SHOE-TRACK 1Q4955 - Caterpillar

Remove And Install Turbochargers
start by: a) remove turbocharger heat shield (Marine Engines only)b) remove air cleaner housings 1. Loosen clamp (1) that holds the coupling to the exhaust elbow and remove shield (3) (Marine Engines only).2. Remove turbocharger oil supply line (2). 3. Remove turbocharger oil return line (5). Remove four bolts (4) that fasten the turbocharger to the exhaust manifold. 4. Loosen clamp (6) that fastens the elbow to the aftercooler.5. Remove the turbocharger from the engine. The turbocharger weighs 42 lb. (19 kg).6. Put the turbocharger in position on the engine and install and tighten clamp (6).7. Put 5P3931 Anti-Seize Compound on the threads of four bolts (4). Install the bolts and tighten to a torque of 40 4 lb.ft. (55 5 N m). Install new gasket and turbocharger oil return line (5).8. Install new gasket and turbocharger oil supply line (2).9. Install shield (3) and clamp (1) (Marine Engines only).end by:a) install turbocharger heat shield (Marine Engines only) b) install air cleaner housingsDisassemble Turbocharger
start by: a) remove turbocharger 1. Put the turbocharger in position on tool (A).2. Put a mark on the compressor cover and housings for installation purposes.3. Remove "V" clamp (2) and remove compressor cover (1). 4. Remove "V" clamp (3) and remove shaft housing from turbine housing (4).
When the nut is loosened do not put a side force on the shaft.
5. Put shaft housing in tool (B). Remove nut and compressor wheel (5) from the shaft. 6. Remove shaft housing from tool (B) and remove turbine wheel (7) and shaft from housing.7. Remove seal ring (6) from the turbine wheel. 8. Remove snap ring and insert (8) from the housing. 9. Push the sleeve (9) out of the insert. Remove the two seal rings from the sleeve. 10. Remove deflector (10), ring (15), sleeve (11), bearing (12), ring (16), snap ring (13), bearing (17) and snap ring (14) from the housing. Remove snap rings (13) and (14) with tool (C). Check the oil hole in bearing (12). If the oil hole is not open this will cause a bearing failure. 11. Turn the housing around and remove snap ring (18) and shroud (22).12. Remove snap ring (19), sleeve (20), bearing (21), and snap ring (23). Remove the two snap rings with tool (C).13. Inspect all parts and install new parts as needed.Assemble Turbocharger
1. Make sure all oil passages are open and clean. Put clean engine oil on all parts before assembly. 2. Install snap ring (4), bearing (3), sleeve (2) and snap ring (1). Install the two snap rings with tool (A). Install the snap rings with the round side toward the bearing. 3. Install shroud (5) on the housing. Turn the shroud to make sure it is down on the housing even. The high part (web) (6) on shroud, will keep the shroud from turning on the housing after assembly.4. Install snap ring that holds the shroud in place.5. Install the bearing and two snap rings in the compressor