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How does a trip plow work?

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AGEN

05-04-2002 14:35:35




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How eaxactly do the mechanics of a trip type plow work? What actually "trips"? I'm sure to lots of you, this might sound like a dumb question, but that'll just make it easy to answer! Thanks fellers.




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Sometimes They Don't

05-06-2002 07:56:51




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
And sometimes they are not very forgiving in tough plowing.



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Jerry A.

05-05-2002 17:52:15




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
A typical moldboard trip plow has a neat and simple set of "cams" built into a front wheel assembly that will lift the height of the plow frame when a lever is yanked once. When you yank on the lever again (i.e., pull on a rope connected to this lever, done from the tractor seat), the plow will then lower into the ground and commence plowing. All this is done while you are moving. Very ingenious mechanism!

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Tony P

05-06-2002 04:13:23




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 Re: Re: How does a trip plow work? in reply to Jerry A., 05-05-2002 17:52:15  
Oops! I am a rookie too and just gotthe trip plow I bought down off my trailer and was playing with it in the front yard to see how it worked (not hooked up to anything). Now I know I should not have tripped it there, as I will have to tear up a little yard to get it back up.

It is pretty cool to go online planning to post a question and already have it asked and answered before you get there.

On a side note, is there any place to get parts for a JD trip plow. Specifically, The big spring is broken and one of the lever's pull rods and small lever handle are missing.
Thanks!

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DaveH

05-08-2002 14:34:48




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 Re: Re: Re: How does a trip plow work? in reply to Tony P, 05-06-2002 04:13:23  
You can jack the plow up and rotate the wheel so that it is in the raised position again. Sure beats having to fix the yard.



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DaveH

05-08-2002 14:34:00




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 Re: Re: Re: How does a trip plow work? in reply to Tony P, 05-06-2002 04:13:23  
You can jack the plow up and rotate the wheel so that it is in the raised position again. Sure beats having to fix the yard.



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Jerry S

05-06-2002 15:11:30




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 Re: Re: Re: How does a trip plow work? in reply to Tony P, 05-06-2002 04:13:23  
I got my big spring from the local good hardware store by taking the old one in and finding a mate. Auto parts places can sometimes help too. The handles for the levers you might have to find another horse or early tractor implement to get one from. THe rod that usually breaks can be replaced with regular rod. getting the bends right takes some heat and patience. I have been known to take some baling wire to them just like the farmer would have 80 years ago. Gives the piece some character. If you want the rod bent for you, find a local blacksmith or horseshoer and they can fix you up with a pattern.

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JMS/MN

05-05-2002 20:16:23




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 Re: Re: How does a trip plow work? in reply to Jerry A., 05-05-2002 17:52:15  
The same idea was used on grain drills, field cultivators, and the WC Allis tractor had a similar unit mounted on the tractor to raise and lower the mounted cultivator. Only drawback to the system was the requirement of forward motion to the machine to activate the lift. Hydraulics were a big advance because while the tractor was getting stuck instead of going forward, the machine could be lifted, often soon enough to let the tractor pull out of the mudspot.

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Craig MO

05-05-2002 17:46:34




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
We used to have and old disc plow we used to plow stump ground with don't know what brand or anything. When you pulled trip rope to raise it pulled an arm with a roller on it. This roller was pulled out of what I would a cam. The cam turned allowing the plow to be raised or lowered the roller went back in the cam to hold it in raise or lower position. The cam was mounted to the drive wheel and there was a type of sprag clutch to engage the mechanism. In our state we have Amish up at Jamesport and they all use trip rope machinery. If there are any Amish or Menoniteswhere you are from they will be more than happy to show you equipment and how it works.

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AGEN

05-05-2002 18:17:04




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 Re: Re: How does a trip plow work? in reply to Craig MO, 05-05-2002 17:46:34  
Thanks. I think I got the idea. I'm in Southcentral Texas, and don't recall seeing any Amish in Texas, but if I see any I'll ask 'em. :) Thanks for the info.



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Poppin' Johnny

05-05-2002 07:11:14




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
Are you talking about when like you hit a big rock, or when you pull a rope to lift/lower it?



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Poppin' Johnny

05-05-2002 07:11:00




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
Are you talking about when like you hit a big rock, or when you pull a rope to lift/lower it?



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AGEN

05-05-2002 14:25:53




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 Re: Re: How does a trip plow work? in reply to Poppin' Johnny, 05-05-2002 07:11:00  
To lift/lower it.



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Craig MO

05-04-2002 19:14:28




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
Was just wondering if you wanted to know how a trip molboard shank works or the old style trip machines that when you pull the rope the plow comes up out of the ground. Jerry gave description of a trip shank.



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AGEN

05-04-2002 21:35:15




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 Re: Re: How does a trip plow work? in reply to Craig MO, 05-04-2002 19:14:28  
I'm interested in both. I'd like to know how the type that is tripped to come up out of the ground works. I had an idea of how the trip shank works and am interested in the other type too. How does it work?



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Jerry (AL)

05-04-2002 16:21:50




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
Man, one click of the button and post it four times?



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Jerry (AL)

05-04-2002 16:20:39




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
I have a JD trip plow. When there is extreme pressure on the point, the plow will trip. It actually rolls "down" with the pressure. In looking at the design, it looks like there is a notch in the top of the shaft that the plow mounts to. There is a roller on an arm that sits in the hole. I assume there is spring pressure on the roller. Extreme pressure will make the roller roll "out" of the notch and the plow will trip. You then back up and it will click back in and you are ready to go again. Saves breaking the plow to bits hitting rocks and such.

My problem is the plow has tripped so much over the years, very hard ground will trip one of the three. I need to clean up the notch a little. The edges of the notch are rounded a little.

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Jerry (AL)

05-04-2002 16:20:31




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
I have a JD trip plow. When there is extreme pressure on the point, the plow will trip. It actually rolls "down" with the pressure. In looking at the design, it looks like there is a notch in the top of the shaft that the plow mounts to. There is a roller on an arm that sits in the hole. I assume there is spring pressure on the roller. Extreme pressure will make the roller roll "out" of the notch and the plow will trip. You then back up and it will click back in and you are ready to go again. Saves breaking the plow to bits hitting rocks and such.

My problem is the plow has tripped so much over the years, very hard ground will trip one of the three. I need to clean up the notch a little. The edges of the notch are rounded a little.

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Jerry (AL)

05-04-2002 16:19:29




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
I have a JD trip plow. When there is extreme pressure on the point, the plow will trip. It actually rolls "down" with the pressure. In looking at the design, it looks like there is a notch in the top of the shaft that the plow mounts to. There is a roller on an arm that sits in the hole. I assume there is spring pressure on the roller. Extreme pressure will make the roller roll "out" of the notch and the plow will trip. You then back up and it will click back in and you are ready to go again. Saves breaking the plow to bits hitting rocks and such.

My problem is the plow has tripped so much over the years, very hard ground will trip one of the three. I need to clean up the notch a little. The edges of the notch are rounded a little.

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Jerry (AL)

05-04-2002 16:16:47




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 Re: How does a trip plow work? in reply to AGEN, 05-04-2002 14:35:35  
I have a JD trip plow. When there is extreme pressure on the point, the plow will trip. It actually rolls "down" with the pressure. In looking at the design, it looks like there is a notch in the top of the shaft that the plow mounts to. There is a roller on an arm that sits in the hole. I assume there is spring pressure on the roller. Extreme pressure will make the roller roll "out" of the notch and the plow will trip. You then back up and it will click back in and you are ready to go again. Saves breaking the plow to bits hitting rocks and such.

My problem is the plow has tripped so much over the years, very hard ground will trip one of the three. I need to clean up the notch a little. The edges of the notch are rounded a little.

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