Subsoiler Qs

[John_in_TN]

This can get confusing, but I think "jnjpream" is correct on this one: shorten the top link to make the sub-soiler more aggressive.

 

[Gary Fowler]

Right on, shorter the top link the more bite the foot on the subsoiler has. Just the opposite of a grader blade.

 

[LD1]

I have no first hand expierence but I still fail to see how a shorter toplink will give more bite.

The shorter it is, the closer to perpindicular (90 degrees) to the ground the blade becomes. Since a 3PH has NO downforce, wouldn't that make the bite less. Wouldn't the closer to parallel it becomes probide more bite?? Same as a blade, 50 degree agle from the ground will provide a better bite than say 70*

 

[beppington]

I have no first hand expierence but I still fail to see how a shorter toplink will give more bite.

The shorter it is, the closer to perpindicular (90 degrees) to the ground the blade becomes. Since a 3PH has NO downforce, wouldn't that make the bite less. Wouldn't the closer to parallel it becomes probide more bite?? Same as a blade, 50 degree agle from the ground will provide a better bite than say 70*

The subsoiler's tooth starts out at a very shallow angle that's close to horizontal, causing it to tend to ride along the top of the ground. Shortening the top link causes it to dig in deeper/ harder.

 

[LD1]

I guess I can understand that. Going from 90 degrees being perpindicular and 0 being horizontal, typically the lesser the angle the more the bite, but ONLY to a point.

I wasnt taking into account how low (near horizontal) the angles were on a commercial subsioler. My homemade one has a steeper angle, so lengthing the TL DOES give me more bite. But then again, I dont consider mine a subsoiler. It is more like a ripper that I use for mainly two reasons. Cutting roots when digging stumps and busting up hardpacked clay to make FEL work easier.

 

[LD1]

I thought I did pretty good though making that a few years ago with just scraps that cost me nothing. Even the Pins I turned on the lathe from free scrap. But after reading the "your time is not free" thread and considering it took me ~ 5 hours to make, I guess I should have just bought one for ~$200 bucks. As it stands now, I am $250 in the red on this baby. But the sharpened edge probabally slices roots better then a TSC one though.

 

[dstig1]

I had one wheel off the ground a couple days ago. The pucker factor was such that I think I pulled a chunk out of the seat. Won't do that again. :laughing:

Ian

That's what you think... It will happen again. You just need to learn when it will happen so you are ready for it and can try to avoid it as much as possible. I suspect this is even easier to do in the smaller tractors.