Down pressure on 3 pt?

[Leejohn]

I"m starting a thread on this because I didn't want to highjack another thread. I asked about this and was given a link, but it didn't help me. Can you get down pressure on a 3pt? I guess there are some tractors that has it,but I have never seen it.

 

[Soundguy]

MOST stock tractors do not have 3pt down pressure.

A very FEW do.. usually some of the larger ones.

also.. some that did not have 3pt originally.. like AC and farmalls and JD's that have aftermarket 3pt kits generally have the capability for downpressure.. etc.

soundguy

 

[RDrancher]

Most landscape loaders, also known as industrial loaders regionally and skiploaders in Western states have 3-point down pressure. They're construction duty and in the higher horsepower range except for the older Ford and Massey models. I ran quite a few over the years. Mostly used the down pressure feature as tilt on both sides though it was useful for keeping slight down pressure on the box blade during grading without having to deal with "box float".

Most skips didn't have a PTO, but I did run a Ford in the 80's that had one. A PTO is still available as an option on newer versions.

 

[F250DSLPWR]

What are you needing down pressure on the three point for? I have a Beltec hydraulic post hole drill and it uses locking arms and a hydraulic cylinder for providing down pressure. When drilling it lets the drill push against the locking arms and tries to lift the tractor. Not really true 3 pt down pressure but it works. I have also seen other regular post hole drills that have a cylinder on them to provide down pressure.

 

[Leejohn]

I was thinking more in the line that you could lock the 3 pt where ever you wanted. Like when using a rear blade or box blade and you could cut the high spots. After the spring rains, the clay around here gets hard and around Aug. you might as well forget it.

 

[Soundguy]

a box or angle blade adjusted correctly will have 'suction' into the ground for a cut, much the same way a plow does.

in hard pan you may need to rip it with scarafire teeth first, and or weight the blade and rip it first..

 

[Hollow]

The only tractor I've ever seen with 3pt down pressure was a Belarus.

 

[J_J]

A cheap way to get down weight is to add weight to the blade or box blade, but you will not have much control on digging depth. Adjustable runners would solve that, or wheels on the back.

 

[MtnViewRanch]

When you have a tractor the size that most of us have, if you were to have down pressure or what you want to do and have the blade locked in position when you came across an uneven area you do not have enough mass to clear cut the ground and you would just be hung up with your wheels spinning anyway. This is one of the main reasons to have as much weight as is reasonable on the tractor and the implement. The tractor has traction and the implement has weight that will cut the ground.

If you have high and low spots to deal with on a regular basis, then I suggest that you get a land plane grader blade. (LPGB)

 

[pacerron]

I was thinking more in the line that you could lock the 3 pt where ever you wanted. Like when using a rear blade or box blade and you could cut the high spots. After the spring rains, the clay around here gets hard and around Aug. you might as well forget it.

Do you have a draft control lever ?

 

[Soundguy]

what difference would that make if he had draft control... that does not equal down pressure.. etc.. ???

 

[JB4310]

I'm brainstorming here Thinking of a simple way to get down pressure on 3 pt.
How about a DA cylinder from the the draw bar to the draft arms. pulling the draft arms down. or using the bottom hole for the top link to attach a cylinder from there down to the draft arms, pushing them down under pressure?

Already have the remotes and the HTL cylinder, so I'm halfway there.
Never really needed down pressure that much, I do weight my box and blade, and with the HTL it's easy to get the perfect blade/ cutting edge angle to do the most work.

JB

 

[MasseyWV]

After the spring rains, the clay around here gets hard and around Aug. you might as well forget it.

We have red clay and when that stuff dries out it sets up like concrete.

 

[rjmack]

why couldn't you use two cylinders the same as an fel, with a valve that had the same 'float' option to allow the 3pt to behave like a normal one when you wanted?

of course, the built in lift mechanism would be useless, and it does sound like a lot of work to convert.

 

[MasseyWV]

why couldn't you use two cylinders the same as an fel, with a valve that had the same 'float' option to allow the 3pt to behave like a normal one when you wanted?

of course, the built in lift mechanism would be useless, and it does sound like a lot of work to convert.

That's not a bad idea. Perhaps one could attach each of the cylinders to the ROPS frame, thus saving a lot of fabrication work. It would provide the same functionality as the 3pt hitch with the added benefit of having down pressure. At least it sounds good in theory, but adding down pressure could also create traction problems.

EDIT:

Not that I've looked into it further, it appears that having down pressure isn't such a good idea afterall, and in certain circumstances it could even be a safety hazard.

 

[lilranch2001]

When you have a tractor the size that most of us have, if you were to have down pressure or what you want to do and have the blade locked in position when you came across an uneven area you do not have enough mass to clear cut the ground and you would just be hung up with your wheels spinning anyway. This is one of the main reasons to have as much weight as is reasonable on the tractor and the implement. The tractor has traction and the implement has weight that will cut the ground.

If you have high and low spots to deal with on a regular basis, then I suggest that you get a land plane grader blade. (LPGB)

What brand is that?
I like the length!
:thumbsup:

 

[MtnViewRanch]

What brand is that?
I like the length!
:thumbsup:

LPGB is just an acronym for land plane grader blade. We here on TBN have so many names for this type of implement that a new guy would think that we were talking about 3 or 4 different implements in the same thread. :confused2: I may be contributing to that confusion, :ashamed: but hope that many will start to call them LPGB also.

Both of my LPGBs are RoadMaster blades, long since out of business. The closest thing out there at this time is the Road Boss. Yes the runners are quite a bit longer than what are available today. My 5 footer has 6 foot sides and my 7 footer has 8 foot sides.

 

[Leejohn]

why couldn't you use two cylinders the same as an fel, with a valve that had the same 'float' option to allow the 3pt to behave like a normal one when you wanted?

of course, the built in lift mechanism would be useless, and it does sound like a lot of work to convert.

Now that could be done on my GL4240, because it has 2 SA Cyls for the 3pt. right now. I guess all that I would have to do is use 2 DA cyls. and plug into one of the rear remotes.

 

[Soundguy]

for machiens with no 3pt like the big ol letter series famralls and some w series Allis's.. saginow and other tractor shops make a hd dual acting kit for 3pt hitch.. lift and down pressure.. etc..

 

[Dogscape]

Who's most of us?