INJURED CLAIMS HE WAS WORKING IN STALL NO. 3 IN THE NEW TRUCK SHOP. INJURED WAS REPLACING WEAR PLATES ON THE BOTTOM OF LOADER BUCKET. WHILE INJURED WAS JACKING UP ONE OF THE PLATES, IT SLIPPED OFF THE JACK AND LANDED ON TIP OF HIS 2ND AND 3RD DIGITS (FINGERS). INJURED WAS POSITIONING WEAR PLATE TO BE SECURED WITH BOLTS.