A construction machine includes an earth removing implement 20 including: a blade 22 disposed on a base portion frame 21 by using a linkage mechanism 23 and a cylinder 24; a fixed cover 26 positioned above the linkage mechanism 23; a movable cover 27 covering a gap between the fixed cover 26 and the blade 22; and a guide pin 25 that guides the movable cover 27 while the blade 22 is being raised. The movable cover 27 includes a side surface portion 52 having a slot 54 with which the guide pin 25 engages. The slot 54 is formed along the side surface portion 52 that faces the guide pin 25. The guide pin 25 engages with the slot 54 at a lower end position therein when the blade 22 is raised to a highest position as the movable cover 27 is rotated to follow the fixed cover 26.

A counterweight assembly for a work machine includes a structure, support studs, a first side wall, and a second side wall. The structure is coupled to a frame of the work machine and defines through holes, a first side end, and a second side end. The support studs are coupled to the frame and correspondingly received into the through holes to support the structure against the frame. The first side wall extends from the first side end and defines a first eyelet. The second side wall extends from the second side end and defines a second eyelet. A work machine guard rail is received between the first side wall and second side wall. One or more of the first eyelet and the second eyelet receive a lifting assembly for lifting the work machine, and the support studs transfer a lifting force from the counterweight assembly to the frame.

An example work machine control system may include cost factor logic to obtain a cost factor for a resource, cost variable logic to obtain a consumption signal from a consumption sensor indicative of consumption of the resource, fill measurement logic configured to receive a fill signal from a fill sensor, the fill signal indicative of a fill state of a container of an earth-moving work machine, fill target logic to determine a target fill level for the container based on the cost factor, the consumption signal and the fill signal and control logic to generate a machine control signal based on the target fill level.

An earthmoving machine comprises an implement. The implement defines a variable implement angle θ.sub.Bucket(t) indicative of a current position of the implement relative to horizontal as a function of time t. The implement comprises teeth extending a tooth height h and defining an active raking ratio r. Controllers are programmed to execute an implement teeth grading offset determination process that comprises determining a variable implement offset angle θ.sub.Delta(t) at least partially based on a difference between an original target design angle θ.sub.Tgt(t) and the variable implement angle θ.sub.Bucket(t), determining an implement offset IO based on h, r, and θ.sub.Delta(t), and determining a new target design elevation Elv.sub.Tgt,New(t) based on IO and an original target design elevation Elv.sub.Tgt,Orig(t).

An example work machine control system may include cost factor logic to obtain a cost factor for a resource, cost variable logic to obtain a consumption signal from a consumption sensor indicative of consumption of the resource, fill measurement logic configured to receive a fill signal from a fill sensor, the fill signal indicative of a fill state of a container of an earth-moving work machine, fill target logic to determine a target fill level for the container based on the cost factor, the consumption signal and the fill signal and control logic to generate a machine control signal based on the target fill level.

An earthmoving machine comprises an implement. The implement defines a variable implement angle .sub.Bucket(t) indicative of a current position of the implement relative to horizontal as a function of time t. The implement comprises teeth extending a tooth height h and defining an active raking ratio r. Controllers are programmed to execute an implement teeth grading offset determination process that comprises determining a variable implement offset angle .sub.Delta(t) at least partially based on a difference between an original target design angle .sub.Tgt(t) and the variable implement angle .sub.Bucket(t), determining an implement offset IO based on h, r, and .sub.Delta(t), and determining a new target design elevation Elv.sub.Tgt,New(t) based on IO and an original target design elevation Elv.sub.Tgt,Orig(t).

A counterweight assembly for a work machine includes a structure, support studs, a first side wall, and a second side wall. The structure is coupled to a frame of the work machine and defines through holes, a first side end, and a second side end. The support studs are coupled to the frame and correspondingly received into the through holes to support the structure against the frame. The first side wall extends from the first side end and defines a first eyelet. The second side wall extends from the second side end and defines a second eyelet. A work machine guard rail is received between the first side wall and second side wall. One or more of the first eyelet and the second eyelet receive a lifting assembly for lifting the work machine, and the support studs transfer a lifting force from the counterweight assembly to the frame.

An excavator comprises a machine chassis, boom, stick, and implement. The boom, stick, and implement collectively define a variable implement angle .sub.Bucket(t) indicative of a current position of the implement relative to horizontal as a function of time t. The implement comprises teeth extending a tooth height h from an internal leading edge J.sub.I to an external leading edge J.sub.E. The teeth are spaced along J.sub.I and define an active raking ratio r. Controllers are programmed to execute an implement teeth grading offset determination process that comprises determining a variable implement offset angle .sub.Delta(t) at least partially based on a difference between an original target design angle .sub.Tgt(t) and the variable implement angle .sub.Bucket(t), determining an implement offset IO based on h, r, and .sub.Delta(t), and determining a new target design elevation Elv.sub.Tgt,New(t) based on IO and an original target design elevation Elv.sub.Tgt,Orig(t).

An excavator comprises a machine chassis, boom, stick, and implement. The boom, stick, and implement collectively define a variable implement angle .sub.Bucket(t) indicative of a current position of the implement relative to horizontal as a function of time t. The implement comprises teeth extending a tooth height h from an internal leading edge J.sub.I to an external leading edge J.sub.E. The teeth are spaced along J.sub.I and define an active raking ratio r. Controllers are programmed to execute an implement teeth grading offset determination process that comprises determining a variable implement offset angle .sub.Delta(t) at least partially based on a difference between an original target design angle .sub.Tgt(t) and the variable implement angle .sub.Bucket(t), determining an implement offset IO based on h, r, and .sub.Delta(t), and determining a new target design elevation Elv.sub.Tgt,New(t) based on IO and an original target design elevation Elv.sub.Tgt,Orig(t).

A construction machine includes an earth removing implement 20 including: a blade 22 disposed on a base portion frame 21 by using a linkage mechanism 23 and a cylinder 24; a fixed cover 26 positioned above the linkage mechanism 23; a movable cover 27 covering a gap between the fixed cover 26 and the blade 22; and a guide pin 25 that guides the movable cover 27 while the blade 22 is being raised. The movable cover 27 includes a side surface portion 52 having a slot 54 with which the guide pin 25 engages. The slot 54 is formed along the side surface portion 52 that faces the guide pin 25. The guide pin 25 engages with the slot 54 at a lower end position therein when the blade 22 is raised to a highest position as the movable cover 27 is rotated to follow the fixed cover 26.