MACHINE OPERATIONS AND CONTROLS OPERATION BUCKET REPLACEMENT 0. When pins are knocked in with a hammer, pieces of metal may fly and cause serious injury. When carrying out this operation, always wear goggles, hard hat, gloves, and other protective equip- ment. When the bucket is removed, place it in a stable condition. If pins are hit with a strong force, there is a hazard that the pin may fly out and injure people in the surrounding area. Make sure that there is no one in the surrounding area before starting the opera- tion. When removing the pins, do not stand behind the bucket. In addition, be extremely careful not to insert your foot from the side when working.
When removing or inserting pins, be extremely careful not to get your fingers caught. Never insert your fingers into the pin holes when aligning the holes. Stop the machine on a firm, flat surface. When performing joint work, make clear signals to each other and work carefully for safety's sake. 1. Place the bucket in contact with a flat surface. REMARK When removing the pins, place the bucket so that it is in light contact with the ground. If the bucket is lowered strongly to the ground, the resis- tance will be increased and it will be difficult to remove the pins. NOTICE After removing the pins, make sure that mud or sand does not get on them.
Dust seals are fitted at both ends of the bushings, so be careful not to damage them. 2. Remove the stopper bolts and nuts, then remove pins (A) and (B), and remove the bucket. 3. Align the arm with hole (1) and the link with hole (2), then coat pins (A) and (B) with grease and install them. REMARK When installing the bucket, the O-rings are easily dam- aged, so fit the O-rings on the boss of the arm end as shown in the diagram. When knocking the pin, move the O-ring down to the regular groove. 4. Install the stopper bolts and nuts for each pin, then grease the pin. 3-70 WARNING