The Contractor Has To Provide Services Required For Reconditioning Overhauling And Commissioning Work Of Loco No 3 The Following Works Has To Be Carried Out On 700 Hp Diesel Twin Power Pack Bobo With Cummins Nta 855L Engine Bhel Make Loco 1Total Di

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The Contractor Has To Provide Services Required For Reconditioning Overhauling And Commissioning Work Of Loco No 3 The Following Works Has To Be Carried Out On 700 Hp Diesel Twin Power Pack Bobo With Cummins Nta 855L Engine Bhel Make Loco 1Total Dismantling Of Both Side Engine Hoods 2Decoupling Generator From Engine 3Removing The Engine And Generator 4Overhauling Of Traction Generators Involving Cleaning Commutator Veer Ring For Any Copper Beads Examination Of The Brush Gear And Cleaning Insulation Of Brush Arms Checking Brush Ring Alignment Checking Carbon Brush For Wear And Tear Inspection Of Carbon Brush Holder Examination Of Belt Drive For Proper Tension Cleaning Grease Escape Drains Dismantling Cleaning Visual Inspection Of Bearing And Lubrication Visual Observation To Check Decolourization Of Winding If Any Varnishing The Same Terminal Box Connection Checking Cooling System Inspection Electrical Testing On Motor Insulation Resistance Winding Resistance Etc Refitting And Alignment Of The Generator Running The Machine On No Load And Checking Bearings Vibration And Rough Commutator 5Lifting The Upper Frame Removing Under Truck Bogies Removing Four Numbers Of Traction Motors 6Overhauling Of Traction Motor Involving Cleaning The Commutator Veer Ring For Any Copper Bead Examination Of The Brush Gear And Cleaning Insulation Of Brush Arms Checking Brush Ring Alignment Checking Carbon Brush For Wear And Tear Inspection Of Carbon Brush Holder Dismantling Of Motors Cleaning Armature Baking Armature To Remove The Moisture If Required Visual Inspection Of Bearing And Lubrication Checking Of All Brush Gear Bolts Checking Tightness Of Bolts Securing Axle Caps And Gear Case Checking Of Air Inlet Bellows Checking The Leakage From The Gear Case And Suspension Bearings Checking Suspension Of Suspension Bearing If Required Replacement With New Bearing Checking Wear Of Tooth Pinion And Gear Wheel Visual Observation Of Winding Reconditioning The Winding With Insulating Varnish Checking All The Components For Distortion Wear And Tear Checking Terminal Box Connection Electrical Testing On Motor Insulation Resistance Winding Resistance Etc Refitting And Alignment Of Motor 7Fixing Of Four Numbers Traction Motor Junction Boxes Motor Power Cable Termination And Dressing 8Refitting The Under Truck Bogies Engine And Generator Alignment Of Generator And Engine 9Coupling The Engine And Generator Cable Termination In Generator Connecting All The Solenoids In Engine Side 10Overhauling And Refitting Of All Relays Power Contactors And Auxillary Contactors It Includes Cleaning Checking Auxillary Contacts Coil Condition Refitting The Contactors And Relays If Wear And Tear Appears Replacing It With New Spares 11Rewiring Of Control Circuits Involves Wiring Of Protective Devices Such As Wheel Slip Relay Wsr Overload Relay Olr Ground Relay Gr High Temperature Protection Low Oil Level Protection Battery Charging Indication Low Air Protection As Per Bhel Drawing Drawing Enclosed With Ferules 12Rewiring Of Lighting And Fan Circuits As Per Bhel Drawing Drawing Enclosed With Ferules 13Rewiring Of Power Circuits Involving Battery Circuit Cranking Circuit Propulsion Circuit And Notching As Per Bhel Drawing Drawing Enclosed With Ferules 14Coupling The Engine And Generator And Refitting Them In Loco 15Fixing The Engine Hoods 16Testing And Functional Check Of The Electrical Related System 17Commissioning And Checking The Operations Of Loco