8.9 Install filter silencer/air suction branch and compressor casing

- Fit O-ring gaskets (77005 & 77006).
- Fit ring bolts (90230) and install insert wall (77000).


The extension pieces on the ring bolts (90230) serve as a guide when installing the insert wall (77000).

- Fit diffuser (79000).
- Tighten screw (72002) fully and then loosen by ¼ turn. The screw must be loose and the diffuser must be able to move.
- Secure lifting device (90190) and both shackles (90195) to the compressor casing (72000) with lifting equipment.

Take account of the weight of the turbocharger parts when selecting a suitable rope. Check lifting equipment and secure properly.


Before fitting the compressor casing, screw three press-off nuts (61037) to the end of the thread on the studs provided for this purpose.
- Secure compressor housing (72000) using nuts (61037), do not fit complete.

- Remove shackle at the turbine end.
- Now finish fitting compressor casing completely with the nuts (61037).
- Remove lifting equipment and second shackle.
- Fit all remaining studs (72026) in the compressor casing.
- Mount silencer or air suction branch with nuts (72027).
- Install insulating shells.
- Fit the sealing air pipe between compressor casing (72000) and VTG unit (56100).
- Fit all air lines in accordance with the engine manufacturer’s instructions.

Work that exceeds the scope of the description in this chapter must only be performed by a trained fitter from an official ABB Turbo Systems service station.

          1. Purpose of the manual
          2. Layout and function
          3. Correct use of the turbocharger
          4. Essential information
          5. Abbreviations and symbols
          6. Turbocharger rating plate
          1. Basic safety instructions
          2. General safety instructions
          3. Special safety instructions
          4. Safety instructions and hazard protection
          5. Warnings on the turbocharger
          1. Oil supply
          2. Inspection work
          3. Putting into operation after laying up
          1. Servicing work
          2. Monitoring
          3. Emergency mode TPL..VA
          4. Surging of turbocharger
          5. Contact with rotating parts
          6. Shutting the engine down
          1. Foreword to MaintenanceServicing work
          2. Cleaning the filter silencer
          3. Cleaning the compressor during operation
          4. Cleaning turbines and guide blades in operation
          1. Possible remedies for failures
          1. Turbocharger weights
          2. Remove the turbocharger
          3. Installing the turbocharger
          1. Module weights
          2. Remove filter silencer/air suction branch and compressor casing
          3. Removing cartridge group
          4. Axial clearance
          5. Disassembling and assembling the turbine diffuser
          6. Dismantle the VTG unit together with the gas inlet casing
          7. Installing the VTG unit and gas inlet casing
          8. Installing the cartridge group
          9. Install filter silencer/air suction branch and compressor casing
          10. Table of tightening torques
          1. Possibilities for emergency repair
          2. Fitting the cover plate
          3. Blocking the inlets and outlets
          4. Bypass the turbocharger
          1. Taking out of operation for up to 12 months
          2. Taking out of operation for more than 12 months
          1. Ordering spare parts
          2. Directory of part numbers
          3. General view of turbocharger
          4. General view of cartridge group
          5. General view of VTG unit

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