105489-3594 ZEXEL 9 420 612 141 BOSCH GOVERNOR 9420612141 1054893594 223006861a

1. Fasten straps and a hoist to the turbocharger.2. Disconnect tube assemblies (1) and (4) from the turbocharger cartridge assembly.3. Remove four bolts (3) and then remove turbocharger (2). Weight of the turbocharger is 23 kg (51 lb.). The following steps are for the installation of the turbocharger.4. Put turbocharger (2) in position with bolts (3).5. Connect tube assemblies (1) and (4) to the turbocharger cartridge assembly.Disassemble Turbocharger
Start By:a. remove turbochager 1. Install the turbocharger in tool group (A). Put alignment marks on the three housings of the turbocharger for correct installation and alignment at assembly. Remove "V" clamp (2) and compressor housing (1). 2. Remove "V" clamp (3). Remove cartridge housing (5) from turbine housing (4).
When the nut is loosened, do not put a side force on the shaft. This can result in a bent shaft.
3. Install tool (C) in tool (B), and put the cartridge assembly in tool (C) as shown. Use tool (D) to remove the nut that holds compressor wheel (6). 4. Put the cartridge assembly in tool (E), and use a press (if necessary) to remove compressor wheel (6) from the turbine wheel and shaft assembly. Do not let the turbine wheel and shaft assembly fall during removal of the compressor wheel from the turbine wheel and shaft. 5. Remove seal ring (7) and shroud (8) from turbine wheel and shaft assembly (9). 6. Bend the tabs of the locks from bolts (10), and remove the bolts and locks.7. Remove backplate assembly (11) from the cartridge housing. 8. Remove spacer (12) from backplate assembly (11). Remove seal rings (13) from spacer (12). 9. Remove collar (14), thrust bearing (15) and O-ring seal (16) from the cartridge housing. 10. Remove top bearing (17) and the washer from the cartridge housing. Put a long dye mark on the top face of bearing (17).11. Use tool (F), and remove the two rings that hold the top and bottom bearings in position. Remove the bottom bearings and washer. Put a short dye mark on the bearing. The dye marks are used for identification of the bearings when they are installed.12. Use tool (F), and remove the last ring that holds the bottom bearing in position from the cartridge housing.13. Check all the parts of the turbocharger for damage. If the parts are damaged, use new parts for replacement. See Special Instruction Form No. SMHS6854 for Turbocharger Reconditioning. Also see Guidelines For Reusable Parts, Form No. SEBF8018.Assemble Turbocharger
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 (18), (21) and (22) must be installed with the round edge of the outside diameter of the rings toward the bearings.
3. Install ring (21) in the cartridge housing with tool (F).4. Install washer (19) and bearing (20) in the cartridge housing. Make sure the short dye mark on bearing (20) is up. 5. Install rings (18) and