Exam Question
(a) Describe the principle of a coil-operated brake suitable for winches and other deck machinery
(b) Explain with suitable sketches how the windlass is relieved of strain when riding at anchor
Class 2 (2nd Engineer)
MEKG
📅 Jan 2021
Reference Answer
(a) Coil-Operated Brake for Winches and Deck Machinery
A coil-operated brake for winches and deck machinery is designed to automatically adjust the braking force in response to changes in the load on the mooring line. This system ensures the correct force is applied between the brake band and the winch drum at all times.
The core principle is that when an additional load is applied to the mooring line, the line stretches, which in turn loosens the tightening mechanism. This loosening action automatically causes the brake to apply the correct force, maintaining constant tension. This has the significant advantage of being a self-adjusting system , meaning that once it's set, there's no need for a crew member to periodically re-apply the recommended torque. The brake is typically released using a hydraulic lever.
(b) Relieving Strain on the Windlass when Riding at Anchor
A coil-operated brake for winches and deck machinery is designed to automatically adjust the braking force in response to changes in the load on the mooring line. This system ensures the correct force is applied between the brake band and the winch drum at all times.
The core principle is that when an additional load is applied to the mooring line, the line stretches, which in turn loosens the tightening mechanism. This loosening action automatically causes the brake to apply the correct force, maintaining constant tension. This has the significant advantage of being a self-adjusting system , meaning that once it's set, there's no need for a crew member to periodically re-apply the recommended torque. The brake is typically released using a hydraulic lever.
(b) Relieving Strain on the Windlass when Riding at Anchor
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