Prior Information Notice For Repair And Maintenance Services Of Rolling Stock - Lkf 450 Engine Repair. The Subject Of The Contract Is A Review Or Repair Of 60 Pieces Of Lkf 350 Engine Rotors. The Repair Consists In Restoring Operational Parameters, In Accordance With Construction Documentation, Standards And Technical And Movement Documentation. Vapor Repair Includes A Basic Repair, Including The Work Contained In Table 1 Of Annex 1 To The Agreement (The Obligatory Scope Of Work Occurring In Each Repair). The Vulvaries Will Be Repaired Successively In Batches. The First Batch Of Rotors After Signing The Contract Will Not Be More Than 4 Pieces, Subsequent Parts Of The Vineyards Intended For Repair Will Contain No More Than 8 Pieces, According To The Actual Needs. Permanent (Basic) Scope 1. Visual Research; Preliminary Assessment Of The Technical Condition Of The Rotor. 2. Cleaning, Washing, Drying Of The Rotor Elements. 3. Diagnostic Tests: Measurement Of Insulation Resistance And Winding Resistance, Determination Of The Factor: Dar Absorption, Pi Polarization, Sv Step Voltage, Dd Dielectric Discharge Or Incomplete Discharge Level, Voltage Tests, Measuring The Diameter Of The Commutator And Measurement Of The Width Of The Flags. 4. Mechanical Measurements: Checking Of Shaft Plugs, Nutrients - If Necessary Regeneration, Checking The Patency Of The Oil Channel, Threads, The Shaft Diameter Under The Bearings. 5. Disassembly Of: Insulation Bandages, Windings, Commutator, Insulating Cones, Ventilator (If Mounted). 6. Cleaning Of Pebbles And Core With Remnants Of Insulation And Varnish (Resin). 7. Checking The Condition Of The Insulation Of Subsequent And Commutator, Internal Cones And Insulation Ring. 8 9. Vacuum And Pressure Impregnation Vpi Rotor Windings And Thermal Hardening With Varnish (Resin), Bandaging The Rotor Windings And Insulation Cone, Painting With Insulating Varnish. 10. Commutator Processing, Ancient Regeneration - Turning, Biting. 11. Electrical Measurements. 12. Dynamic Balance Of The Rotor. 13. Implementation Tests, Voltage Test, Attempt At Increased Turnover. Additional Works For The Lkf 450 Rotor (Option) 1. Replacement Of The Rotor Windings (Recovery). 2. Replacement Of The Commutators Pressure Ring. 3. Replacement Of The Rotor Shaft. 4. Exchange Of Commutator. 5. Replacement Of External Insulation Cone. 6. Replacement Of Internal Insulation Cone. 7. Replacement Of The Insulation Ring. 8. Working Ventilation. 9. Replacement Of The Commutator Hub.
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