[RED-85-Z51]

When i made my 3pt, I was unsure where to mount the center link point on the tractor so I made a hoop around the rockshaft and made an attachment point there, but it moves freely.

I basically have no down pressure.

So do I need to tack the link attachment point to the rockshaft? Anyone got pictures of how Deere did it on the 316/318 tractors?

Anyways, I got my discs all sanded and wire wheeled, I think its an old Brinly disc, but its hella heavy duty, cast iron stantions and tubular frame.

Going to put Herculiner on the frame, and paint the discs themselves with paint...sems backwards, but I dont have enough Liner to do the discs...

 

[RED-85-Z51]

Here's pics

 

[RED-85-Z51]

Confirmed it is a quite old Craftsman branded Disc Harrow, Model number 757.262920 and 757.262940

 

[Kansas John Deere]

You shouldn't have any down pressure on a 3-pt. If you do then you will lost traction.

 

[RED-85-Z51]

Whats happening is, when i drop the discs and go into the dirt, the front of the discs dig in, and the back discs hinge up because the top link isnt rigid.

 

[jwill1776]

Whats happening is, when i drop the discs and go into the dirt, the front of the discs dig in, and the back discs hinge up because the top link isnt rigid.

Try to lengthen your toplink, this should level out your front and rear dics. That’s a great looking disc, I’d be happy to find a used one like that.

 

[larrybl]

Just a thought, as stated you don't want the tractor applying the down force as you will loose traction. loosing the top link may help; what if you added weight to the back top frame of the harrow, a couple cinder blocks?

 

[larrybl]

My thought

 

[RED-85-Z51]

If I turn out the center link, it still pivots when I drop the disc down, only then when I go to lift it, the back gang drags the ground.

Its a really heavy disc, I shouldnt have to add weight to it, its a solid 2 man lift to move it around.

Im going to try and find a picture of a stock 3 pt and see how Deere did it.


EDIT- Found a picture, looks just like I figured, The center link mount is supposed to be rigid to the rock shaft, mine hinges on it, Ill tack it on tomorrow and see if that fixes it.

Im not so much looking for downpressure, I think that was the wrong word to use, as I already have "down pressure" on the main links, I needed top support, basically Ive been using a 3 point like a 2 point.

 

[Team_Green]

Going to put Herculiner on the frame, and paint the discs themselves with paint...sems backwards, but I dont have enough Liner to do the discs...

I would never do the disks.. They should be smooth.. if you use em enough they will shine..EDIT.. NEVER use herculiner on em..

 

[WNYTractorTinkerer]

How abou this red- Fab up a rigid top arm mount that doesn't slide? Just a thought..:dunno:

 

[gburnett]

You have a couple issues 1)Your toplink will work best if solid mounted on the tractor end.2)Your 3pt pins are above the center of your disk so you're pulling them down which means the back comes up.Fix it by lengthening toplink but you say it thens drags the ground when lifted on the rear.Then the choices are lower the pins so you're pulling the disk with the arms straight or slight downward or put lots of weight on the rear of the disk.Also if it were me I'd have the lift link directly straight from the top to the arms and I'd shorten the lower arms.