N°DescriptionER/Propultion/Systems1Main Engine Starboard and Portside: 5,000-hour maintenance with replacement of faulty control units and analog engine display units (cabin, flybridge). One starboard engine display unit is inoperative (replacement). Test the entire alarm system, main engine control unit, left/ right. MODEL: MAN D2842LE409 Serial Number 1: 7010667160 Serial Number 2: 7010667161 1. Perform periodic maintenance. a) Oil change b) Fuel filter replacement c) Chassis fuel filter replacement d) Oil filter replacement e) Fuel separator filter replacement f) Air filter replacement g) V-belt replacement h) Zinc anode replacement i) Impeller replacement j) Coolant replacement k) Crankcase filter replacement or cleaning 2. Complete disassembly of marine water pumps and replacement of the repair kit in the workshop. 3. Complete disassembly of freshwater pumps and replacement of the repair kit in the workshop. 4. Cylinder head removal and resurfacing. Valve and valve guide replacement. 5. Valve adjustment. 6. Fuel pump and injector removal and reassembly in the workshop. 7. Removing and chemically cleaning the intercoolers in the workshop, replacing the necessary O-rings, gaskets, and bolts. Conducting pressure tests. 8. Removing 8 turbines and sending them to the workshop. 9. Testing the turbine housing for leaks (oil seals). 10. Removing and chemically cleaning the seawater coolers in the workshop, checking the sealing plates. 11. Removing and repairing two starters and two generators. 12. Replacing thermostats. 13. After removing the cylinder head, measure the piston height, check the cylinder ovality, and compile a report. 14. Removing the oil coolers and replacing the gaskets.2Additional work on the engine. - Replacement of crankcase gaskets - 2 pcs.
Eliminate fuel and lubricant contamination from entering the diesel generator exhaust system (during operation, oil stains appear outside the DG-1 and DG-2 engines) (reasons unknown)31. Perform routine maintenance: a) Oil change b) Oil filter change c) Fuel filter change d) Fuel separator filter change e) Crankcase ventilation filter change f) Zinc anode replacement g) Coolant change h) V-belt replacement 2. Remove cylinder heads and send them for resurfacing. 3. Remove turbines and send them to a workshop. 4. Test turbine casings (oil seals) for leaks. 5. Remove marine water pumps and replace repair kits. 6. Removing the seawater coolers and chemically cleaning them in the workshop, replacing the necessary O-rings, gaskets, and bolts. 7. Removing the freshwater pump and replacing the repair kit. 8. Removing the generators and sending them to the workshop for maintenance. 9. Removing the starters and sending them to the workshop for maintenance.4Additional Diesel Generator Costs - Exhaust Elbow Replacement - 2 pcs. - Inlet Valve Oil Seal - 6 pcs. - Exhaust Valve Oil Seal - 6 pcs. - Seawater Intake Sensor - 2 pcs. - Valve Oil Seals - 12 pcs. - O-Ring - 6 pcs. - Full Casing Insulation - Stainless Steel Lower Engine Mount Tray (Inox) - 2" (51 mm) Exhaust Hoses - 1" (25 mm) Seawater Hoses - Clamps - Corroded Sheets and Pipes: Welded and Static Painted5Servicing of the starboard and port alternators: - Dismantling the generator rotor and stator. - Cleaning in the workshop using an electric cleaner. - Taking measurements of diodes and other electronic boards. - Cleaning the generators and performing insulation tests. - Installing the generators and connecting cables. - Testing and commissioning.

6Replacing exhaust pipe gaskets.

•Removing the exhaust pipes from the vessel. •Lowering the pipes from the vessel and cleaning them. •Replacing the gaskets. •Removing the exhaust pipe cooling casing and cleaning it. •Replacing the bolts with new ones.

7Removing the cooling elbows of the main engine exhaust system and replacing them with bronze elbows8Replacing the exhaust gas insulation of the main engine9Propellers: - Dismantling/Installation - Delivery to the workshop for inspection (transportation costs) - Flaw detection - Propeller balancing - Polishing10Propeller shafts: - Dismantling/Assembly - Delivery to the workshop for inspection (transportation costs) - Flaw detection - Runout testing - Shaft cleaning11Steering (rudder stock): - Removal / Installation12Shaft Bushings: Removing Old Bushings Installing New Bushings13List of materials and work required for the driveshaft: - Universal joint 72*185, original - Universal joint maintenance - Shaft repair, maintenance, and balancing - Fabrication of a broken shaft seal14Materials and labor for the steering system: - Steering system sealing ring - Manufacturing of steering shaft bearings - Manufacturing of steering wheel couplings15Replacing stainless steel hydraulic steering hoses16Shaft support bracket bearing adjustment and in-situ machining (IN-SITU)17Vibration analysis and laser measurement of the shaft line system: - Inspection and report on the vibration analysis of the main engine, transmission, and structure before and after.18Vibration analysis and laser measurement of the propeller shaft line system: - Inspection and report on laser measurement of the propeller shafts to the engine.19Vibration analysis and laser measurement of the propeller shaft system: - Inspection and report on the laser inspection of the propeller shaft bearing axis.20Repair of the steering unit (bow)

Electric motor disassembly, bearing replacement, sandblasting, painting, and workshop testing. • Screw removal, fabrication of new zinc anodes. • Gearbox disassembly, seal replacement, bearing replacement, shaft inspection, and gearbox oil change.