimension of the box frame being substantially aligned with the longitudinal axis of the vehicle.

There is provided a working vehicle capable of simplifying a structure and reducing manufacturing costs by realizing a configuration in which a tying-down attachment point doubles as a lifting attachment point. A working vehicle according to the present invention includes tying-down attachment points for locking a tightening member for preventing reversal at the time of transportation or parking in at least the front of a vehicle body, in which the tying-down attachment points are arranged at right-and-left two places on a front end surface of the vehicle body, capable of locking a lifting member for lifting the vehicle body upward and having strength in a vertical direction enough to withstand a load applied at the time of lifting the vehicle body upward after locking the lifting member, thereby doubling as lifting attachment points.

A monitoring and maintenance system that utilizes imperial and theoretical data to compare parts, vehicles, users, regions, wear intensity indexes over time and tracking information to provide a sophisticated data collection system for heavy-duty equipment or rental equipment. This tracking is designed to better the specifications, designs, training, preventative maintenance, and replacement wear understanding of fleet management.

The work vehicle includes an engine, a radiator; a hydraulic pump; a cooling fan that blows a cooling air to the radiator; a hydraulic motor which is driven by a pressure oil delivered from the hydraulic pump, and rotates the cooling fan; a directional control valve that switches a flow direction of the pressure oil from the hydraulic pump to rotate the hydraulic motor in forward and reverse directions; and a controller that controls the directional control valve so as to cause the repetitive operation of the forward and reverse rotation of the cooling fan to be performed at predetermined time intervals, in which the controller reduces the time intervals more than a normal time initially set when a relationship between the outside air temperature detected by the outside air temperature sensor and the refrigerant temperature detected by the refrigerant temperature sensor satisfies a predetermined condition.

A method of dewatering a tailings lagoon retained by a dam comprising: excavating an excavation hole in the tailings lagoon; allowing water from surrounding tailings to enter the excavation hole; and pumping water in the excavation hole out of the excavation hole and discharging beyond a toe of the dam. Also disclosed is a method comprising: excavating a channel in a tailings lagoon from a shore of the tailings lagoon and floating a pontoon in water in the channel from the shore along the channel,wherein: excavating involves breaking down solid tailings in the tailings lagoon into a slurry using water and removing the slurry using a submersible slurry pump mounted on the pontoon.

Provided is a construction machine equipped with a dozer and capable of holding the dozer in an upper position. The construction machine includes a dozer cylinder that brings the dozer into rotational movement, a first cylinder pin, a first connection member joined with an end of the first cylinder pin and defining a first through-hole, a second cylinder pin, a second connection member joined with an end of the second cylinder pin and defining a second through-hole, and a fixing member to be detachably connected to the first and second connection members to interconnect them and thereby fix the dozer in the upper position.

A plus-side main connection line (17) connects electrical equipment (11), (12) to a plus terminal (16A) of a battery (16). A plus-side isolating switch (18) is provided in the plus-side main connection line (17) to connect or disconnect the electrical equipment (11), (12) and or from the plus terminal (16A) of the battery (16). A plus-side auxiliary connection line (20) connects a communication terminal (15) to the plus terminal (16A) of the battery (16) in a position upstream of the plus-side isolating switch (18). A minus-side main connection line (22) connects a minus terminal (16B) of the battery (16) to ground. A minus-side isolating switch (23) is provided in the minus-side main connection line (22) to connect or disconnect the minus terminal (16B) of the battery (16) and or from the ground.

A tracked mobile radial stacker is provided that includes a conveyor having a rear end with a pivot pad, a 5.sup.th wheel connection, a hopper for receiving bulk material to be stacked, and a forward portion designed to discharge the bulk material to form a stack. Also included are a continuous track mounted to a frame, and a pair of pivotable wheels mounted to the frame, the pivotable wheels being pivotable between raised and lowered positions and being radially disposed when in the lowered position. An arm may be mounted between the frame and the forward portion of the conveyor, the arm having an underside. A bogey may be mounted to the underside of the arm, the bogey including a plurality of longitudinally-disposed bogey wheels. The pivotable wheels may raise the tracks off the ground when the pivotable wheels are in the radially-disposed, lowered position to facilitate radial shifting of the conveyor with the conveyor pivoting on the pivot pad to form an arc-shaped stack, and when the bogey is in its lowered position the continuous track may be elevated off the ground.