3-Point Hitch B2920 and Single Row Disc Harrow Opperation

[Howard92]

I came across a good deal ($100) on an old 4 angle iron single row disc harrow. All I want it for is to rough up the ground a bit to plant grass or whatever for some small food plots. I tried it out in my backyard and have a few questions.

1) I guess I'm not exactly sure how my 3 point lift works. I lower the disc until it starts cutting the soil (Maybe 1 to 2 deep). But when I go over a low spot, the disc does not drop down and follow the contour of the dirt. Should it? Seems like when I hit a high spot, the disc gets pushed up and does not drop back down and I have to keep hitting the down lever. What should it be doing? Maybe I need to add weight to the disc? Operator error I'm sure.

2) The disc seems to cut better on either outside edge, but skips spots in the middle. Is this normal?

Any help or instruction on what I'm doing wrong is appreciated,
Howard

 

[jeff9366]

I came across a good deal ($100) on an old 4 angle iron single row disc harrow. All I want it for is to rough up the ground a bit to plant grass or whatever for some small food plots. I tried it out in my backyard and have a few questions.

1) I guess I'm not exactly sure how my 3 point lift works. I lower the disc until it starts cutting the soil (Maybe 1 to 2 deep). But when I go over a low spot, the disc does not drop down and follow the contour of the dirt. Should it?

Gravity and the weight of your implement should make it follow ground contours unless one side of the implement is raised up my high ground while the other side is not.

The adjoining pans should throw dirt into the low places, if the Disc Harrow is heavy enough, if you have enough angle adjustment (more angle adjustment throws more dirt) and if you are pulling the Disc Harrow fast enough.
Under most conditions a Disc Harrow needs forty pounds bearing on each pan to be effective.

You can add weight but you may bend the angle iron supports. Try increasing angle adjustment and pulling faster before adding supplemental weight --- then be prudent in the addition.

Can you INCREASE ANGLE on the pans of your implement?


Seems like when I hit a high spot, the disc gets pushed up and does not drop back down and I have to keep hitting the down lever.

Either your Three Point Hitch has too much friction due to something sticking in it or it needs lubrication at pivot points to reduce friction or your Disc Harrow is too light.


2) The disc seems to cut better on either outside edge, but skips spots in the middle. Is this normal?

A TANDEM DISC HARROW throws dirt OUT on the Front Gang and throws dirt IN with the Rear Gang. With a TANDEM DISC HARROW, shortening the Top Link reduces furrows produced by outside pans. I can't translate this to a single gang Disc Harrow; sorry. Probably going over the plot at 45 degree angle is your best option. Forty-five degrees and is more effective than 90 degree angle for second pass.


Most begining Disc Harrow users think it will plow. It won't. A Disc Harrow is one type of TILLER.

A heavy TANDEM DISC HARROW (At least fifty pounds bearing on each pan.) will till up new ground with multiple passes but does not TURN UNDER the surface; it just mixes the surface. For food plots, mixing may be sufficient.

 

[HEC]

Pictures could sure help . You can't expect to much from a 1 row disc . More weight and good angle will help.

How low are the pins on the disc, as it should follow the ground just fine if your lower control arms can go low enough on the 3 pt. hitch . If the upper arm is to tight that can cause it not to lower all the way also .

 

[jeff9366]

HEC: Excellent points.

On Three Point Hitch there should be three adjustment holes along the length of the Lower Link beams, these affect how low the implement will be carried. There also pin selections on Lift Rod Stirrups which fit into these adjustment holes on the Lower Link beams, further affecting how low the implement will be carried. However, since no Three Point Hitch provides down pressure, implement weight is the key factor in how well dirt will be moved.

Rule of Thumb for Disc Harrows is that forty pounds weight bearing on each pan is MINIMUM which will make the implement effective.

See if this DETHATCHER LINK explains Three Point Adjustment:

http://www.tractorbynet.com/forums/...p-60-dethatcher-working-three.html?highlight=

 

[Howard92]

I'm still confused about how the 3pt hitch works. I guess I assumed that there would be a "float" position on the control lever that would allow the implement to follow the the contour of the soil. Mine seems to work more like I can push the control lever forward and the 3pt lowers until I pull the control handle back to neutral. Then the 3pt is locked in that verticle position and can't let the implement follow the soil.

Thanks all,
Howard

 

[GPintheMitten]

Don't pull the 3 pt lever back to neutral. Leave it down and try again. Post a couple of pictures of your harrow setup.

 

[M5farms]

I'm still confused about how the 3pt hitch works. I guess I assumed that there would be a "float" position on the control lever that would allow the implement to follow the the contour of the soil. Mine seems to work more like I can push the control lever forward and the 3pt lowers until I pull the control handle back to neutral. Then the 3pt is locked in that verticle position and can't let the implement follow the soil.

Thanks all,
Howard

push the 3pt forward and leave it. it should stay down.

 

[Howard92]

Don't pull the 3 pt lever back to neutral. Leave it down and try again. Post a couple of pictures of your harrow setup.

I didn't know I could do that. That is probably what I'm doing wrong. I will try it tonight to see if the lever will stay forward.

I will post up a couple of photos of the disc, but it is currently not attached to the tractor.

Thanks all for the help.
Howard