Abstract: An apparatus to couple the work tool to the arm assembly is disclosed. The arm assembly may have at least one arm. The work tool may have at least one recess. The apparatus may have at least one pin member adapted to engage with the at least one arm and the at least one recess. The at least one pin member may rotate in the at least one recess between a locked orientation and an unlocked orientation. The at least one pin member couples the work tool to the arm assembly in the locked orientation, and the work tool is separable from the arm assembly in the unlocked orientation.

Abstract: An apparatus to couple a work tool to an arm assembly is disclosed. The arm assembly may have a first arm and a second arm. The work tool may have a first recess and a second recess. The apparatus may have a first pin that may engage with the first arm and the first recess. The apparatus may have a second pin that may engage with the second arm and the second recess. The apparatus may have an actuator coupled to the first pin and second pin. The actuator may move between a retracted position and an extended position. The apparatus may have a locking sleeve mounted at least partially around the actuator. The locking sleeve may be moveable into a locked position to prevent the actuator from moving into the retracted position from the extended position.

Abstract: An apparatus to couple a work tool to an arm assembly is disclosed. The arm assembly may have at least one arm. The work tool may have at least one recess and at least one coupler. The apparatus may have at least one boss that may engage with the arm and the recess. The boss may move between an extended position and a retracted position. The boss may engage with the coupler to couple the work tool to the arm assembly in the extended position. The boss may disengage from the coupler to separate the work tool from the arm assembly.

Abstract: A method of decoupling a cylinder from a jaw in a demolition tool is disclosed. The jaw may have spaced apart first and second lugs. The method may include unlocking a first end of a pin from a first lug. The pin may have a groove adjacent the first end. The method may include rotating the first and second lugs in a first direction (A) from a first lug position to a second lug position wherein the pin slides through the first and second lugs and the first end moves from the first lug to the second lug to uncouple the cylinder from the jaw. The method may also include engaging a locking element biasingly supported on the second lug into the groove to retain the pin at the second lug. Further, the method may include moving the cylinder from between the spaced apart first and second lugs.

Abstract: A hydraulic cylinder cover is disclosed. The hydraulic cylinder cover may have a body having a first end and a second end. The hydraulic cylinder cover may also have a flange positioned at the first end. In addition, the hydraulic cylinder cover may have a cover eye provided on the flange. The cover eye may be configured to connect to a piston rod eye of a hydraulic cylinder.

Abstract: A replaceable tip for a demolition tool tip may include a first sidewall having a first contact side; a second sidewall having a second contact side; and a center wall connecting the first sidewall and the second sidewall. The center wall may have a third contact side provided with a recess, the recess may have first and second abutment surfaces, and the third contact side may have a third abutment surface adjacent the recess. A channel may be defined by the first, second and third contact sides, and the channel may be configured to receive an adapter of the demolition tool.

Abstract: A device to actuate a contamination cover on a machine bracket, the device comprising a master cylinder positioned on the machine bracket; a first slave cylinder positioned on the machine bracket and connected to the contamination cover; and a closed master-slave circuit connecting the master cylinder to the slave cylinder wherein the actuation of the master cylinder drives the slave cylinder for the transition of the contamination cover from a close to an open position.

Abstract: A lip shroud for a dragline lip is disclosed. The lip shroud may have a first sidewall. The first sidewall may have a first abutment surface including an opening. The lip shroud may have a second sidewall. The second side wall may have a second abutment surface. The second side wall may also have a securing portion configured for coupling to a lock assembly on the dragline lip. The lip shroud may have a centre wall having a third abutment surface. The centre wall may connect the first sidewall and the second sidewall. The first, second, and third abutment surfaces may define a channel configured to receive an edge portion of the dragline lip.

Abstract: A wing shroud for a dragline lip is described. The wing shroud may prevent wear on the dragline lip and may be configured to prevent decoupling therefrom during operations. The wing shroud may comprise a first sidewall having a first abutment surface; a second sidewall having a second abutment surface wherein the second sidewall has a securing portion configured for coupling to a lock device on the dragline lip; a centre wall having a third abutment surface provided with an opening, the centre wall connecting the first sidewall and the second sidewall wherein the first, second and third abutment surfaces define a channel to receive an upright portion of the dragline lip.

Abstract: A device to actuate a contamination cover on a machine bracket is disclosed. The device may include a first transition cylinder mounted on the machine bracket and connected to the contamination cover, a transition circuit connected to the first transition cylinder for transmission of hydraulic pressure to the first transition cylinder; and a transition sensor coupled to the transition circuit to control the transmission of hydraulic pressure to the first transition cylinder. The activation of the transition sensor may permit the transmission of hydraulic pressure to drive the first transition cylinder for transition of the contamination cover from a close to an open position.

Abstract: A gripping device for attachment to a machine is disclosed. The gripping device may have a mounting structure and a tool housing attached to the mounting structure. The tool housing may have at least one tool attachment portion. The gripping device may have a first tool portion pivotally supported on the at least one tool attachment portion at a first pivot point, and an actuation member disposed between the mounting structure and the first tool portion. Further, the gripping device may have a second tool portion pivotally supported on the first tool portion. The gripping device may also have a push rod disposed between the second tool portion and the at least one tool attachment portion. The push rod may be selectively locked at the first pivot point or second pivot point on the at least one tool attachment portion.

Abstract: A coupling arrangement for fluid coupling a work tool to a machine comprising a plurality of coupler assemblies slideably mounted in a plurality of corresponding cavities for coupling a machine fluid circuit and a work tool fluid circuit, the coupler assembles partitioning the cavities to form chambers; and a rail circuit connecting the chambers.

Abstract: A coupling arrangement for fluid coupling a worktool to a machine comprising at least one coupler assembly slideably mounted in a cavity for coupling a machine fluid circuit and a work tool fluid circuit, the coupler assembly partitioning the cavity to form a chamber; a diversion path connecting the machine fluid circuit to the chamber; and a check valve positioned in the diversion path for flow of fluid from the machine fluid circuit to the chamber to generate a force on the coupler assembly for maintaining the fluid coupling.

Abstract: A work tool assembly for a work machine is disclosed. The work tool assembly may have a lifting hook. The work tool assembly may also have a work tool apparatus. Further, the work tool assembly may have an engaging device configured to releasably engage the lifting hook with the work tool apparatus. In addition, the work tool apparatus may have a securing arrangement configured to secure the lifting hook to the work tool apparatus.

Abstract: A method of operating a dual acting hydraulic cylinder comprising the steps of returning a hydraulic fluid from a rod-side chamber to a piston-side chamber of the cylinder during a start phase of cylinder extraction with a speed component and increasing pressure of the fluid during end phase of cylinder extraction with a booster component and permitting the fluid to flow from the rod-side chamber to a reservoir. A hydraulic device for operating a dual acting hydraulic cylinder comprising a speed component arranged to return a hydraulic fluid from a rod-side chamber to a piston-side chamber of the cylinder at a start phase of cylinder extraction and a booster component arranged to increase the pressure of the fluid at an end phase of cylinder extraction.

Abstract: A cross-link assembly for a dangling worktool in the form of a grapple is disclosed. The cross-link assembly may be held in vertical alignment with the grapple when in a lock position to enable operational coupling of the grapple to an arm of a machine. The cross-link assembly may have a frame for connection to the grapple. The frame may have spaced apart arms to movably support a pin. The pin may have an abutment portion. A lock member may be movably engaged to the frame. The lock member may also be configured to engage with the abutment portion. The lock member may have a lock portion. The lock portion may be configured to engage with a lock element provided on the grapple.