Usage:
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To facilitate removal of the bucket pins without causing damage to the pins, bushings and/or O-ring seals, put the bucket flat on the floor and stick in a vertical position as shown. |
1. Start the machine, and position the bucket, stick and rod links as shown.
2. Remove retaining bolt (1) and two nuts (2) from bucket pins (3).
3. Be sure the threaded puller hole in the bucket pin is clean prior to installation of tooling (A). Fasten tooling (A) to bucket pin (3) as shown. Fasten a lifting strap and a hoist to tooling (A) to support it as shown.
4. Slide O-ring seals (5) off of the joints between the bucket and link assembly (4) and onto the flanges on the bucket.
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When bucket pin (3) is removed, link assembly (4) will swing forward and out of the bucket. To prevent possible personal injury, do not stand in front of the link assembly (4) when bucket pin (3) is being removed. |
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5. Using tooling (A), remove bucket pin (3) far enough to free link assembly (4) from the bucket. Do not remove bucket pin (3) completely from the bucket. Link assembly (4) will swing forward when the bucket pin is removed.
6. Remove tooling (A) from bucket pin (3). Remove bucket pin (3) by hand. The weight of the bucket pin is 25 kg (55 lb). Remove O-ring seals (5) from the flanges on the bucket.
7. Slide O-ring seals (7) off of the joints between the stick and bucket and onto the flanges on the bucket. Remove six bolts (6) and the washers that hold plate (8) in position over the end of the bucket pin (12). Remove the plate. Remove shims (9) that are located under plate (8).
8. Remove retaining bolt (10) and two nuts (11) from the bucket pin (12).
9. Be sure the threaded puller hole in the bucket pin is clean prior to installation of tooling (A). Fasten tooling (A) to bucket pin (12) as shown. Fasten a lifting strap and a hoist to tooling (A) to support it.
10. Using tooling (A), remove bucket pin (12) far enough until the stick is free of the bucket. Do not remove bucket pin (12) completely out of the bucket.
11. Remove tooling (A) from bucket pin (12). Remove bucket pin (12) by hand. The weight of the bucket pin (12) is 27 kg (60 lb).
12. Start the machine, and raise the stick out of the bucket. The weight of the bucket is approximately 1270 kg (2800 lb).
13. Remove flange (13) from the bucket.
14. Remove O-ring seals (7) from the flanges on the bucket.
NOTE: The following steps are for installation of the bucket.
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Be sure the stick pin bore, bucket pin bores, bucket pins, and flange and O-ring seals are thoroughly clean prior to installation of the bucket. |
15. Check the condition of O-ring seals (5) and (7). If the seals are worn or damaged, use new parts for replacement.
16. Put a thin coat of 5P0960 Multipurpose Grease on the outside machined diameter and the inside bore of flange (13). Install flange (13) in the bucket as shown.
17. Temporarily install an O-ring seal (7) on each flange of the bucket at the bucket-to-stick pin bore. Start the machine, and lower the stick into the bucket until the pin bores are in alignment with each other.
18. Be sure the threaded puller hole in the end of bucket pin (12) is clean. Put a thin coat of 5P0960 Multipurpose Grease on bucket pin (12). Install tool (B) in the end of the bucket pin. Install bucket pin (12) with a hammer. Remove tool (B) from the bucket pin. Put the retaining bolt hole in bucket pin (12) in alignment with the retaining bolt hole in the bucket. Temporarily install retaining bolt (10) and two nuts (11).
19. Align the locating hole in plate (8) with the locating pin in flange (13). Install plate (8), without shims (9) on flange (13). Install six bolts (6) and the washers. Tighten bolts (6) evenly.
20. Move the bucket to one side until it makes contact with the stick. Measure the clearance between the bucket and stick at flange (13). Record this dimension. Add shims (9) between plate (8) and flange (13) until the clearance [dimension (X)] between the stick and bucket is 0.5 ± 1.0 mm (0.02 ± 0.04 in).
21. Slide O-ring seals (7) over the joints between the bucket and stick.
22. Temporarily install an O-ring seal (5) on each flange of the bucket at the bucket-to-link assembly pin bore.
23. Be sure the threaded puller hole in the end of bucket pin (3) is clean. Put a thin coat of 5P0960 Multipurpose Grease on bucket pin (3). Install tool (B) in the end of the bucket pin (3) Push the link assembly in position in the bucket. Install bucket pin (3) with a hammer. Remove tool (B) from the bucket pin. Put the retaining bolt hole in bucket pin (3) in alignment with the retaining bolt hole in the bucket. Temporarily install retaining bolt (1) and two nuts (2)
24. Slide O-ring seals (5) over the joints between the bucket and link assembly.
25. Tighten retaining nuts (2) and (11) as shown in the illustration. Tighten the outside nut until it is even or 0.5 mm (0.02 in) above the end of the retaining bolt. Tighten the inside nut against the outside nut.
26. Lubricate the bucket pins. See the Operation & Maintenance Manual for the correct procedure.