Safety—Maintenance Precautions Drive Metal Pins Safely Always wear protective goggles or safety glasses and other protective equipment before striking hardened parts. Hammering hardened metal parts such as pins and bucket teeth may dislodge chips at high velocity. T133738 –UN–14SEP00 Use a soft hammer or a brass bar between hammer and object to prevent chipping. TX03679,0001745 –19–03JAN07–1/1 1-4-3 010609 PN=25