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.

A hydro excavation heating system includes an internal combustion engine having an exhaust gas stream, a heat exchanger coupled to the exhaust gas stream and configured to heat hydro excavation water by transferring heat from the exhaust gas stream to the hydro excavation water circulating therethrough, and a tank for storing the hydro excavation water. The system also includes a water pump having an inlet coupled to an outlet of the tank storing the hydro excavation water, a hydro excavation hose coupled to an outlet of the water pump, and a coupling coupled to the hydro excavation hose and to an inlet of the heat exchanger to define a closed circulation path through the system when heating the hydro excavation water, where the coupling is configured to disconnect from the heat exchanger in order to use the hydro excavation water during a hydro excavation operation.

The present invention relates to a container for transport and storage of excavator attachments. In particular, but not exclusively, the present invention relates to a container for securing excavator attachments on a trailer. A container for retaining an excavator attachment on a trailer comprises a lower portion including a base, a pair of opposing end walls, and a front wall; a lid connected to the lower portion and arranged to pivot between a first position, in which the container may receive an excavator attachment, and a second position, in which the excavator attachment is retained by the container; and a coupling configured to secure the container to a trailer such that the end walls of the lower portion are adjacent side walls of the trailer and the front wall of the lower portion is adjacent a front wall of the trailer, wherein a depth of the lid, in a direction perpendicular to the base of the container, is greater than a depth of the lower portion.

A grader for a roadway surface includes a material hopper having a hopper inlet, and a hopper outlet. The hopper outlet is configured to flow material from the hopper onto the roadway surface. A grader blade is located rearward of the hopper outlet relative to a travel direction of the grader along the roadway surface. The grader blade has a lowermost blade surface such that a blade height from the lowermost blade surface to the roadway surface is selectable changeable to provide a selected thickness and/or distribution of the material on the roadway surface.

Shaker assemblies for dewatering slurries are disclosed. The shaker assemblies may include a positioning device which limits movement of the vibratory frame of the shaker assembly relative to a subframe when the vibratory frame is moved from a raised operating position to a lowered position. The positioning device may guide the vibratory frame as it is lowered from the raised position to the lowered position. In some embodiments, the shaker assembly includes a locking device for locking the vibratory frame to the subframe when the vibratory frame is in the lowered position.

Shaker assemblies for dewatering slurries are disclosed. The shaker assemblies may include a positioning device which limits movement of the vibratory frame of the shaker assembly relative to a subframe when the vibratory frame is moved from a raised operating position to a lowered position. The positioning device may guide the vibratory frame as it is lowered from the raised position to the lowered position. In some embodiments, the shaker assembly includes a locking device for locking the vibratory frame to the subframe when the vibratory frame is in the lowered position.

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 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.

A hydraulic excavator (1) includes a wireless authentication device (52) performing wireless authentication with a portable key device (51) and a vehicle body controller (48) for starting an engine (15) based on authentication by the wireless authentication device (52) and an operation of a start switch (12). The wireless authentication device (52) transmits a request signal within an authenticable range and performs authentication when it receives an ID code for authentication replied from the portable key device (51) based on the transmitted request signal. The vehicle body controller (48) prohibits driving of a hydraulic actuator (5E, 5F, 5G, 5H, 2E, 2F, 3A) when the portable key device (51) is outside of the authenticable range even if a gate lock lever (13) has been switched to an unlock position.

A hitch assembly to hoist a machine having at least one wheel rim includes a mounting flange configured to be disposed on an outer face of the wheel rim; and a hitch protruding from the mounting flange and extending longitudinally away from the outer face of the wheel rim. The hitch assembly further includes an elongated receiver component selectively coupled to the hitch, the receiver component having a first end adapted to releasably engage with the hitch; and a hook element rotatably coupled to a second end of the receiver component, the hook element being configured to rotate about the receiver component.