hitachi — I. MISCELLANEOUS

MAINTENANCE 2 Change Bucket O-Ring Shift CAUTION: When driving the connecting pins in or out, guard against injury from flying pieces of metal or debris; wear goggles or safety glasses, and safety equipment appropriate to the job. 1. Park the machine on a level surface. Lower the bucket to the ground and position it with the flat surface rest- ing on the ground. Be sure the bucket will not roll when the pins are removed. Bucket Boss Link 2. Slide the O-rings out of the way, as shown. 3. Remove bucket pins A and B to separate the arm and bucket. Clean the pins and pin bores. Apply sufficient grease to the pins and pin bores. B 4. Align the arm and alternate bucket.

Be sure the bucket will not roll. A 5. Install bucket pins A and B. 6. Install the locking pins and snap ring on pins A and B. 7. Adjust bucket linkage clearance for pins A. See adjust- ing bucket linkage clearance procedure. M104-07-063 8. Apply grease to pin joints A and B. 9. Start the engine and run at slow idle. Slowly operate the bucket in both directions to check for any interference in bucket movement. Do not operate a machine that has any movement interference. Correct interference problem. 7-80