GENERATOR GP 2681180 - Caterpillar

Start By:a. remove counterweightb. remove boom cylindersc. remove boom 1. Position drain plug (2) for each final drive in the position shown. Drain the oil from each final drive into a suitable container. The capacity of each final drive is 13 liters (3.4 U.S. gal).2. Put wood blocks in front of and behind each track assembly.3. Remove two cover bolts (1) from the final drive. 4. Install two suitable size threaded rods (3) in the final drive, in place of two bolts (1). The threaded rods will prevent the ring gear and carrier assemblies from falling out of position when cover (5) is removed.5. Remove remaining bolts (4) that hold cover (5) in position.6. It may be necessary to use a soft faced hammer to break the seal between the cover and ring gear of the final drive. Using two persons, remove cover (5) from the final drive. Using two persons, remove cover (5) from the final drive. The weight of the cover is 30 kg (66 lb).
When ring gear (7) is removed from cover (5) in each final drive, and the covers are reinstalled on the machine, the brakes for the machine are inoperable. The machine is free to move. To prevent movement of the machine, be sure wood blocks have been installed in front of and behind each track assembly.
7. Remove twelve socket head bolts (6) and ring gear (7) from cover (5).8. Temporarily reinstall cover (5) back on the final drive. Remove the two threaded rods from the final drive.9. Repeat Steps 3 through 8 for the other final drive.10. Remove the swivel joint from the machine. See the topic "Remove & Install Swivel Joint" in this module.
Typical Example
To prevent damage to the boom cylinder mounting pins, wrap them with tape after reinstalling them in the upper structure and prior to fastening a hoist to them.
11. Reinstall two boom cylinder mounting pins (8) in the upper structure. Install the retaining bolts that hold the mounting pins in place. Wrap the pins with tape to prevent possible damage to them.
Typical Example12. Fasten a hoist to the boom cylinder mounting pins at the front of the upper structure as shown.13. Fasten a hoist to the main frame at the rear of the upper structure. A total of forty bolts hold the upper structure to the undercarriage frame assembly.14. Remove forty bolts (9) that hold the upper structure to the undercarriage frame assembly.
Typical Example15. Fasten a chain to undercarriage frame assembly (10) as shown.
Typical Example
During removal or installation, the upper structure must be kept in a level position at all times.
16. Slowly raise upper structure (11) off of undercarriage frame assembly (10). Raise the upper structure until the pinion shaft in the swing drive is clear of the swing gear and bearing in the undercarriage frame assembly. The weight of the upper structure is approximately 10433 kg (23000 lb).17. Pull undercarriage frame assembly (10) clear of upper structure (11) with the lift truck.
Typical Example18. Put tooling (A) in