Abstract: A double cut control system and method are disclosed for a felling head having a saw disc. The felling head may be positioned by a knuckle boom, which includes a hoist boom and a stick boom coupled by a knuckle and positioned by hydraulic cylinders actuated by a hydraulic pump and hydraulic control valves. The control system has an operator input device for input of operator commands including a double cut control input command. Position sensors provide position values for the knuckle boom and the felling head. At least one controller receives the operator commands and position values. After receiving the double cut control input command, the controller generates a first cut control signal to direct flow of hydraulic fluid to the hydraulic cylinders to position the knuckle boom to advance the felling head in a single fore-aft direction a set distance corresponding to a partial depth cut.

Abstract: A double cut control system and method are disclosed for a felling head having a saw disc. The felling head may be positioned by a knuckle boom, which includes a hoist boom and a stick boom coupled by a knuckle and positioned by hydraulic cylinders actuated by a hydraulic pump and hydraulic control valves. The control system has an operator input device for input of operator commands including a double cut control input command. Position sensors provide position values for the knuckle boom and the felling head. At least one controller receives the operator commands and position values. After receiving the double cut control input command, the controller generates a first cut control signal to direct flow of hydraulic fluid to the hydraulic cylinders to position the knuckle boom to advance the felling head in a single fore-aft direction a set distance corresponding to a partial depth cut.

Abstract: A boom apparatus comprises at least one flexible line and a boom. The boom comprises a nose body. The nose body comprises a passageway through which the at least one flexible line is routed.

Abstract: A boom apparatus comprises a boom structure, at least one flexible line, a fluid cylinder, and a barrier. The boom structure comprises a first boom and a second boom attached pivotally to the first boom. The at least one flexible line extends along the boom apparatus. The fluid cylinder is attached pivotally to the first boom and the second boom. The fluid cylinder comprises an end portion pinned to the second boom. The barrier is positioned between the end portion and the second boom. The at least one flexible line is routed externally of the second boom through a passageway positioned between the barrier and the second boom such that the barrier spaces the at least one flexible line apart from the end portion.

Abstract: A boom apparatus comprises at least one flexible line and a boom. The boom comprises a nose body. The nose body comprises a passageway through which the at least one flexible line is routed.

Abstract: A boom apparatus comprises a boom structure, at least one flexible line, a fluid cylinder, and a barrier. The boom structure comprises a first boom and a second boom attached pivotally to the first boom. The at least one flexible line extends along the boom apparatus. The fluid cylinder is attached pivotally to the first boom and the second boom. The fluid cylinder comprises an end portion pinned to the second boom. The barrier is positioned between the end portion and the second boom. The at least one flexible line is routed externally of the second boom through a passageway positioned between the barrier and the second boom such that the barrier spaces the at least one flexible line apart from the end portion.

Abstract: An apparatus for lubrication of a hinge on a work machine. The hinge includes a first member such as a first boom arm and a second member such as a second boom arm. The hinge further includes a pin hingedly linking the first and second members. The pin has a path therein having a first portion that extends axially. The hinge further includes a port in fluid communication with the path. The port is radially offset by a fixed distance and fixed orientation from the first portion within the pin.

Abstract: The present disclosure provides an apparatus for lubrication of a hinge on a work machine. The hinge includes a first member such as a first boom arm and a second member such as a second boom arm. The hinge further includes a pin hingedly linking the first and second members. The pin has a path therein having a first portion that extends axially. The hinge further includes a port in fluid communication with the path. The port is radially offset by a fixed distance and fixed orientation from the first portion within the pin.