Exam Question
(a) Describe onboard Main Air Compressor maintenance schedule. (8)
(b) Describe malfunctions observed on Main Air compressor. (8)
Class 4 (4th Engineer)
MEP
📅 May 2023
Reference Answer
### (a) Onboard Main Air Compressor Maintenance Schedule
A systematic maintenance schedule based on running hours or a calendar basis, whichever comes first, is crucial for the reliability and safety of the Main Air Compressor. The schedule is typically divided into routine checks and major overhauls as per the manufacturer's recommendations.
**1. Daily / Running Checks (Every 4-8 Hours):**
* **Crankcase Lubrication:** Check lube oil level in the sump via the sight glass or dipstick. Top up if necessary with the correct grade of oil.
A systematic maintenance schedule based on running hours or a calendar basis, whichever comes first, is crucial for the reliability and safety of the Main Air Compressor. The schedule is typically divided into routine checks and major overhauls as per the manufacturer's recommendations.
**1. Daily / Running Checks (Every 4-8 Hours):**
* **Crankcase Lubrication:** Check lube oil level in the sump via the sight glass or dipstick. Top up if necessary with the correct grade of oil.
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