5.2 Cleaning the filter silencerv (part-1)

5.2.1 Filter silencer with tension band
TC filter silencer
Filter ring (if provided)
Cover panel
Tension ring
Screw plug
Trap cover
Fleece segment
Filter silencer body
Cover panel
Slide-in module = fleece segment + cover panel installed

Disassembling and cleaning the filter silencer

If provided
·         Remove filter ring (81265).
·         Rinse filter ring (81265) with water using detergent or, if very dirty, soak it. Squeeze out carefully. Rinse in cold water. Avoid high mechanical stress (water jet).

The dirt in the filter ring (81265) depends on the cleanness of the air drawn in. Wash or replace the filter ring as necessary or every 500 service hours.

·         Loosen and remove the tension rings (81270) from the trap covers (81271).
·         Pull the slide-in modules (E) out, bend the cover panels (81137 & 81138) open, and then take out the fleece segments (81136).
·         Clean fleece segment (81136). When cleaning, ensure that the fleece segments (81136) are cleaned only with a mild jet of compressed air and a soft brush or damp cloth. Otherwise the segments may be damaged or lose their shape.


Heavily soiled fleece segments and filter ring should be replaced with original parts from ABB Turbo Systems.

Assembling the filter silencer

·         Assemble the slide-in modules (E) by inserting fleece segments (81136) in the cover panels (81137).
·         Bend the cover panels (81137) back to their original shape.
·         Insert slide-in modules (E) in the grooves in the filter silencer body (81135).


When assembling, mount the extended cover panels (81138) over the three ribs (A).

·         Fit the tension bands (81270) and tighten on the trap covers (81271).
·         Fit filter ring (81265).

          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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