Mountain Heritage,
Would you tell me more about the "press wheel springs" from "other color" tractor dealers?
Well....lets see....
They are used on corn planters in their "row units" (White, New Idea, John Deere - that I know of for sure). If I remeber correctly they have two different sizes (length for sure), pretty sure the diameter is the same. They use them to provide down pressure on the "row unit" when the planter is down and actually "planting". There is 4 per row unit at the front of it (in front of the seed box) 2 per side, they are right behind the main beam of the planter. So as the planter is drawn down the field behind the tractor, the opener disc's and press wheels are riding on the ground. When you come to ground that isn't worked up as much, trash on the ground (last years corn stalks or soybean stocks, sod, etc) the springs prodive down pressure to keep the row unit down and forces the seed openers to cut in the the ground. This makes a consistant "trench" for the seed to be dropped into. Then the large flat packer wheels run over it and push the ground and seed into the ground. The last part of the row unit then passes over where the seed has been placed in the trench and it has two wheels that are angled towards one another....like.... \ / that and they provide a little "hill" of groudn over top of where the seed has been placed. There is one and sometimes two springs in front of these wheels under the frame that provides down pressure to keep the wheels down in the ground to make that little "hill" consistantly throughout the row. I sat down pressure for the last set of wheels but they are more pulling the wheels down and forward towards the front part of the row unit.
Hopefully this will help.....I will see if I find a picture to explain it better......they are kinda strong springs!??
