TWO EMPLOYEES WERE LOADING BELT STRUCTURE TAKEN OUT AFTER A BELT PULL BACK. CO-WORKER WAS OPERATING SCOOP. HE PULLED SCOOP UP TO PILE OF STRUCTURE. EE STARTED LOADING WHILE CO-WORKER WAS GETTI NG OUT OF SCOOP. IN THE ACT OF GETTING OUT OF SCOOP HE ACCIDENTLY HIT LEVER IN SCOOP WHICH LET BUCKET DOWN ON INJURED'S FOOT.