Abstract: A work vehicle comprising a frame supported by a ground engaging device. A boom assembly is coupled to the frame. An attachment coupler is coupled to the boom assembly. An electronic data processor is communicatively coupled to a boom actuator, an attachment coupler actuator, a boom sensor, an attachment coupler sensor, and an operator input device. A computer readable storage medium comprising machine readable instructions that, when executed by the processor, cause the processor to receive an operator input and for a tilt forward command, command the boom actuator to move the boom assembly to a frame contact position and then command the attachment coupler actuator to move the attachment coupler towards a lower position. For a tilt rearward command, command the attachment coupler actuator to move the attachment coupler towards an upper position and then command the boom actuator to move the boom assembly towards a raised position.

Abstract: An excavator comprises a frame, a boom assembly and a control architecture. The control architecture may include a first actuator, a second actuator, a third actuator, a user input interface, a storage medium having a control algorithm, and a controller configured to execute the control algorithm to: receive a target grade request from one or more of the user input interface and a storage medium; receive a dipper stick position relative to the pivot axis; receive a direction of movement of the dipper stick; determine whether the dipper stick position is outside the pivot axis or inside the pivot axis; and operate the first actuator in automatic mode to automatically adjust the pivot axis height relative to the frame when the dipper stick position and the direction of movement of the dipper stick are within the automatic control region for automatically maintaining a target grade.

Abstract: A work vehicle comprising a frame supported by a ground engaging device. A boom assembly is coupled to the frame. An attachment coupler is coupled to the boom assembly. An electronic data processor is communicatively coupled to a boom actuator, an attachment coupler actuator, a boom sensor, an attachment coupler sensor, and an operator input device. A computer readable storage medium comprising machine readable instructions that, when executed by the processor, cause the processor to receive an operator input and for a tilt forward command, command the boom actuator to move the boom assembly to a frame contact position and then command the attachment coupler actuator to move the attachment coupler towards a lower position. For a tilt rearward command, command the attachment coupler actuator to move the attachment coupler towards an upper position and then command the boom actuator to move the boom assembly towards a raised position.