VALVE GP-SOLENOID 4227570 - Caterpillar

To facilitate the removal of the bucket pins without causing damage to the pins, the bushings and/or the O-ring seals, put the bucket flat on the floor and the stick in a vertical position as shown.
1. Start the machine, and position the bucket, the stick and the rod links as shown. 2. Remove retaining bolt (1) and two nuts (2) from bucket pin (3). 3. Make sure the threaded puller hole in the bucket pin is clean prior to the installation of Tooling (A). Fasten Tooling (A) to bucket pin (3) as shown. Fasten a lifting sling 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 to the flanges on the bucket.
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 link assembly (4) when bucket pin (3) is being removed.
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 the bucket and to the flanges on the bucket. Remove five bolts (6) and the washers that hold plate (8) in position over the end of bucket pin (12). Remove plate (8). Remove shims (9) that are located under plate (8).8. Remove retaining bolt (10) and two nuts (11) from bucket pin (12). 9. Make sure the threaded puller hole in the bucket pin is clean prior to the installation of Tooling (A). Fasten Tooling (A) to bucket pin (12) as shown. Fasten a lifting sling 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 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. The following steps are for the installation of the bucket.
Make sure the stick pin bore, the bucket pin bores, the bucket pins, the flange and the O-ring seals are thoroughly clean prior to the installation of the bucket.
15. Check the condition of O-ring seals (5) and (7). If the O-ring seals are damaged, use new parts for replacement.