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FUNCTIONS REDUCE FRICTION IN ROTATING ASSEMBLIES
COOLING THE SYSTEM
REMOVAL OF WEAR DEBRIS.
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TYPES OF LUBRICATION SYSTEM SUMP LUBRICATION
FORCED LUBRICATION
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TURBINE LUBRICATION SYSTEM Self contained L.O system for STG
Shaft driven main oil pump
AC motor driven auxiliary oil pump
DC motor driven emergency oil pump
Duplex shell & tube type L.O.Coolers
Duplex L.O filters
Portable L.O centrifuge
Mist eliminators for oil recovery
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MAINTENANCE PHILOSOPHY PREVENTIVE
PREDICTIVE
CONDITION MONITORING
BREAKDOWN
OVERHAULINGS
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Lubrication system
Cleaning
Leakages Oil level in tanks
Strainer cleaning
Leakages in lines
Any other abnormality
Preventive maintenance
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Condition monitoring
Trend analysis
Planning activities based on analysis
Predictive maintenance
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RLA of components
Replacement based on results RLA
OEM recommendations
Reliability Centered Maintenance
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Risk evaluation
Prioritizing risk for the system/assemblies
Planning
REAP
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Equipment failures(shafts/bearings etc)
Abnormal sounds
Malfunctioning/leakage of valves etc
Breakdown maintenance
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RLA of components
Replacement based on results RLA
OEM recommendations
Reliability Centered Maintenance
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Equipment failures(shafts/bearings etc)
Heavy steam leakages
Abnormal sounds
Malfunctioning/leakage of valves
Breakdown maintenance
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Overhauling of lubrication system MOP servicing
Bearing inspections-DPT,UT
Replacement of wear rings, bearings on conditionbasis.
Replacement of jacking oil hoses in bearins.
Inspection of all line joints.
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Overhauling of lubrication system MOT cleaning and inspection
Oil cooler tube cleaning
Servicing of oil valves Servicing of lub oil pumps
Servicing of jacking oil pumps
Inspection of all lines
Oil flushing
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Journal bearings
Thrust cum journal bearing
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TURBINE HYDRO-
DYNAMIC BEARING
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SHAFT MISALLIGNMENT RADIAL
AXIAL
BOTH
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ALLIGNMENT PROCEDURE MANUAL
LASER ALLIGNMENT SYSTEM
ADDING OR REMOVAL OF SHIM
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BALANCING PROCESS MEASUREMENT (VIBRATIONS AT SUPPORTS)
DATA ANALYSIS
REFERENCE MARKS(RADIUM STRIPS)
BALANCING WEIGHTS
REPETITIVE PROCESS
(HIT&TRIAL METHOD)
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OVERHAULING OF CONDENSER
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CONDENSER TUBES FOULING
SCALING
EROSION CHOCKING
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Condenser tube cleaning On load tube cleaning
Offload tube cleaning
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Cleaning techniquesJet
Bullet
Chemical(Sulphanic acid) Magnetic descaling
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CONDENSER ONLOAD TUBE CLEANING
TEMPERATURE AND HUMIDITY CONTROL
TUBE CLEANING
ATTENDING TUBE LEAKAGES
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Overhauling Activities1.CONDENSER TUBE EDDY CURRENT TESTING
2. CONDENSER TUBE WATER JET CLEANING
3.CONDENSER TUBE BULLET CLEANING
5. REPLACEMENT OF SACRIFICIAL ANODES IN
WATER BOX
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