Chain stopper installation

Discussion in 'Boatbuilding' started by matt4629, Jan 30, 2012.

  1. matt4629
    Joined: Aug 2006
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    Location: malaysia

    matt4629 New Member

    Hello, can anyone advise how to install a chain stopper(JIS F-2015). On our last vessel, we use the same type of chain stopper but when we suddenly released the chain for testing, the chain stopper cracked. :(
    So, will anyone can advise how to install the chain stopper properly to avoid the same thing happens. Please guide me with live photo if you have it. Thank you and may god bless you.
     
  2. michael pierzga
    Joined: Dec 2008
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    Location: spain

    michael pierzga Senior Member

    Good question...which fails first...the stopper ? or the chain ?

    I dont know the proper sequence in design. Remember, the stopper point loads and fatigues the chain .
     
  3. matt4629
    Joined: Aug 2006
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    matt4629 New Member

    well, if you can see that type of chain stopper, it have groove on its centerline. The crack occured on the groove and finally the stopper splitted.
     
  4. michael pierzga
    Joined: Dec 2008
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    Location: spain

    michael pierzga Senior Member

    Hmm...sounds overloaded or poorly installed, designed or used. Post a picture.
     
  5. matt4629
    Joined: Aug 2006
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    matt4629 New Member

    cracked stopper
     

    Attached Files:


  6. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Did you use the chain stopper for anchoring? Proper seamanship calls for a line, cable or chain to take the tension.
     
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