SETSCREW 2250417 - Caterpillar

1. Put the machine on a flat level floor.
The grease in the track adjusting cylinder is under high pressure. The 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, 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 to see if it loosens. If the track does not loosen after opening the relief valve, move the machine forward and backward to release the tension.
2. Release the tension on the track. Loosen relief valve (1) only one turn. If the track does not loosen after opening the relief valve, move the machine forward and backward until the tension is released. 3. Loosen bolt (2) that holds track carrier roller (3) to the mounting bracket on the undercarriage frame assembly. 4. Put wood blocks and Tool (A) under the track assembly as shown. Lift the track assembly off of the track carrier roller. Using two persons, remove track carrier roller (3). The weight of the track carrier roller is 29 kg (65 lb). The following steps are for the installation of the track carrier roller.5. Make sure the shaft of the track carrier roller and the bore in the mounting bracket on the undercarriage frame assembly is clean and free of dirt. 6. Put the track carrier roller in position in the mounting bracket. Adjust the carrier roller until distance (B), the distance between the outside face of the mounting bracket and the carrier roller is 7.0 0.5 mm (.28 .02 in).7. After adjusting the position of the carrier roller in the mounting bracket, tighten bolt (2).8. Make sure the carrier roller rotates smoothly by hand. Slowly lower the track assembly on to the carrier roller with Tool (A).9. Tighten the tension of the track. Refer to the topic "Tracks" in the "Operation & Maintenance Manual."Disassemble & Assemble Track Carrier Rollers
Start By:a. remove track carrier rollers Fluid Spillage ContainmentCare must be taken to ensure that the fluids are contained during performance of the inspection, the maintenance, the testing, the adjusting and the repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to the "Tools And Shop Products Guide", NENG2500 for the tools and the supplies suitable to collect and contain any of the fluids in Caterpillar machines. Dispose of the fluids according to local regulations and mandates.1. Thoroughly clean the outside of the track carrier roller prior to disassembly. 2. Remove plug (2), and drain the oil from the carrier roller in a suitable container for disposal. The capacity of the track carrier roller is 180 10 ml (6.12 .34 oz).3. Remove three socket head bolts (1) and cover (3) from the track carrier roller. 4. Remove O-ring seal