What size plow
About to buy a used turn plow for my Kubota MX5100 HST R4s but I want to make sure I don't get to big. What size do you all think I should go for? I don't know anything about them other than the 1,2,3 bottom. What's the 12-16" and how does it affect a plow?
I run a two bottom with 14" mold boards with my 5010 Mahindra. It is a pretty good pull in new ground, but great when I can plow when conditions are favorable or in previously worked soil. Tractor gearing and proper set up are important to easy straight plowing.
Re: What size plow
Originally Posted by OrangeToys
A single 12 inch plow with a disc or fluted coulter will be your best friend.
Plowing in the fall when everything is still dry is your friend
Plowing and harrowing a week before planting in June is your friend
The terms you need to understand are:
For the tractor are;
adjustable Top link
Lower left link
Non Adjustble lower right link
Adjustable lower right link
For the plow they are :
On land plow
In furrow plow
two way or Rollover plow
Mechanical right furrow rotary plow
MechanIcaL left and right furrow rotary plow
Plow width being at the bottom edge being 12-14-16-18........inches
In furrow depth guage wheel
The disc or fluted coulter cuts the sod or broken
ground directly in front of the plow share.
The moldboard folds the dirt over as the coulter wheel and plow share cuts it as it advances
The amount of surface area a plow moldboard has affects the amount
of drag it creates when it is sucking into the ground.
The adjustable top link will determine the angle the first share enters the soil and then the rest follow suit.
The adjustable lower right link affects the geometry of the attachment connected to it where if the lower link
was cranked all the way in it would force the ground engaging attachment it would be at its lowest possible point/depth
in the furrow.
The narrower the width the of the plowshare the less drag; The plow with a disc or fluted coulter reduces the drag even further
by cutting a slit the depth of the plow plow to aid in plowing and reducing drag by creating a path for the plow point and share to follow.
The trash board rolls the trash left from the harvest over into the furrow (if you are lucky) and it is not clogged up with the field trash-corn cobs/stubble.
I am sure I forgot a few things, but you have to understand that the less resistance you create with a single moldboard and disc or fluted coulter the better. :cool2:
A rotary tiller does this in one step as long as you use a slow speed of advance.
A two wheel tractor can do this in one step while also building a raised bed at the same time.
How do you think this would handle?
Leonz: a single 12 is ridiculous for a 50hp tractor, c'mon! I pull a single 16 with 26hp. Give the guy some decent advice.
A two bottom plow on an mx5100 would be great. I believe a few guys pull 3 bottoms with that tractor, but in my opinion, it doesn't have the weight behind it for that. A two bottom with 14" moldboards would be my #1 choice. Don't know your soil type, but this should enable you to move along easy and quick enough to do a fine job of actually turning the soil over. Lots of guys say they can 'pull' a bigger plow, but in reality they aren't pulling it fast enough to do a proper job.
That picture looks light you're on the right track.
Re: What size plow
Your tractor would handle that plow just fine. I use one almost identical to that one, and my tractor is much smaller than yours, 34 hp. By the way, that is a very nice plow, Ford 101 I think. It is trip plow, not a shear pin version, very handy.
I didn't know plow tripped?
Re: What size plow
two 14's would be good. Probably wouldn't have any trouble with two 16's.
A 12 inch? c'mon.
I pulled a 14" two bottom with a 32 hp tractor (engine) and I now pull a three bottom rollover with a 59 hp tractor. (again, engine hp)
There are some old "rules of thumb" One of them is "1 hp for every inch of bottom". Therefore, two 14's would take 28 HP, two 16's would take 32 HP. The plow you picture would be fine behind your tractor.
I put this in another thread but here's a video of my tractor pulling three 14 inch bottoms.
sorry for the bad quality.
Oliver plow - YouTube
" Lots of guys say they can 'pull' a bigger plow, but in reality they aren't pulling it fast enough to do a proper job."
nspec, how about my speed in the video? never below 4 mph and occasionally as high as 4.7 mph. (too fast actually) my soil is sandy loam.
You are correct though, a plow needs to be pulled at a proper speed.
it is an over center device, or a spring loaded device that holds the plow in place. It you hit something buried in the ground, the plow will trip out before damaging something. You generally set the plow on the ground and back up to reset it. A shear bolt plow has a bolt that hold the shank in place. Hit something, the bolt breaks and releases the bottom before something is damaged. You push it back in place, (or hammer it) replace the bolt and you are on your merry way. There are several different methods to the same end but they are all to prevent damage.
PS looks like the hitch has be replaced on the plow you pictured. I'd look for another plow. That hitch is welded solid. A correct hitch is adjustable and allows you to adjust the way the plow trails the tractor. Very important. A well adjusted plow pulls easier.
Re: What size plow
In ighter soil you probably could pull 3-14's if you have enough weight on the front to lift a fully mounted plow. Semi-mounted 3-14 should be no problem. Used to use a pull type 3-14's with a 5600 Ford breaking sod. This had R1 ag tires full of fluid but was not FWD.
Allen: your speed looked good to me. I've seen those videos where the guys are just crawling and the sod isn't being turned over well. Too much plow, you know?
Also, I agree with you 100% about the hitch being replaced on the plow in that picture. That was the first thing I noticed. The 'back half' looks to be a Ford 101. Great plow, parts are cheap and readily available. You could never set that plow up properly though with the hitch being welded solid. I always make little adjustments to mine while I'm plowing to get it to run just right. Especially at the beginning. That's part of the fun of plowing!!
Oldnslow: Tractor weight is a huge factor as you know with regards to how much plow you can pull. That Ford is over 2,000 lbs heavier than the Kubota mx5100 in question. The Kubota does have 4wd though, although the r-4's won't be as good as ag tires. Lots of factors to consider.