3 Dynamic Winch Brake Test
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.1093 – Guidelines for Periodic Servicing and Maintenance of Lifeboats, Launching Appliances and On-Load Release Gear – (Adopted on 17 June 2003)1 - Annex - Guidelines for Periodic Servicing and Maintenance of Lifeboats, Launching Appliances and On-Load Release Gear - Appendix - Specific Procedures for Maintenance and Servicing - 3 Dynamic Winch Brake Test

3 Dynamic Winch Brake Test

  3.1 Annual operational testing should preferably be done by lowering the empty boat. When the boat has reached its maximum lowering speed and before the boat enters the water, the brake should be abruptly applied.

  3.2 Five-yearly operational testing should be done by lowering the boat loaded to a proof load of 1.1 times the maximum working load of the winch, or equivalent load. When the boat has reached its maximum lowering speed and before the boat enters the water, the brake should be abruptly applied.

  3.3 Following these tests, the brake pads and stressed structural parts should be re-inspected.

Note In loading the boat for this test, precautions should be taken to ensure that the stability of the boat is not adversely affected by free surface effects or the raising of the centre of gravity.

Parent topic: Appendix - Specific Procedures for Maintenance and Servicing
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