12. OPERATION 12.16 REPLACEMENT AND INVERSION OF BUCKET ¤ WARNING When knocking the pin in with a hammer, metal particles may fly and cause serious injury, particularly if they get into your eyes. When carrying out this operation, always wear goggles, helmet, gloves, and other protective equipment. When the bucket is removed, place it in a stable condition. 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. 12.16.1 REPLACEMENT 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 resistance will be increased and it will be difficult to remove the pins. 2. Remove the stopper bolts and nuts, then remove pins A and B , and remove the bucket. Bucket cylinder NOTICE After removing the pins, make sure that they do not become contaminated with sand or mud and that the seals of bushing on both sides do not become damaged. Arm Link 3. Align the arm with holes 1 and the link with holes 2 , then coat with grease and install pins A and B . AM090950 REMARK When installing the bucket, the O-rings are easily damaged, so fit the O-rings on the boss of the arm end as shown in the diagram.
When knocking in the pins, move the O-ring down to the regular groove. 4. Install the stopper bolts and nuts for each pin, then grease the pin. AM090960 AM090970 Bucket O-ring Arm 2-79