CAP 1382060 - Caterpillar

Disassemble Turbocharger
Start By:a. remove turbocharger Fluid Spillage ContainmentCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and 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 "Tools And Shop Products Guide", NENG2500 for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates. 1. Install the turbocharger on Tool (A) as shown.2. Put alignment marks on three housings of the turbocharger for correct alignment during assembly. Loosen clamp (2), and remove the clamp and housing (1) from housing assembly (3). 3. Loosen clamp (4), and remove housing assembly (3) from housing (5). 4. Put the cartridge group in position in Tool (B) as shown.
When the nut is loosened, do not put a side force on the shaft. This can result in a bent shaft.
5. Use a 5S-9566 Sliding T-Wrench and a universal socket (6) to remove the nut that holds the compressor wheel to the wheel assembly.6. Remove compressor wheel (7) and the shims from wheel assembly (8).7. Remove housing assembly (3) from wheel assembly (8). 8. Remove ring (9) and backplate (10) from wheel assembly (8). 9. Use Tool (C), and remove snap ring (11) from housing assembly (3). 10. Remove insert (12) and sleeve (13) from housing assembly (3). 11. Remove ring (14) from sleeve (13). 12. Remove two screws (15) and deflector (16) from housing assembly (3). 13. Remove ring (18) and bearing assembly (17) from the housing assembly. 14. Remove sleeve (19) and ring (20) from the housing assembly. 15. Remove O-ring seal (23) from the housing assembly.16. Use Tool (D), and remove snap ring (22) from the housing assembly.17. Remove bearing (21). Remove the snap ring behind the bearing with Tool (D). 18. Use Tool (D), and remove snap ring (25) from the housing assembly.19. Remove bearing (24). Remove the snap ring behind the bearing with Tool (D).20. Check all the parts of the turbocharger for damage. If the parts are damaged, use new parts for replacement. See Special Instruction, SMHS6854 for Turbocharger Reconditioning. Also see Guidelines For Reusable Parts, SEBF8018.Assemble Turbocharger (Schwitzer S4A)
1. Make sure that all of the oil passages in the turbocharger cartridge housing are clean and free of dirt and foreign material. Do not put oil on any parts of the turbocharger until after the compressor wheel has been installed. After the turbocharger has been assembled, pour clean engine oil into the oil inlet of the turbocharger.
Make sure that the snap rings that hold bearings (24) and (21) in position in housing assembly (3) are installed with the round edge of the outside diameter toward the bearing.
2. Install the snap ring behind bearing (24) with Tool (D).3. Install bearing (24) in housing assembly (3).4. Use Tool (D), and install snap ring (25) in the housing assembly. 5. Install the snap ring behind bearing (21) with