ALTERNATOR GP-CHARGING 1978820 - Caterpillar

Disassemble Turbocharger (T12)
Start By:a. remove turbocharger 1. Install the turbocharger on Tool (A).2. Put alignment marks on the housings for correct installation at assembly.3. Loosen clamp (1).4. Remove compressor housing (2). Remove clamp (1). 5. Remove bolts (3), locks (6) and plates (5).6. Remove the center section from turbine housing (4). 7. Install Tool (C) in Tool (B). Install the center section in Tool (C) as shown.
When nut (7) is loosened, do not put side force on the shaft. The shaft may bend.
8. Remove nut (7). 9. Install Tool (D) with the center section on Tool (E). Remove impeller (9) with an arbor press and Tool (F). 10. Remove shaft and wheel assembly (10), shroud (11) and spacer (13) from center housing (12). 11. Remove bolts (14), locks (15) and plate (16) from the center housing. 12. Remove collar (17) from the housing. 13. Remove two bearings (18) and three snap rings (19) from the center housing.Assemble Turbocharger (T12)
1. Make sure that all of the oil passages in the turbocharger cartridge housing are clean and free of dirt and foreign material.2. Put clean engine oil on all parts of the cartridge assembly.
Rings (9), (11) AND (15) must be installed with the round edge of the outside diameter of the rings toward the bearings.
3. Install snap ring (15) bearing (12) and snap ring (11) in center housing (10). Install snap ring (9) and bearing (8). Put 6V2055 High Vacuum Grease in the groove for seal ring (14) assembly to one half or more of the depth of the groove all the way around.
Do not cause damage to seal ring (14) when