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TURBOCHARGER IS A VERY HIGH SPEED MACHINERY. ANY TROUBLE WHILE RUNNING CAN CAUSE SERIOUS DAMAGE TO THE TURBOCHARGER AND HENCE EARLY STEP SHOULD BE TAKEN TO AVOID SUCH DAMAGE.

TURBOCHARGER CAN BE PUT OUT OF OPERATION, BY FOLLOWING THE STEPS GIVEN BELOW.

CONDITION 1 :-

• THE SHIP MUST BE INSTANTLY MANEUVERED:-  REDUCE THE LOAD UNTIL THE VIBRATION CEASE.
• THE SHIP MUST BE INSTANTLY MANEUVERED BUT THE DAMAGE TO TURBOCHARGER IS SUCH THAT IT CANNOT BE RUN AT LOW LOAD :-

THIS MODE OF OPERATION IS TO BE CARRIED OUT IF YOU HAVE TO RUN THE ENGINE FOR SMALL TIME.

1. IF ENGINE HAS ONLY 1 TURBOCHARGER :-

• STOP THE ENGINE.
• LOCK THE ROTOR OF THE TURBOCHARGER.
• REMOVE THE COMPENSATOR BETWEEN THE COMPRESSOR OUTLET AND THE SUCTION AIR DUCT. IT DECREASES SUCTION RESISTANCE.
• LOAD TO BE REDUCED

2. IF ENGINE HAS 2 TURBOCHARGER WITH 2 OR MORE TURBOCHARGER :-

• STOP THE ENGINE.
• LOCK THE ROTOR OF THE TURBOCHARGER.
• INSERT AN ORIFICE PLATE IN COMPRESSOR OUTLET. A SMALL AIR FLOW IS REQUIRED FROM COMPRESSOR TO COOL THE IMPELLER.
• LOAD TO BE REDUCED.

CONDITION 2:-

PUTTING THE TURBOCHARGER OUT OF OPERATION FOR EXTENDED PERIOD 

1.  ENGINE WITH ONE TURBOCHARGER AND EXHAUST BYPASS :-

• STOP THE ENGINE.
• LOCK THE ROTOR OF THE TURBOCHARGER.
• REMOVE THE BLANKING PLATE FROM EXHAUST BYPASS LINE
• REMOVE THE COMPENSATOR BETWEEN THE COMPRESSOR OUTLET AND THE SUCTION AIR DUCT. IT DECREASES SUCTION RESISTANCE.
• LOAD TO BE REDUCED

2. ENGINE WITH ONE TURBOCHARGER AND NO EXHAUST BYPASS :-

• STOP THE ENGINE.
• REMOVE THE ROTOR AND NOZZLE RING OF THE TURBOCHARGER.
• INSERT BLANKING PLATE.
• REMOVE THE COMPENSATOR BETWEEN THE COMPRESSOR OUTLET AND THE SUCTION AIR DUCT. IT DECREASES SUCTION RESISTANCE.
• LOAD TO BE REDUCED

3. IF ENGINE HAS 2 TURBOCHARGER WITH 2 OR MORE TURBOCHARGER :-

• STOP THE ENGINE.
• LOCK THE ROTOR OF THE TURBOCHARGER.
• INSERT AN ORIFICE PLATE IN COMPRESSOR OUTLET. A SMALL AIR FLOW IS REQUIRED FROM COMPRESSOR TO COOL THE IMPELLER AND TO PREVENT CORROSION.
• LOAD TO BE REDUCED.