Inspecting Standing Rigging

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Inspecting Standing Rigging
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Chris

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Since: Jun 13, 2005
Posts: 39

(Msg. 1) Posted: Tue May 30, 2006 1:27 pm Post subject: Inspecting Standing Rigging Archived from groups: rec>boats>building, others (more info?)

What specific signs of wear am I looking for in the swages of the standing rigging? I check for any mechanical damage I can see, especially cracks. Are there other things to look for? There usually is slight surface rust on the stainless, which I scrub off w/ WD40 to check for cracks. Thanks! Chris >> Stay informed about: Inspecting Standing Rigging

tsmwebb

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Since: May 27, 2006
Posts: 25

(Msg. 2) Posted: Tue May 30, 2006 1:38 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Run your hand over the wire. It should be perfectly round but if there is a failure, even inside the swage, sometimes the wire distorts. Dye testing is always a good idea. -- Tom. >> Stay informed about: Inspecting Standing Rigging

Chris

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Since: Jun 13, 2005
Posts: 39

(Msg. 3) Posted: Tue May 30, 2006 2:45 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

How does dye testing work? Thanks! >> Stay informed about: Inspecting Standing Rigging

Chris

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Since: Jun 13, 2005
Posts: 39

(Msg. 4) Posted: Tue May 30, 2006 2:46 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

How does dye testing work? Thanks! >> Stay informed about: Inspecting Standing Rigging

Chris

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Since: Jun 13, 2005
Posts: 39

(Msg. 5) Posted: Tue May 30, 2006 3:37 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

How does dye testing work? Thanks! >> Stay informed about: Inspecting Standing Rigging

Chris

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Since: Jun 13, 2005
Posts: 39

(Msg. 6) Posted: Tue May 30, 2006 5:55 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

So how does this dye test work? >> Stay informed about: Inspecting Standing Rigging

Paul Cassel

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Since: Apr 08, 2006
Posts: 8

(Msg. 7) Posted: Tue May 30, 2006 6:46 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Chris wrote: > What specific signs of wear am I looking for in the swages of the > standing rigging? I check for any mechanical damage I can see, > especially cracks. Are there other things to look for? > There usually is slight surface rust on the stainless, which I scrub > off w/ WD40 to check for cracks. > Cracks are about all you can see. If you want a real inspection you need to use a dye process which shows small cracks better. >> Stay informed about: Inspecting Standing Rigging

Evan Gatehouse

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Since: Apr 20, 2005
Posts: 39

(Msg. 8) Posted: Tue May 30, 2006 9:31 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Chris wrote: > What specific signs of wear am I looking for in the swages of the > standing rigging? I check for any mechanical damage I can see, > especially cracks. Are there other things to look for? > There usually is slight surface rust on the stainless, which I scrub > off w/ WD40 to check for cracks. > > Thanks! > > Chris Use a 8x loupe to inspect for cracks at the swages. You'll see them much sooner. Check after scrubbing Evan Gatehouse >> Stay informed about: Inspecting Standing Rigging

John Cassara

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Since: Jul 14, 2004
Posts: 54

(Msg. 9) Posted: Tue May 30, 2006 9:52 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Very Basic...........The dye gets trapped in the crack and causes the crack to stand out better. "Chris" wrote in message > > So how does this dye test work? > >> Stay informed about: Inspecting Standing Rigging

cavelamb

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Since: May 19, 2006
Posts: 11

(Msg. 10) Posted: Wed May 31, 2006 12:19 am Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Chris wrote: > How does dye testing work? > > Thanks! > Probably not too well on cables. The dye gets between the strands and messes up the mess. Use TOWEL for the first pass? Not your hand... >> Stay informed about: Inspecting Standing Rigging

dbohara

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Since: Nov 29, 2005
Posts: 108

(Msg. 11) Posted: Wed May 31, 2006 10:44 am Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

cavelamb wrote: > John Cassara wrote: > > Very Basic...........The dye gets trapped in the crack and causes the crack > > to stand out better. > > > > > > "Chris" wrote in message > > > > > >>So how does this dye test work? > >> > > > > > > > But cables that have multiple strands will always look "failed"... > The dye gets trapped between the strands. I had thought the 20 yrear old rigging on my 28' S2 was good because it had no sharp spots and seemed to look good with close visual inspection. BUT, the mast was down and I had read an article in "Seaworthy" about rigging inspection with a magnifier so I did this. I was shocked to find cracks in ALL of the lower swages. At first they were hard to find but soon I learned that they are almost always under a small rusty looking spot which you remove with fine sandpaper.. All the cracks ran lengthwise in the swages and were in the body of the swages rather than at the edge where the wire goes in. Being curious, I decided to do dye penetrant testing. This showed absolutely nothing at all as the dye would not go into the cracks for some reason. The cracks were clearly visible under a 10X loupe and were real cracks. I replaced all of the rigging and lifelines. That was close. >> Stay informed about: Inspecting Standing Rigging

Chris

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Since: Jun 13, 2005
Posts: 39

(Msg. 12) Posted: Wed May 31, 2006 11:47 am Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

So the lower ones are more likely to derteriorate earlier, as they are 'open' side up and in constant contact w/ saltwater that can creep into any open caillary? Good, they are much easier to check. Evan Gatehouse wrote: > Chris wrote: > > What specific signs of wear am I looking for in the swages of the > > standing rigging? I check for any mechanical damage I can see, > > especially cracks. Are there other things to look for? > > There usually is slight surface rust on the stainless, which I scrub > > off w/ WD40 to check for cracks. > > > > Thanks! > > > > Chris > > Use a 8x loupe to inspect for cracks at the swages. You'll see them > much sooner. Check after scrubbing > > Evan Gatehouse >> Stay informed about: Inspecting Standing Rigging

cavelamb

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Since: May 31, 2006
Posts: 12

(Msg. 13) Posted: Wed May 31, 2006 4:37 pm Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

John Cassara wrote: > Very Basic...........The dye gets trapped in the crack and causes the crack > to stand out better. > > > "Chris" wrote in message > > >>So how does this dye test work? >> > > > But cables that have multiple strands will always look "failed"... The dye gets trapped between the strands. >> Stay informed about: Inspecting Standing Rigging

noexpert

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Since: Aug 30, 2005
Posts: 5

(Msg. 14) Posted: Thu Jun 01, 2006 12:25 am Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)

Are solid stainless steel rods any less vulnerable? What alloy is used for major standing rigging; there must be some less prone to chloride/stress attack, or? I worked with some higher than 316 plus extra titanium alloy(32?) for seawater boiler; it was a much better choice than regular 316. I am not sure if this alloy is being offered in steel rope shape. Any one knows more about it? thanks >> Stay informed about: Inspecting Standing Rigging

Evan Gatehouse

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Since: Apr 20, 2005
Posts: 39

(Msg. 15) Posted: Thu Jun 01, 2006 12:25 am Post subject: Re: Inspecting Standing Rigging [Login to view extended thread Info.] Archived from groups: rec>boats>building (more info?)

noexpert wrote: > Are solid stainless steel rods any less vulnerable? > What alloy is used for major standing rigging; there must be some less prone > to chloride/stress attack, or? > I worked with some higher than 316 plus extra titanium alloy(32?) for > seawater boiler; it was a much better choice than regular 316. > I am not sure if this alloy is being offered in steel rope shape. > Any one knows more about it? > thanks Most sailboat rigging is 304. Some is 316 but it's a bit weaker than 304 (about 10%). Rod rigging is usually Nitronic 50. More corrosion resistance but no warning of failure like broken strands. About twice the cost of wire rope so it's restricted to racing boats Evan Gatehouse >> Stay informed about: Inspecting Standing Rigging

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