Hi Josh- great info! On Oct 5, 2015, at 10:08 AM, Josh Muckley via CnC-List <cnc-list@cnc-list.com> wrote:
> David, > > The screws which Joel mentioned are, from my experience, a type of cap screw. > You might want to remove them one at a time and lube them with tef-gel, or > anti-seeze. If they get stuck they break. If they are over torqued they > break. If they are not fully tightened or the springs are old or the line is > too small of a diameter then line won't stay in. > > As long a the above three conditions are met then the problem you are having > is with the friction on the drum. It sounds like those three conditions are > met since you only experienced this problem in heavy winds. As mentioned > extra wraps should help add friction. Additionally a machine shop can > re-knurl the drum. You can also add a sleeve to the jib sheet. If you have > the crew to do so, try having them not use the self-tailer to winch in on the > tacks. See how much pressure the tailer needs to apply before the winch > slips. The tailer should only have to apply moderate tension. If they are > really pulling you need another wrap (or 2). If you have 4 or 5 wraps and > the winch still slips then you need more friction. Sleeving the sheet is > probably a little cheaper and will make the line better on the hand. You can > also do it yourself. If you still find that it takes 4 or more wraps I would > start looking for a machine shop. I have one in mind if you are interested. > We had 4 wraps on the drum so I am thinking friction on the drum. I don’t know what re-knurling means and don’t know if any shop would know how to do this. Also, I have not found a good machine shop in my area. What shop did you have in mind? What would you sleeve the sheet with? Dave > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > _______________________________________________ Aries 1990 C&C 34+ New London, CT
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