Systems and methods to provide pressed aggregate-filled cavities for improving ground stiffness and uniformity are disclosed. According to an aspect, a method includes using a mechanism to press into a ground surface in a substantially downward direction to create a concavity. The method also includes substantially or completely filling the concavity with unstabilized or chemically stabilized aggregate, soil, or sand. Further, the method includes using the mechanism to press the aggregate within the concavity to achieve a desired ground stiffness.

A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a boom attached to the upper turning body, an arm attached to the boom, an end attachment attached to the arm, a sensor configured to output detection information about an orientation of a work part of the end attachment, and a processor configured to control operation of the work part to cause the work part to perform compaction of ground by pressing the work part against the ground, wherein the processor is configured to control an operation of the arm and the end attachment according to a lowering operation of the boom to cause an end portion of the work part to perform the compaction of the ground on the basis of the detection information of the sensor.

A hydraulic control for an attachment on a work vehicle. The attachment is mounted on the chassis of the work vehicle and movable between a first position and a second position. A hydraulic cylinder is operable to power movement of the attachment. A fluid circuit communicates with the hydraulic cylinder and is configured to carry hydraulic fluid. A fluid reservoir is in communication with the fluid circuit. Accumulators that are in communication with the fluid circuit automatically store and release hydraulic fluid in response to movement of the attachment. A valve assembly controls fluid communication between the fluid reservoir and the fluid circuit in response to movement of the attachment to its second position.

A compaction wheel assembly includes a shaft, a plurality of compaction wheels along the shaft, and at least one bushing assembly. The bushing assembly includes first and second split bushings axially spaced-apart to form a space therebetween, the upper and lower bushing housings removably secured together with the first and second split bushings therebetween to clamp the first and second split bushings about the shaft, and at least one first shim located between the bushing housings at a front side of the shaft and at least one second shim located between the bushing housings at a rear side of the shaft to space the upper and lower bushing housings and upper and lower halves of the first and second split bushings. At least one of the first and second shims includes a slot configured for feeding grease to the space between the first and second split bushings.

A work machine can comprise a work tool attached to an end of a boom of the work machine, and processing circuitry. The processing circuitry can be configured to determine a type of the work tool; set a focus point of the work tool based on the type of the work tool; measure a posture of the work tool based on the focus point; and provide a guidance function to an operator of the work machine in accordance with the measured posture of the work tool based on the focus point.

The present invention relates to a grading assembly, a grader vehicle and method for maintaining a dirt or gravel road. The grader assembly is adapted for use with a water truck or truck having water dispersal means to shape and maintain a camber or a crown of a dirt or gravel road. The assembly includes a grading device carried by the truck for shaping and maintaining the camber or the crown of the dirt or gravel road.

An excavator machine with a side mounted silt fence installing tool mounted below the swivel. The excavator has a swiveling and articulating tool and an operator's seat above the swivel. An articulating arm is attached above the swivel so the operator may operate swiveling and articulating tool in a coordinated way with the silt fence installer to accomplish a job more efficiently than it could be accomplished using tools separately mounted one at a time.

A roll compactor attachment for a loader has a first arm having a first end portion configured for connecting to a boom assembly of the loader; a second arm having a first end portion pivotally connected to a second end portion of the first arm; a third arm having a first end portion pivotally connected to a second end portion of the second arm; a roller rotationally connected to a second end portion of the third arm; a roller actuator operatively connected to the roller for turning the roller; and a stopper connected to one of the first and second arms. The stopper selectively abuts another one of the first and second arms to limit a minimum angle between the first and second arms. A roll compactor attachment having a lock selectively locking the first arm to the third arm is also disclosed.

A vibratory compactor is provided. The vibratory compactor may include a frame coupled to a compactor plate. The frame and compactor plate are configured to vibrate to compact soil. The vibratory compactor may also include a housing having an inner volume, the housing coupled to the frame by at least one isolator with the frame and the at least one load bearing member located within the inner volume. The housing may be coupled to an arm of an excavator. A gap may be formed between the housing and the frame, wherein the gap between the housing and the frame inhibits movement of the housing with respect to the frame through the housing contacting the frame when excess forces are applied to the housing in an up/down direction, a forward/backward direction, a side-to-side direction, or combinations thereof.

A vibratory compactor is provided. The vibratory compactor may include a frame coupled to a compactor plate. The frame and compactor plate are configured to vibrate to compact soil. The vibratory compactor may also include a housing having an inner volume, the housing coupled to the frame by at least one isolator with the frame and the at least one load bearing member located within the inner volume. The housing may be coupled to an arm of an excavator. A gap may be formed between the housing and the frame, wherein the gap between the housing and the frame inhibits movement of the housing with respect to the frame through the housing contacting the frame when excess forces are applied to the housing in an up/down direction, a forward/backward direction, a side-to-side direction, or combinations thereof.