[AT] OT - Question about chain
Steve Offiler
soffiler at gmail.com
Tue Nov 26 16:34:42 PST 2013
Chain for me. I have seen nylon strap break, and when it is stretched, it stores a tremendous amount of energy. It is a GIANT elastic band. I watched it narrowly miss a man's head, and if he wasn't so lucky, it would have easily decapitated him. When a chain snaps, it flies a bit, but mostly heads for the ground. Substantially less drama because it doesn't stretch much therefore doesn't store much energy.
I have broken chain more times than I care to admit. I typically use "trucker chain" which is the higher-grade 5/16". It works fine with my 23HP Ford 1520 (1991, Japanese-built). But when I got the JD 440 crawler, I sort of neglected to upgrade my chain, and snapped 2 or 3 while trying to get a job done. I now use 3/8" chain with the crawler.
SO
Sent from my iPhone
On Nov 26, 2013, at 3:41 PM, Len Rugen <rugenl at yahoo.com> wrote:
> When you put tension on a tree with a chain, as soon as it moves a little, the chain goes slack. I have some 2" wide nylon webbing, my tractor will probably stretch a 50 ft. piece 10 ft or more. When the tree is cut, it gets a good 10' tug from the stretch.
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> If you're pulling a tree/log and it catches a stump, you will break a chain before you can react, nylon will give you enough time to clutch.
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> DO NOT mix nylon and chain, don't use metal hooks on nylon. I know some come that way, but take some precaution so if something breaks, the metal hook doesn't become a nylon powered projectile.
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> Len Rugen
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> rugenl at yahoo.com - May also be used when responding as rugenl at prairiehome.k12.mo.us
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> On Tuesday, November 26, 2013 2:01 PM, Stephen Offiler <soffiler at gmail.com> wrote:
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> Why? Please explain.
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> SO
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> On Tue, Nov 26, 2013 at 2:08 PM, <Recentjester at aol.com> wrote:
>
>> nylon straps are the way to go
>>
>>
>> In a message dated 11/26/2013 1:07:15 P.M. Central Standard Time,
>> meulenms at gmx.com writes:
>>
>> Hi guys, I need to upgrade the rag tag bunch of chains I have around the
>> place and I'm looking for some input. I generally use the chains to
>> pull on trees that are hung up on others and to dangerous for me to cut.
>> I have some 1/4 grade 30 chain that I have pulled on hard enough to
>> deform, and some 5/16" grade 30 that has held up well, but I only have a
>> short piece of that. I'm looking at 1/4" grade 43 high test that has a
>> working strength of 2600 lbs twice the 1/4 grade 30. I use either my
>> Massey 255 or my pickup depending where the tree is. Do you guys think
>> the 1/4" grade 43 is enough or should I bump up to 5/16" $$. Any input
>> would be appreciated.
>> Thanks,
>> Mike M
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