Design of this MOC was made by yannmar. I found it on rebrickable.com and I was excited about the compact model and the innovative design of the gear train. And the excavator fits perfectly on the trailer of my tieflader.
Thanks to yannmar for this great construction!
I just changed the color from yellow to red, added some wheels to guide the chains and created building instructions with LPUB. Please be free to use them!