TORQUING ROD BEARING CAP ON 155 KOMATSU DOZER WITH TORQUE WRENCH SET @ 300 FT/LBS. ADAPTER BROKE & SUDDEN SHIFT OF BODY WEIGHT CAUSED CUT TO MIDDLE FINGER OF RIGHT HAND. WRITING ON FAILED TOOL WARNED TORQUE NOT TO EXCEED 4500 LB/IN. USING BELOW FORMULA WE WERE PERFORMING WORK WITHIN TOLERENCE OF TOOL.