BUSHING 2397713 - Caterpillar

Without the sun gear in place, the brakes are ineffective. Personal injury or death could result. Provide other means to hold or stop the machine.
Remove the sun gear from both final drives. Refer to the Operation and Maintenance Manual, "Final Drive Ring Gear Removal".
Start the engine. Rotate the upper structure until the upper structure is at 90 degrees to the undercarriage frame . Raise the boom and fully extend the stick cylinder. Stop the engine.
Remove the right side boom cylinder. Refer to Disassembly and Assembly, "Boom Cylinder - Remove".
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Adjust the length of Tooling (C) and install Tooling (C) in place of the right hand boom cylinder. Be sure to use six bolts, six washers, and six nuts in order to hold Tooling (C) together. The weight of Tooling (C) is approximately 408 kg (900 lb). Install plate (1) and pin assembly (2). Note: Do not lower the boom after Tooling (C) has been installed in the place of the right hand boom cylinder.
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Install Tooling (B) into stick (3). Position Tooling (B) and stick (3) onto Tooling (A).
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Attach a suitable lifting device to Tooling (D) and position Tooling (D) onto Tooling (E). The weight of Tooling (D) is approximately 249 kg (550 lb).
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Position Tooling (D) and Tooling (E) under the main frame of the machine.
At operating temperature, the hydraulic oil is hot and under pressure. Hot oils can cause burns.To prevent possible personal injury, release the pressure in the work tool hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed.Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch.
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
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Position Tooling (H) under guards (4). Remove bolts (5). The weight of each guard (4) is approximately 23 kg (50 lb). Note: The guards can be heavier due to debris on top of the guards.
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Drain the oil from the hydraulic oil tank into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change".
Disconnect hose assemblies (6) and (7). Disconnect fitting (8) from swivel (9).
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Disconnect tube assembly (10). Use Tooling (F) and remove bolts (11) that secure the upper structure to the undercarriage frame.
Install Tooling (J) in the upper structure. Install the four guide bolts with 90 degree angles between the guide bolts. Install Tooling (J) through the swing gear and bearing into the upper structure.
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Illustration 9 g01217455Note: It is important to keep the upper structure level when the upper structure is being removed from the undercarriage frame. Note: The