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semi mounted vs fully mounted

J

johndeeregreg

Member
wondering what the pros and cons are of each type of plow? i have an 810 4-14" fully mounted. main reason i wanted fully mounted was to simplify
loading on a trailer. i have only gotten to make a few short rounds with it, it seems to work good, just wondering if a semi mounted such as a F145
has any advantages over a fully mounted. can a semi mounted be backed on a trailer or will it bottom out when transitioning from dovetail to bed?
power plant is a 720 Diesel so with a semi mounted i wouldn't have any depth sensing, not sure if that's much of an issue though. just curious what
advantages each has
 
In the field the semi mounted plow will follow the ground better. It also is easier for the tractor to just lift half the plow. As for loading it. If your trailer is just a regular trailer with ramps on the back you will have issues loading it. The plow will hit the trailer at the top of the dove tail on most trailers.
 
I recently purchased 5 plows from an estate all restored .There were 4 that were fully mounted and one was an F-145.I thought the mounted plows due to lack of clearance would be tougher sale but went right away.The fully mounted takes less room on trailer and is easier to load but has less clearance.The semi mounted plow can be equipted with side hill hitch and less front weight is required.The fully mounted plows that were made for the 8010 4WD are really neat and hard to come by.When out of ground the rear wheel is about 8ft high.Many plows were scrapped and its one piece of equiptment that the bigger it gets the less it brings.The f-145 3 bottom plows if equipted with guage wheel,coulters,cover boards, and side hill hitch can bring $1000+. A nice fully mounted 3 bottom can bring about the same.A 5/16 F-145 can be bought for $300 or less.
 
Had a 5-14 F-145 follow me ALL around most of the BTO Neighbor's ground, pulled by 4020-Gas, three different 4020-D's, 4320. Was one of many similar plows in the area. A 4 bottom fully mounted is about as big as I'd ever want to use. Dad had an IH 4F-43 fully mounted Fast Hitch plow we pulled with the 450-G, needed 500# of iron up front to keep the front tires on the ground. Now 50 years later I can't believe I ran that tractor/plow wide open on the road. Even with weight on the front, pin the tractor's ears back in high 5th the frt tires came off the ground! Plow was close coupled to the tractor but still swung wide when turned into furrow off the headland. Could not use with plow harrows like those made by Noble or Mid-West which is why we switched back to a Case 4-14 pull type plow.

A 2 or 3 bottom mounted plow is tiny in comparison to a 4 btm. mounted plow. My preference for a 4 bottom plow is either a pull type first, semi-mounted a close 2nd, fully mounted way distant third. 5 bottom plows, semi-mounted 1st, pull-type a somewhat distant 2nd, would not use a fully mounted if they made such a thing.
 
Back in the old days we had a fully mounted 4X14" on a 720D, it was very light on the front and didn't do all that well in the field,,latter on we put a F145 3X16" on it ,,it was a much better outfit, handled and plowed much better,, as for the load sensing there is a hitch to use that makes that work out too..as for backing it,, that is a little tricky,,it will want to lead off to one side,,but with a little practice you can make it go where you want it to..a 2X8" placed it the correct spot will help you over the hump in the trailer..and go with a 3X16" F145 you will do much better with it on a 720,,and actually get more done in a day,,a little less width,,but better steady ground speed,, and you won't have to fight with it..
 
When I load mine, I set the gauge wheel as low as it will go and it tracks up the ramp and the plow clears the trailer.
a261476.jpg
 
thanks for the info guys, my 720 seems to handle my plow good in what little i have been able to use it. i did have 600 pounds up front and 6 wheel weights on it, 2 on furrow wheel and other 4 on land wheel so it seemed to put the power to the ground good
 
I like semi mounted the best for a one way plow they follow the ground better and you can turn with the plow in the ground .
a261664.jpg
 
I prefer semi-integral as a clean furrow and more precise adjustment from the tractor seat in easily made.

Depth control is achievable with the original type mast attachment. They're extremely hard to find original attachments and are available for sale on ebay.

Tyler in IL
F145H Hitch mast attachment on ebay
 
This attachment keeps the center link tight against the front hitch of the plow- When adjusted properly this will sense when the tractor / plow is drafting deeper or lower so the rockshaft can lift/ lower to keep the tractor from bogging down or plowing too shallow. I prefer to use the 3rd hole on the load control yoke and keep the depth control yoke indicator lever between the 1 and 2 notch. You can adjust the length for sensitivity but when they're installed and working it makes using a semi-integral JD plow nice compared to with out it. Otherwise you're hand needs to be glued to the rockshaft lever constantly adjusting to make sure you have consistent depth and the tractor doesn't stall out when going over slightly irregular ground.
 
is that mast attachment compatible with the side hill hitch? can the side hill hitch be locked in place, not sure i would really need that option as its relatively flat around here.
 
gauge wheels help with keeping a constant on the rear bottom depth. 3 & 4 bottom sizes don't really need one. 5 & 6 bottom sizes need it for sure.
The mast attachment isn't compatible with the hydraulic landing hitch.
tyler
 
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