Abstract: A radial differential speed control system includes a steering angle sensor for a steerable rear wheel, a pedal sensor for sensing an operator input for a desired ground speed at a reference point adjacent an operator seat, and an electronic controller that uses the desired ground speed to calculate differential speeds of a left front drive wheel and a right front drive wheel to reduce the ground speed of a grass mowing machine when the steering angle sensor indicates the steerable rear wheel is turning.

Abstract: A lift linkage assembly for a work machine having a work tool. The lift linkage assembly includes a frame, a boom arm, an upper link, a lower link, and a hydraulic actuator. The boom arm is configured to be pivotally coupled to the work tool and has a surface that defines a longitudinal axis. The upper link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The lower link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The hydraulic actuator has a rod that is pivotally coupled to the boom arm and moves between a retracted position and an extended position. The upper link, lower link, and hydraulic actuator are each spaced from the longitudinal axis.

Abstract: A work vehicle may include a chassis, linkage, and locking pin. The linkage may include an upper link pivotally connected to the chassis, lower link pivotally connected to the chassis, and boom. The boom may include an upper arm pivotally connected to the upper link, lower arm pivotally connected to the lower link, front arm pivotally connected to a work tool assembly, and locking tab affixed to one of the front arm and the lower arm and protruding from one of the front arm and the lower arm in a direction away from the work tool assembly. The locking pin may be connected to the chassis and extend laterally relative to the chassis from a retracted position outside a travel path of the locking tab to an extended position intersecting the travel path of the locking tab.

Abstract: A work tool coupler for a work vehicle may include a rigid body, a retention pin, a four-bar linkage, and a lever. The retention pin may be configured to engage a work tool when the coupler is in an engaged position. The four-bar linkage may include a first member pivotally connected to the retention pin and at least one of a second member and a third member, the second member pivotally connected to at least one of the first member and the third member, the third member pivotally connected to at least one of the first member and the second member and a fourth member, and the fourth member pivotally connected to the third member. The lever may be attached to the fourth member.

Abstract: A work vehicle may include a chassis, linkage, and locking pin. The linkage may include an upper link pivotally connected to the chassis, lower link pivotally connected to the chassis, and boom. The boom may include an upper arm pivotally connected to the upper link, lower arm pivotally connected to the lower link, front arm pivotally connected to a work tool assembly, and locking tab affixed to one of the front arm and the lower arm and protruding from one of the front arm and the lower arm in a direction away from the work tool assembly. The locking pin may be connected to the chassis and extend laterally relative to the chassis from a retracted position outside a travel path of the locking tab to an extended position intersecting the travel path of the locking tab.

Abstract: A work tool coupler for a work vehicle may include a rigid body, a retention pin, a four-bar linkage, and a lever. The retention pin may be configured to engage a work tool when the coupler is in an engaged position. The four-bar linkage may include a first member pivotally connected to the retention pin and at least one of a second member and a third member, the second member pivotally connected to at least one of the first member and the third member, the third member pivotally connected to at least one of the first member and the second member and a fourth member, and the fourth member pivotally connected to the third member. The lever may be attached to the fourth member.

Abstract: A lift linkage assembly for a work machine having a work tool. The lift linkage assembly includes a frame, a boom arm, an upper link, a lower link, and a hydraulic actuator. The boom arm is configured to be pivotally coupled to the work tool and has a surface that defines a longitudinal axis. The upper link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The lower link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The hydraulic actuator has a rod that is pivotally coupled to the boom arm and moves between a retracted position and an extended position. The upper link, lower link, and hydraulic actuator are each spaced from the longitudinal axis.

Abstract: A lift linkage assembly for a work machine having a work tool. The lift linkage assembly includes a frame, a boom arm, an upper link, a lower link, and a hydraulic actuator. The boom arm is configured to be pivotally coupled to the work tool and has a surface that defines a longitudinal axis. The upper link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The lower link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The hydraulic actuator has a rod that is pivotally coupled to the boom arm and moves between a retracted position and an extended position. The upper link, lower link, and hydraulic actuator are each spaced from the longitudinal axis.

Abstract: The present disclosure provides a lift linkage assembly for a work machine having a work tool. The lift linkage assembly includes a frame, a boom arm, an upper link, a lower link, and a hydraulic actuator. The boom arm is configured to be pivotally coupled to the work tool and has a surface that defines a longitudinal axis. The upper link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The lower link has a first end pivotally coupled to the frame and a second end pivotally coupled to the boom arm. The hydraulic actuator has a rod that is pivotally coupled to the boom arm and moves between a retracted position and an extended position. The upper link, lower link, and hydraulic actuator are each spaced from the longitudinal axis.