HUB 2552940 - Caterpillar

1. Put the machine on a flat level floor.
The grease in the track adjusting cylinder is under high pressure. Grease coming out of the relief valve of the track adjuster, which is under high pressure, can penetrate the body causing personal injury or death. When loosening the tension on the track assembly, loosen the relief valve only one turn. Do Not visually inspect the relief valve to see if grease is being released from the track adjuster. Instead, watch the track assembly to see if it loosens. If the track assembly does not loosen, move the machine forward and backward to release the tension.
2. Release the tension on the track assembly. Loosen relief valve (1) for the track adjuster only one turn. If the track assembly does not loosen after opening the relief valve, move the machine forward and backward until the tension is released. To provide additional clearance for the removal of the master pin, the track shoe on each side of the master pin can be removed. Use Tool (B) to remove the track shoe mounting bolts.3. Move the track assembly until master pin (2) is in the approximate position shown. Put Tool (A) under the track grouser as shown, and move the track onto the tool.
To prevent possible personal injury during the removal of the master pin, keep away from the area outside the track assembly near the master pin. The master pin may come out of the track links with force during the removal procedure.
The track bushings will fall out of the track links when the track assembly is separated.4. Remove cotter pin (3) from the master pin. Use a hammer and a punch to remove master pin (2) from the track links. Separate the track links, and locate the two track bushings. Move the machine slowly forward to move the track assembly off of the sprocket, the track carrier rollers and the front idler.5. Fasten a hoist to the rear of the track assembly. Raise the track assembly off of Tool (A), and remove the tool from under the track assembly. Lower the rear of the track assembly to the floor.Connect Track Assemblies
1. Install Tooling (A) in the track link and on the sprocket as shown.2. Start the machine. Move the sprocket forward until the track assembly is pulled up on the sprocket and the end of the track assembly is forward of a vertical line through the center of the sprocket. Remove Tooling (A). 3. Install Tool (B) between the first bushing in the track link and the sprocket as shown.4. Move the sprocket forward. Use Tool (B) to guide the track assembly over the carrier rollers and the front idler. 5. Install Tooling (C) and pin (1) from Tooling (A) between the links in the ends of the track assembly as shown. 6. Move the track assembly forward or backward until the separation in the track assembly is below a horizontal line through the center of the sprocket.7. Apply 5P-0960