A removable scraper device is described herein. The removable scraper device includes an attachment element and a socket defined by the attachment element, wherein the socket is configured to receive a post of a scraper element therein. The removable scraper device further includes a slot defined by the attachment element, wherein the slot is configured to receive a portion of a bucket of a wheeled-machine therein. The removable scraper device further includes an aperture defined by the attachment element and a bolt sized to be received within the aperture. In some embodiments of the removable scraper device, the bolt and aperture are configured to selectively press the attachment element against the bucket to removably secure the removable scraper device thereto.

A work machine includes: first working equipment with first working equipment parameter; second working equipment including a parallel link and being attachable to the first working equipment; a swing angle detector that detects swing angle information of the first working equipment; an attitude calculating unit that calculates an attitude of the first working equipment based on the detected swing angle information of the first working equipment; a working equipment parameter storage that stores the first working equipment parameter defined for a component of the first working equipment; a correction information acquiring unit that acquires information on the second working equipment as correction information; and a working equipment parameter correction unit that corrects the first working equipment parameter based on the correction information on the second working equipment acquired by the correction information acquiring unit.

Disclosed is a bucket for an earth-working or materials-handling machine having a top portion, a first and a second bucket side wall, a bucket floor extending from a front cutting edge up to the top portion, wherein the front cutting edge, the first and second side walls and the top portion form a bucket opening, seen from a front view of the bucket, the bucket floor has an inside facing towards the bucket opening and an outside facing away from the bucket opening, characterized in that the bucket floor has at least one floor section being attached to the bucket floor, optionally by at least one weld interface between the at least one floor section and the bucket floor provided in the proximity of the front cutting edge; and at least one protection element for protecting at least a part of the floor section, and/or at least a part of the optional at least one weld interface, which at least one protection element is mounted on the inside of the bucket floor in the proximity of the front cutting edge.

A damper for dampening rotation of a dipper door relative to a dipper body of a mining shovel includes a shaft, an arm, and a high pressure fluid seal. The shaft supported for rotation about a shaft axis, and rotation of the shaft is dampened by fluid in an enclosed chamber. The high pressure fluid seal engages an outer surface of the shaft at a position between the first end of the shaft and the second end of the shaft. The high pressure fluid seal engages an outer surface of the shaft and includes a low pressure side and a high pressure side adjacent a shaft cavity. The arm includes a first end coupled to the first end of the shaft, and a second end coupled to the dipper door or the dipper body such that rotation of the dipper door drives the arm to rotate the shaft.

A tilting bucket assembly comprises an adapter subassembly including a two coupler members defining a coupler distance, a base plate attached to the coupler members that defines a first recess, a torsion tube that defines a second recess, and a bucket subassembly that is pivotally connected to the adapter subassembly, the bucket subassembly including a spill guard including a stop portion configured to contact the adapter subassembly, and a tilting mechanism, wherein the first recess and second recess clear the tilting mechanism and the spill guard when the base plate contacts the stop portion of the spill guard.

A tilting bucket assembly comprises an adapter subassembly including a two coupler members defining a coupler distance, a base plate attached to the coupler members that defines a first recess, a torsion tube that defines a second recess, and a bucket subassembly that is pivotally connected to the adapter subassembly, the bucket subassembly including a spill guard including a stop portion configured to contact the adapter subassembly, and a tilting mechanism, wherein the first recess and second recess clear the tilting mechanism and the spill guard when the base plate contacts the stop portion of the spill guard.

Disclosed embodiments include backscreens, backscreen accessories for implements of power machines, and implements including the same. In the backscreens or backscreen accessories, a first backscreen portion is attached to a frame of the implement, for example by welding. The first backscreen portion includes at least one first portion interface feature. A second backscreen portion has at least one second portion interface feature. The at least one first portion interface feature and the at least one second portion interface feature are configured to engage one another to removably couple the second backscreen portion to the first backscreen portion.

An excavation attachment device includes a pair of elongated malleable members that are positioned between a rigid top plate and a rigid bottom plate. Each of the malleable members being constructed from rubber and include a forward edge that extends outward beyond the forward edges of the top and bottom plates. A gap is provided between the malleable members for receiving the forks of an excavator bucket. A mounting bracket is positioned along the back edge of the top plate and includes a first set of openings for receiving connectors to selectively engage the bottom wall of an excavator bucket. The mounting bracket also including a pair of protrusions along each end having a second set of openings for receiving connectors to selectively engage the side walls of the excavator bucket.

A hydraulic system is provided for a working machine, that includes a hydraulic cylinder for raising and lowering an implement The hydraulic system includes a sensor for measuring a pressure in the hydraulic cylinder; and a control unit for controlling the movement of the hydraulic cylinder; wherein the control unit is configured to compare a pressure value measured by the sensor with a preset target pressure level range and to control the pressure in the hydraulic cylinder to be within the preset target pressure level range by adding or draining hydraulic fluid to/from a pressure side of the hydraulic cylinder for maintaining a substantially constant ground contact force between the implement and the ground.

A payload management system embodiment may include a force sensing system operatively associated with a bucket of an excavator. The force sensing system senses a magnitude of a force required to hold the bucket at a defined position with respect to a reference datum. An angle sensing system operatively associated with the bucket senses a direction of the force with respect the reference datum. A processing system operatively associated with the force system and the angle sensing system processes data relating to the magnitude of the force and the direction of the force to determine the amount of the payload in the bucket.