A work machine includes a chassis, a boom coupled to the chassis, and a work implement coupled to the boom and movable relative to the chassis. In system may further include dynamic payload weighing system configured to measure the payload weight on the work implement. The system may also include an electrohydraulic system controller in communication with the dynamic payload weighing system and an electrohydraulic control valve electrically coupled to the electrohydraulic system controller and moveable to a plurality of weight-specific valve positions based on the measured payload weight on the implement.

A bucket claw system and method of use wherein the bucket claw system comprises a bucket, either wedge shaped or flat bottomed, that is attached to a piece of heavy equipment such as a loader or skid-steer, wherein the bucket further comprises a plurality of teeth on the outside of the bucket, on the back portion of the bucket, in the area of the transition from the bottom portion of the bucket and the back portion. The bucket claw system can be used by rotating the front edge of the bucket up, exposing the plurality of teeth to the ground, and then moving the plurality of teeth along the ground in order to clear an area of scrap limbs, brush, vines, grass, roots, and undergrowth.

A work machine is capable of rotating an attachment while appropriately supporting a load applied to the attachment. The work machine has a hydraulic cylinder attached to a body side surface of an arm and a first link rod extending along a back side surface of the arm. A second link rod is rotatably supported via a first pin extending in the width direction of a front working device, and has one end projecting toward the back side surface of the arm and the other end projecting toward the body side surface thereof. One end of the first link rod is rotatably connected to the attachment. One end of the second link rod is rotatably connected to the other end of the first link rod, and the other end thereof is rotatably connected to a distal end of a cylinder rod of the hydraulic cylinder via a third pin.

A bucket can be configured to be used with excavating equipment. The bucket can include a bucket body. The bucket body can have a cutting edge with an actuator disposed adjacent to the cutting edge. A cutting tooth can be provided adjacent an end of the actuator, wherein the cutting tooth can be moveable by the actuator relative to the bucket body. The bucket body can include a void or hollow compartment in which motors, controllers, and other equipment can be housed that are configured to facilitate the selective movement of the cutting tooth.

A wear member attachment system for use with an excavation implement can include a connector that releasably secures a wear member to the excavation implement, the connector including an elongated housing and engagement members extendable and retractable relative to the housing. One engagement member can extend relative to the housing when another engagement member retracts relative to the housing, and vice versa. A method of releasably securing a wear member to an excavation implement can include rotating a engagement member of a connector from an extended position in which opposing slots in the engagement member are aligned with respective projections in the wear member, to a retracted position in which the slots are not aligned with the projections. The rotating step can include extending another engagement member of the connector as the first connector displaces from the extended position to the retracted position.

A bucket for an underground loading machine includes an opened bucket front and a concaved bucket back. To provide abrasive wear resistance, the bucket includes a paddle plate joined to the bucket underside of the bucket floor. The paddle plate can have a trumpet-shape tapering from flared forward edge to a plate tail disposed toward the concaved bucket back. The bucket may be configured as a wedge bottomed bucket and include a plurality of spacer wedges disposed between and spacing apart the bucket underside and the paddle plate.

Bucket mountable plow suitable for mounting on a front bucket of a loader vehicle may include a clamp assembly configured for mounting on the front bucket of the loader vehicle. A plow blade mount assembly may be carried by the clamp assembly. The plow blade mount assembly may have a fore-aft axis configured to be oriented along a direction of travel of the loader vehicle. A plow blade may be carried by the plow blade mount assembly. The plow blade may be disposed at a blade angle with respect to the fore-aft axis.

With a view to providing such an apparatus, the invention comprises a tooth adapter defining top and bottom walls and side walls, an adapter recess in one side, a retention means in the adapter recess, a bolt with a fastening inserted in the recess, a collar formed on the bolt of predetermined diameter, a tooth having side walls and defining a hollow chamber fitting over said adapter, a through tooth bolt opening formed in a tooth side wall of predetermined diameter, said tooth bolt opening being located to register with said adapter recess, when the tooth is positioned on the adapter.

In one version the diameter of the collar is slightly greater than the diameter of the tooth bolt opening, to create a locking effect.

A valve system, including first, second, third and fourth ports, a first flow path connecting the first and second ports, a second flow path connecting the third and fourth ports, with valves connected in the first and second flow paths, and energizable to block the same. A third flow path connects the first and second ports and a fourth flow path connects the third and fourth ports. The third and fourth flow paths are more restricted than the respective first and second flow paths. A fifth flow path connects the first and fourth ports and a sixth flow path connects the second and third ports. When the third and fourth flow paths are open, the first, second, fifth, and sixth flow paths are blocked. When the first and second flow paths are open, the third, fourth, fifth, and sixth flow paths are blocked. When the fifth and sixth flow paths are open, the first, second, third, and fourth, flow paths are blocked.

An attachment for an earth-working bucket having a pair of sidewalls and a digging edge with a plurality of forwardly extending teeth. The attachment has a pair of working plates and a pair of side plates each joined with both working plates and extending rearwardly therefrom. The pair of working plates converge together to a straight scraping edge and have inside surfaces together defining a teeth-receiving cavity. A method includes placing the attachment with the straight scraping edge forward of the teeth such that the teeth are in the teeth-receiving cavity, positioning each side plate against a surface of the respective sidewall of the bucket and securing each side plate to the respective sidewall of the bucket.