JAW CRUSHER WAS NOT TAKING FULL FEED. EE EXITED LOADER TO CHECK CRUSHER CHAMBER AND AFTER NOTICING A TREE ROOT INSIDE, CLIMBED DOWN, LOCKED IT OUT AND CLIMBED BACK UP ON PLATFORM TO FREE ROOT. HE HAD DIFFICULTY, SO CLIMBED IN JAW AND SLID DOWN, CATCHING BOOT AND LODGING LEF IN JAW. TWISTED LEFT KNEE AND HEARD IT POP.