Exam Question
(a) Describe with suitable schematic diagrams inspections and checks to be conducted on Tail Shaft, highlighting areas to be attended. (10)
(b) Describe the procedure for repair in way of shaft conical area. (6)
Class 4 (4th Engineer)
MEP
📅 Jul 2024
Reference Answer
### (a) Inspections and Checks on Tail Shaft
A comprehensive inspection of a tail shaft is typically conducted during a scheduled dry-docking for a Tail Shaft Survey as mandated by the vessel's Classification Society. The procedure involves withdrawing the shaft for full examination.
**1. Preparation and Withdrawal**
* **Propeller Removal**: The propeller cap is removed, and the propeller securing nut (e.g., Pilgrim Nut) is slackened and removed. The propeller is then hydraulically pushed off the shaft's conical section.
A comprehensive inspection of a tail shaft is typically conducted during a scheduled dry-docking for a Tail Shaft Survey as mandated by the vessel's Classification Society. The procedure involves withdrawing the shaft for full examination.
**1. Preparation and Withdrawal**
* **Propeller Removal**: The propeller cap is removed, and the propeller securing nut (e.g., Pilgrim Nut) is slackened and removed. The propeller is then hydraulically pushed off the shaft's conical section.
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