CONTROL GROUP 7G0144 - Caterpillar

Remove & Install Turbochargers
Start By:a. remove air cleaner housings (if equipped) 1. Remove turbocharger oil drain tube (7), elbow (5) and the gaskets from the engine. When installing elbow (5) apply 5P3931 Anti-Seize Compound to the face of the washers and the threads of the bolts that hold it. Remove elbow (5) and the O-ring seal from oil drain tube (7).2. Disconnect oil supply line (1) at both ends. Remove one bolt, nut, washer and clamp assembly holding oil supply line (1) to the bracket (not shown). When installing apply 5P3931 Anti-Seize Compound to the face of the washer and the threads of the bolt that hold the oil supply line to the bracket. Remove oil supply line (1) from the turbocharger.3. Fasten a strap and a suitable lifting device to turbocharger (6).4. Remove four bolts (2).5. Remove eight bolts (4) and washers that connect the turbocharger to exhaust elbow (3). Upon installation, apply 5P3931 Anti-Seize Compound to the face of the washers and the threads of bolts (4). Tighten bolts (4) to a torque of 45 10 N m (33 7 lb ft).6. Remove turbocharger (6) from the engine. The weight of the turbocharger is approximately 45 kg (100 lb). For installation of the turbochargers, reverse the removal steps.End By:a. install air cleaner housings (if equipped)Disassemble & Assemble Turbocharger
Start By:a. remove turbocharger 1. Put the turbocharger in position on a suitable holding fixture.2. Put marks on the housings of the turbocharger for correct installation and alignment at assembly.3. Loosen the lock tabs, remove eight bolts with locks (3) and four clamps (2). Remove turbine housing (1) from the cartridge assembly (6).4. Remove eight bolts and lockwashers (5) with the four clamps. Remove the cartridge assembly from compressor housing (4). To prevent a bent shaft, do not put side force on the turbine shaft when the compressor wheel nut is loosened. 5. Put the cartridge assembly in a holding fixture in a vertical position. Use a universal joint and socket of the correct size to remove nut (7) and washer (8) that holds compressor wheel (27) on the turbine shaft.6. Use a press and push turbine shaft (17) out of compressor wheel (27) and the cartridge housing. Remove compressor wheel (27) from the cartridge housing.7. Remove shroud (16) from turbine shaft (17).8. Remove seal ring (18) from turbine shaft (17).9. Remove ring (9). Remove seal ring (26) from ring (9).10. Remove retaining ring (12) and cover (11). Remove O-ring seal (23) from cover (11).11. Remove shield (10).12. Remove ring (25).13. Remove three bolts and lockwashers (13).14. Remove retainer (24). Make a note of the position of the oil holes for correct alignment at assembly.15. Remove bearing (22). Make a note of the position of the oil holes for correct alignment at assembly.16. Remove ring (21).17. Remove pipe plug (19 from bearing housing (14).18. Remove two bolt assemblies (20) from the bearing housing.19. Remove two bearings (15) from the bearing housing. If the bearings are to be