Class 1 (Chief Engineer) Engineering Management 📅 Jan 2021

Exam Question

The vessel in which you are the Chief Engineer is about to be laid up to 3 months for commercial reasons. All equipments and machinery onboard require to be preserved during the aly-up period for re-commissioning when required. Describe the actions you will take as Chief Engineer to prepare the Main Propulsion Diesel Engine for preserving during the lay-up period

Reference Answer

As Chief Engineer, the preservation of the Main Propulsion Diesel Engine for a 3-month lay-up period requires a systematic and well-documented approach. The primary objective is to prevent corrosion, seizure of moving parts, and degradation of systems to ensure a swift and trouble-free recommissioning. The procedure is categorized as a 'Hot Lay-Up' and will be executed in distinct phases.
### Phase 1: Preparatory Actions (Before Engine Shutdown)
This phase focuses on cleaning internal systems of potentially corrosive residues before the engine is stopped for an extended period.
* **Fuel System Purge:**

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