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Discussion Forum

Saftey w/ snap coupler

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02-09-2003 09:15:30

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A friend of mine was plowing in the same field as his dad (dad w/ snap coupler plow) the bottom latch was worn like many of ours---the top lift arms made a pivot point pinning dad between the plow and steering wheel to the point he had the foot clutch in stopping the motion of the tractor but pinned to tight to do anything other than wait for help- not so much as a trip to the hospital but a real wake up call on the smaller plows / and similar snap coupler imp. One of those freak things, I recall a friend of mine pushing that dumb little lever down with his foot while being bored to death plowing a big field-- OK it wasn't a friend it was me, but I just must never did it while not under a dead pull, letting it unlatch. I was only 8 yrs old at the time so give me a break.

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02-11-2003 10:01:27

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 Re: Saftey w/ snap coupler in reply to Dave, 02-09-2003 09:15:30  
I'm with some of the others, I've tried to get mine unlatched, and with any pressure on it at all it just won't. I usually unhitch by putting my foot on the lever and then backing up. I do intend to check mine a little more often though.

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02-10-2003 15:57:28

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 Re: Saftey w/ snap coupler in reply to Dave, 02-09-2003 09:15:30  
As a safety procedure to prevent this from happening, attach a short chain to the tongue of the plow and secured it around the funnel where the eye and hook connect. Tom

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02-11-2003 06:39:13

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 Re: Re: Saftey w/ snap coupler in reply to Tom, 02-10-2003 15:57:28  
I had never heard of this happening untill recently myself. In my experience, the coupler cannot be unhooked when there is a load against it and I wonder if rusted up, half latched couplers are the blame? After reading about this a few months ago on the other A-C page I decided to add a safety chain to my #53 plow before we use it.

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02-11-2003 10:46:54

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 Re: Re: Re: Saftey w/ snap coupler in reply to Butch(OH), 02-11-2003 06:39:13  
I just taled to my friend whos dad was in a pinch, or had a plow on his back, so to speak. He said after they tore the bottom latch apart one spring was shorter than the other--tractor was purchased new. (TOP LINKS WERE OLD STYLE) It happend as he droped the plow, after just crossing a water way (with plow up). He has never heard of this happening before and since. And let me tell you around him it is AC OR NO SEE. Who but him buys a orange teddy for his wife for valintines day.

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02-09-2003 20:08:10

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 Re: Saftey w/ snap coupler in reply to Dave, 02-09-2003 09:15:30  
Any change to a "snap-coupler" should have included the release type snap couplers on the lift arms....THAT was the REAL safety part...!!

Always check, to see that the lift arms will release the implement...they should release with very little pull on them ( like, if the lower snap-coupler released).... The OLD WD-type lift arm attachments were a solid attachment with a set-screw...and should be up-dated, to the release-type...

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Dave K (Fl)

02-09-2003 12:08:22

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 Re: Saftey w/ snap coupler in reply to Dave, 02-09-2003 09:15:30  
Have used WD's since the 50's with snap coupler. Never had the hitch come loose. Never heard of this happening till recently when we have more "weekend farmers" using the older equipment. I think if your release chain is too tight or some such it could happen? I have a 1948 WD I plow with now that was converted to the snap coupler in the fifties. I agree with Eldon, I have to back up and release pressure on the "hook" before I can release it. Of course on rough ground the hitch may be alternatly tightening and loosening in the hook. So if your release chain is a bit tight it might release.

Set it up right, should be okay


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02-09-2003 16:43:46

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 Re: Re: Saftey w/ snap coupler in reply to Dave K (Fl), 02-09-2003 12:08:22  
Last year the snap coupler let my draw bar loose while pulling a baler. Sure was glad that I was leaving the field and not baling when it happened. Things had worn to the point that there was to much slack everwhere A little welding took care of things though.

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02-09-2003 10:02:21

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 Re: Saftey w/ snap coupler in reply to Dave, 02-09-2003 09:15:30  

The "hook" is designed to latch tighter under load.....I usually have to back up the tractor before releasing the hook just for this reason. I don't feel that it is possible for a plow to come un-hooked under load if everything is adjusted and properly mounted to begin with. I've never had a plow come unhooked, but have had the hands come unlatched many times....

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