Procedure for Presenting an Auxiliary Engine for Survey by a Classification Society

When presenting an auxiliary engine for survey by a classification society, the process generally follows one of two methods:

1. Ship staff carry out the job and all reports are made and verified by the Chief Engineer and sent to the classification society for getting credited
2. The auxiliary engine is opened and all parts as required by the surveyor are kept ready for inspection along with the reports

In either case, the following procedure is followed:

• The date of the survey is to be intimated to the surveyor.
• All necessary spare parts must be checked and ordered beforehand.
• Record of all engine running parameters must be maintained and ready for inspection.
• The performance of the engine is taken before opening for a survey and recorded to be presented to the surveyor.
• The record of the last survey report and other necessary reports should be kept ready for inspection.

The engine is opened up as per the procedure and the following items are checked as per the requirement of the surveyor

• The cylinder head - opened, cleaned, valves lapped, fitted back and kept ready for inspection by the surveyor.
• Piston - removed, cleaned, condition checked, piston, ring checked and renewed if necessary. All clearances are measured and recorded.
• Conrod - Cleaned and checked, measurements of ovality and gudgeon pin taken and recorded. Serrations checked for cracks (DP test)
• Cylinder liner - cleaned and inspected, measured and checked and recorded.
• Big end bearing - check for any damage, renewed as per condition.
• Journal bearing and thrust bearing - condition checked and renewed accordingly.
• Crankshaft pin - check condition checked and oil grove checked.
• Check the condition of the camshaft and drive gear
• Overhaul and inspection of turbocharger
• Overhaul the attached pumps as required and suggested by the maker.
• Cleaning and inspection of the air cooler.
• Cleaning and inspection of the scavenge space. Special paint is applied if required.
• Sump cleaning is done.

Following inspection reports are prepared.

• Piston overhaul report.
• Conrod inspection report
• Liner calibration report

• After all inspections, the generator this box back and crankshaft deflection are measured and compared with previous records
• Engine tried out, alarms and trips tested
• Engine performance taken and recorded
• All reports along with photos are prepared and kept on standby.
• Reports include survey report, overall report of the engine, measurement report of the piston, conrod and liner, crankshaft deflection and engine performance report.

Three copies of the report are prepared and duly signed by the classification surveyor

• 1 copy is retained by the surveyor.
• 1 Copy sent to the company.
• 1 Copy placed in the ship survey file