THE EMPLOYEE WAS ASSISTING IN RECOVERING AN IMPACT BED ROM THE 010 24 WEST BELT TRANSFER. HE WAS HOOKING UP A CHAIN TO THE IMPACT BED. WHEN THE SCOOP TRAMMED FORWARD (TO IMPACT BED) THE BUCKET CAUGHT A TRANFER BEAM LYING ON THE BOTTOM, PUSHING IT FORWARD, PINCHING THE UPPER LEFT ARM AND CAUSING BRUISING AND LACERATION.