Report on Inspection of Main Propulsion Machinery

By: Second Engineer

Vessel: M.V. One

To: Engineering Superintendent, Alpha Company Pvt. Ltd., Denmark

Introduction

Following the recent purchase of M.V. Great by our company, I carried out a thorough inspection of the main propulsion machinery to evaluate its condition and ensure trouble-free operation. The inspection was conducted after following all safety protocols, including engine shutdown, turning gear engagement, and crankcase ventilation.

This report summarizes the findings from the inspection, covering mechanical components, auxiliary systems, automation, alarms, and safety arrangements.

1. Crankcase & Engine Components

• Lubricating Oil: Oil level and pressure verified; samples tested for water content, viscosity, and contamination. No unusual odor or discoloration noted.
• Crankshaft & Bearings: Crankshaft deflection measured against maker’s tolerances. Main, bottom end, and top end bearing clearances checked; all within limits. Bearing cap bolts verified for tightness.
• Connecting Rods & Crosshead: Bolts checked for tightness. Crosshead and guide shoes inspected for wear and proper lubrication.
• Stuffing Box: Condition satisfactory, no excessive leakage observed.
• Crankcase Relief Valve: Tested and found functional.
• Crankcase Condition: Inspected for cleanliness and absence of oil mist.
• Camshaft & Chain Drive: Timing verified; no abnormal wear. Chain tension and elongation within limits.

2. Pistons, Liners & Under-Piston Space

• Pistons & Rings: Checked for wear, sticking, deposits, and breakage. Free movement confirmed.
• Cylinder Liners: Inspected through scavenge ports; condition satisfactory, no scuffing or jacket leakage observed.
• Under-Piston Space: Clean, with no abnormal deposits or oil accumulation. Photographs taken for records.

3. Scavenge & Turbocharging System

• Scavenge Space: Clean, drains clear, flaps functional. Carbon deposits minimal.
• Auxiliary Blowers: Tested for correct operation.
• Scavenge Air Cooler: Clean, no leakage, efficiency acceptable.
• Turbocharger: Rotor condition, bearings, and efficiency inspected; no abnormal fouling. Exhaust manifold and equipment in good order.

4. Fuel & Lubrication Systems

• Fuel Pumps & Injectors: Pumps inspected, lead measured, injectors tested for spray pattern and pressure. Overhauled where necessary.
• Standby Pumps: FO supply, FO booster, LO, and JCW standby pumps tested for automatic starting; all found operational.
• Purifiers: FO and LO purifiers inspected for efficiency; Viscotherm unit tested.
• Seal Tank Oil: Checked visually for water ingress and contamination.

5. Exhaust System

• Exhaust Valves: Inspected for wear, seating, and correct operation.
• Exhaust Temperatures: Monitored and found within permissible limits.

6. Starting Air System

• Air Starting Valves & Distributor: Checked for leakage, wear, and correct timing.
• Indicator Cocks: Verified for free operation.

7. Automation & Remote Control Systems

• Remote Indications in ECR: Verified accuracy of readings.
• Remote & Local Control: Smooth operation confirmed. Telegraph lever response tested.
• Automation Systems: LO cooler, jacket water, and related automation tested for satisfactory function.

8. Safety Devices, Alarms & Emergency Systems

• LO Sump Alarms, FO Leakage Alarms, Slowdown, Overspeed Trips, Shut Down, and Emergency Stop Systems: All tested and confirmed functional.
• Oil Mist Detector (OMD): Sampling pipes clear; alarm tested and calibrated.
• Crankcase Door Gaskets & Seals: Found intact and leak-free.

9. Propeller & Shafting

• Propeller: Inspected for cracks, cavitation, and fouling; none observed.
• Clearances: Within permissible limits.
• Stern Tube Seals (Fwd & Aft): No leakage noted.
• Intermediate Shaft Bearings: Clearances and lubrication satisfactory.

10. Steering Gear System

• Steering Gear & Hydraulic Systems: Inspected for leaks, wear, and smooth operation.
• Alarms & Trips: Verified during test runs.

11. Performance Monitoring

• Indicator Cards: Obtained for each unit and analyzed for combustion quality and scavenge condition.
• Sensors & Thermometers: Local and remote sensors checked and calibrated.

Conclusion

The inspection confirmed that the main propulsion machinery and associated systems are in generally good working condition for an 8-year-old vessel. All critical systems, alarms, and automation devices were tested and found satisfactory.

Areas for continuous monitoring include:

• Bearing clearances.
• Turbocharger efficiency.
• Scavenge space cleanliness.

Routine lubrication oil and fuel oil analysis, along with timely preventive maintenance, will ensure reliable operation. A follow-up inspection is recommended after the vessel’s first trading voyage under our management to evaluate in-service performance.

Submitted by:

Second Engineer

M.V. One

[Name & Signature]