Hi! This is my dump trailer built for LEGO Technic Claas Xerion 5000 Trac VC. The motorized version of the Xerion is designed by Efferman, but the trailer can be also hauled manualy by original LEGO Technic set 42054. Since there are no pneumatic cylinders or actuators fit for the size of the trailer, I had to "cheat" and use a pulley system for lifting. I hope you like it! More about it here: http://www.eurobricks.com/forum/index.php?/forums/topic/145694-moc-tractor-dump-trailer/ Instructions and partlist: http://rebrickable.com/mocs/MOC-8830/MajklSpajkl/tractor-dump-trailer-for-claas-xerion-5000-trac-vc-42054-set/#comments Music: "Carpe Diem" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/