HOUSING-BEARING 1388052 - Caterpillar

Start By:a. remove front idlers, recoil spring assemblies and hydraulic track adjusters1. Thoroughly clean the outside of the front idler prior to disassembly.2. Remove the fill/drain plug from the front idler. Drain the oil from the idler into a suitable container for storage or disposal. The capacity of the idler is approximately 680 ml (23.12 oz.). 3. Put the front idler on its side as shown. The weight of the front idler is 356 kg (785 lb).4. Remove two spring pins (1) from bearings (2). Fasten a hoist to two bearings (2), and remove them from the shaft of the front idler. The weight of each bearing is 34 kg (75 lb). 5. Remove Duo-Cone seals (3) from bearings (2). 6. Remove shaft (5) from the front idler.7. Remove two O-ring seals (4) from shaft (5). 8. Remove Duo-Cone seal (6) from each side of the front idler. 9. Remove bushings (7) from each side of the idler. The following steps are for the assembly of the front idler.10. Thoroughly clean all parts of the front idler prior to assembly.11. Check the condition of bushings (7). If the bushings are damaged, use new parts for replacement.12. Lower the temperature of bushings (7), and install one in each side of the front idler with a press.13. Temporarily install a bearing (2)