10.1 Taking out of operation for up to 12 months


If a turbocharger has to be laid up for up to 12 months, the decision whether the turbocharger needs special protection or not depends mainly on the condition of the lubricating oil before laying up. If the Total Acid Number (TAN) is lower than 2 mg KOH/g no special measures need to be taken. However, if the neutralisation factor is higher the turbocharger must be dismantled after laying up, cleaned and protective oil must be applied to the naked parts. If the turbocharger is left mounted on the engine, and the engine oil is replaced by a protective oil which is circulated with a pre-lubrication pump prior to laying up, no measures need to be taken in respect of the turbocharger.

The remains of the old engine oil will be washed away and the sensitive bearing parts will be largely protected against corrosion. If the rotor turns due to a draught from the flue, fit a blind flange between
the compressor casing and the charge-air duct.


          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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