EMPLOYEE WAS AT THE PRIMARY CRUSHER HOPPER USING A PORTA POWER HYDRAULIC JACK AND SHAFT TO PUSH METAL SKIRTING TOGETHER AT GRIZZLY FEEDER IN ORDER TO REPAIR A CRACK IN THE METAL. THE JACK AND SHAFT BUCKLED AND THE SHAFT STRUCK EE, CUTTING HIS RIGHT MIDDLE FINGER AND STRIKING HIS RIGHT FOOT. CUT REQUIRED SUTURES. EE WAS UNABLE TO WORK FROM 9/4/02 UNTIL RELEASED 9/11/02.