Broken Main sheet/ vang

Sep 29, 2008
50
hunter 240 Dewey beach, De
Well it happened again. The pin that attaches the snap shackle to the main sheet(which is really a boom vang) broke again. I posted a warning back in 2008 about the same thing. Make sure to check this pin. Not as dangerous as when sailing, but if it had let go while raising the mast, somebody could have gotten hurt, not to mention the damage it would cause.
 
Feb 26, 2004
23,170
Catalina 34 224 Maple Bay, BC, Canada
Gee, just another reason to not use snap shackles. Use captive D rings, no pins to lose.
 

Doug J

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May 2, 2005
1,192
Hunter 26 Oceanside, CA
This is the second time this problem has been brought in the last week. Are you saying the pin where the red arrow is pointing worked itself loose or actually broke? Or was it the clevis pin with ring ding below it?

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Feb 18, 2011
335
Hunter 260 Cave Run Lake, KY
I think it is the swivel pin that breaks. Same thing happened on my 240 a couple of years ago while sailing. The snap shackle got jammed on the U-bolt attachment on the cockpit floor, and was pulled at 90 degrees while tacking (I didn't take up the slack in the sheet).
There is a photo in my old post here:
http://forums.sailboatowners.com/index.php?threads/240-broken-mainsheet-block.154480/#post-1042869
I sent the block back to Schaefer for repair. Used my vang as a replacement while it was gone.
 
Nov 8, 2010
11,386
Beneteau First 36.7 & 260 Minneapolis MN & Bayfield WI
I think it is the swivel pin that breaks. Same thing happened on my 240 a couple of years ago while sailing. The snap shackle got jammed on the U-bolt attachment on the cockpit floor, and was pulled at 90 degrees while tacking (I didn't take up the slack in the sheet).
There is a photo in my old post here:
http://forums.sailboatowners.com/index.php?threads/240-broken-mainsheet-block.154480/#post-1042869
I sent the block back to Schaefer for repair. Used my vang as a replacement while it was gone.
That would sound more like an operational issue than a defect. ANY shackle will break if a 90 degree load is applied to it.

To avoid this can you put a holder spring under it? This spring is designed to hold the offending part upright, to avoid such an problem.

 
Apr 27, 2010
1,279
Hunter 23 Lake Wallenpaupack
Don't think I'd use a snap shackle to attach the sheet to the boom or the boat - I'd use a "regular" shackle. Even if not broken, the pins can come loose. Is there any reason you have to have the convenience of being able to pull that pin to release it? I'd think that the sheet (or vang - not sure what you mean by that) would rarely have to be disconnected?
 
Jun 8, 2004
10,531
-na -NA Anywhere USA
May I chime in? The halyards were supplied with regular shackles vs. the snap shackle for the very above reasons. The Schaeffer boom vang supplied for the mainsheet snap shackle was attached directly to the block, not an additional ring, so the bending was never really an issue as the one Caverun pointed out but it was the actuator pin when some use or age was on them would not catch and warned my customers about looking at that when attaching it to the mast raise pole and pad eye in the anchor well. However Jackdaw is absolutely correct about the attaching pin to the ring in a snap shackle. Just like anything, look at that hardware everytime when attaching was part of the training for all my customers.

Caverun, I look forward to meeting you some day young man. I probably met you as a child.
Jackdaw, please teach racing to all and encourage the traveler if it is long enough but a decision when trailering all the time.
I wish I could go with you sailing from time to time. Distance is an issue but you are welcome anytime to stay at my home as we have a hook to hang up your coat on which my grandmother would say.

Crazy Dave
 
Jun 5, 2010
1,133
Hunter 25 Burlington NJ
I guess this sells me against having a snap shackle on the traveler end of the mainsheet tackle in order to use the boom as a 'cargo loader' (like for the rolling toolbox in the cockpit) by swinging it over to the dock. I'll just get used to disconnecting the mainsheet's shackle and adding a carbiner hook for the cargo each time,
 
Jun 5, 2010
1,133
Hunter 25 Burlington NJ
Jackdaw's profile photo is the best, owing to his having on the right kind of PFD with safety harness included.



Way to set a good example! :dancing:
 
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