JCB excavator challenge

Dig up the rubble and take it to the dump at the end. You need to fill it before time runs out.
The graphers show the level in the dump, fill both graphers to win.

Controls. Slider is the throttle and the "f" button on the left switches between forward and reverse. The "g" button center right switches to the rear arm controller, the "f" button on the rear controller switches back to the front. I'll let you figure out the rest of the controls.

Hope you like it. :)