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Re: harken (update) [Re: hobiegary] #375
07/09/01 04:24 PM
07/09/01 04:24 PM
Joined: Jul 2001
Posts: 851
US Western Continental Shelf
hobiegary Offline
old hand
hobiegary  Offline
old hand

Joined: Jul 2001
Posts: 851
US Western Continental Shelf
After placing my posting I decided that it was unfair to have made such a post without first contacting Harken about my trouble. So I did the second best thing; contacted them after making the post.
<br>
<br>They told me to bend the cage fingers on the furler. frown Or to send it in for repair (I pay postage) and that they would bend the fingers themselves if that is what it needs. If they decide that it is a bearing failure, they will replace it.
<br>
<br>Now, this is the important part. The sheaf on the top of my mast; the micro cheek block. (#233) The block has a Breaking Strength of 1200 pounds and a Safe Working Load of 200 pounds.
<br>
<br>Definitions:
<br>Breaking Strength - the point at which it will bust apart.
<br>Safe Working Load - the maximum load before it begins to destroy itself; bearing stop turning, etc.
<br>
<br>Now take into cosideration the load that is being applied to the block. First of all you have a sail with battens that weighs say 30 pounds. Ad to that, the friction of the sail luff to sail luff groove when the sail is at 99% hoist. That is some 29 feet of luff rubbing on two sides against the edge of the luff groove. Add to that the friction caused by the sail's luff that is binding around the underside of the entry opening in the luff groove. Now multiply by 2 because the halyard is making a 180 degree bend around the block, doubling the amount of load placed on the sheaf.
<br>
<br>It looks as though the block(s) may have failed due to being overworked.
<br>
<br>GARY<br><br>


Santa Monica Bay
Mystere 6.0 "Whisk" <--- R.I.P.
-- Have You Seen This? --
Re: harken [Re: hobiegary] #376
07/09/01 09:29 PM
07/09/01 09:29 PM
Joined: Jun 2001
Posts: 305
toronto, canada
B
basket.case Offline OP
enthusiast
basket.case  Offline OP
enthusiast
B

Joined: Jun 2001
Posts: 305
toronto, canada
i know the mystere mast well, and i can tell you that my sail goes up the groove with about half of the effort that you put into it.
<br> i was starting to feel alone in my problems.<br><br>

Re: harken [Re: basket.case] #377
07/17/01 06:53 AM
07/17/01 06:53 AM
Joined: Jun 2001
Posts: 305
toronto, canada
B
basket.case Offline OP
enthusiast
basket.case  Offline OP
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B

Joined: Jun 2001
Posts: 305
toronto, canada
thanks for everyone's imput.<br><br>

harken furlers [Re: hobiegary] #378
07/17/01 08:47 AM
07/17/01 08:47 AM
Joined: Jun 2001
Posts: 160
Connecticut
Eric Anderson Offline
member
Eric Anderson  Offline
member

Joined: Jun 2001
Posts: 160
Connecticut
Gary, Be carefull using a Harken furler on a mystere 6.0. The furlers are not recomended for 20 foot catamarans. (Per their catalog). I had one fail on me in Curacao causing a demasting.
<br>eric<br><br>

Re: harken [Re: hobiegary] #379
07/19/01 11:46 AM
07/19/01 11:46 AM
Joined: Jun 2001
Posts: 342
Lake Murray, SC,USA
Cary Palmer Offline
enthusiast
Cary Palmer  Offline
enthusiast

Joined: Jun 2001
Posts: 342
Lake Murray, SC,USA
How come you're still HobieGary, O' my beachcat brother, you Man of Mystere kinda guy? How bout MYSTERYGARY?, SOLOGary, EBAYGary . ... . ....
<br> (Just goofing wit cha, webcats are everywhere )
<br>MISTER LUCKY, MAN of MURKY
<br><br><br>Hobie 17
<br>"MISTER LUCKY"

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Re: harken [Re: basket.case] #380
08/04/01 06:07 PM
08/04/01 06:07 PM
Joined: Jun 2001
Posts: 305
toronto, canada
B
basket.case Offline OP
enthusiast
basket.case  Offline OP
enthusiast
B

Joined: Jun 2001
Posts: 305
toronto, canada
well, it happened again. three weeks ago i replaced my main haylard block with a new harken block (just to get the holes to line up. i hate drilling into carbon.) it is allready starting to fail. i can feel it comming apart, not running as free as it did just weeks ago. the heaviest wind i have been in since i put it on has been about 12 knots. i have a sky hook and a well lubed sail track. i am not exceeding the swl on this. what gives?
<br> the last block i took out was missing half of the shieve. the block is set up centered and plumb with the grove.
<br> why does my harken stuff hate me?<br><br>

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