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 | Normando
Join Date: Dec 2003 Posts: 30 New Hampshire 
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2006-05-02 128742
Thank you for the information the other day regarding the single shank subsoiler. I was able to borrow one from someone I know. Wow it works great!
I do have one question. What size top link should I be using? Category 0, 1, 2, or 3? I bought a used one from a local tractor guy (not sure of the size) and it looks like its bending. I afraid it’s going to break.
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 | kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina 
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2006-05-02 128753
I guess you are talking about the top link on your tractor looks like it is bending..if so is it the one that came with the tractor?
For a single shank a Cat 1 top link should be fine.
If a Cat 1 is bending with a single shank I would think it has to be a very cheap product. But hey, I bent my Cat 1 with a flail mower, backed it up a bank at greater angle than I realized.
Cat 0, I have no idea on them. ....
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| Normando
Join Date: Dec 2003 Posts: 30 New Hampshire
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2006-05-02 128755
Well maybe I am talking about the wrong thing. What I am referring to is a kind of turnbuckle thing that attached to the back of the tractor and the other end attached to the soil shank. The other two end of the soil shank attached to two bars coming off the bottom of the tractor. Its the turnbuckle thingy that bent. I thought the tractor guy called it a top link.
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| kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina
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2006-05-02 128757
That would be your top link.
A subsoiler pushes agains the top link. When you are lifting a load you are pulling against it but with some implements they do push to some degree against it.
A single shank subsoiler really will. So you could bend it. I would not think you would bend a good quality Cat 1 unless you really hit a load unless there is no shear bolt. I don't think a Cat 0 toplink would be a good choice. If your tractor has Cat 2 linkage I would use a Cat 2 toplink if the subsoiler will accept it. Normally the top link hole in the implement will tell you what the manf thinks the load will be. If the subsoiler does not have a shear bolt or pin you probably should use a undersize pin in the top link.
It just occurred to me you may not realize what a shear pin or bolt is. If you do please forgive me. But most subsoilers will have a bolt somewhere in the design that is small that will take the shock load by shearing and let the plow ride backwards and up over such as stump or large rock. If the subsoiler you are using does, and they are not shearing someome may have used a higher grade bolt they are suppose to.
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| Normando
Join Date: Dec 2003 Posts: 30 New Hampshire
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2006-05-03 128835
Got it! Thank you
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 | DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada
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2006-05-04 128856
All those different CAT's have different pin holes.
Take your bent one to the store and get one with the same dimensions of length and pin holes.
KT.... CAT 0 links are on garden tractors and use 5/8's pins. ....
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| kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina
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2006-05-04 128862
DRankin,
I don't have a Cat 0 tractor of equipment. So I may be way off. Most tractors has same Cat Pins at all three points, each lift arm and top link. Some Cat 2 will have a Cat 1 connection at tractor and Cat 2 on the implement end.
If his tractor is Cat 0 and the subsoiler has Cat 1 pins, how does he connect it to the lift arms? If it has Cat 0 lift pins are they not bending from the pulling action if the top link or third arm (as most call it here) would be?
I don't have the sizes right off but as the Cat number increases the size or diameter of the pins increase.
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 | Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada
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2006-05-04 128865
There is a snaeaky way to avoid this problem....
If you spin the subsoiler 180° and use it with the tractor in reverse, then it will be pulling on the toplink instead of pushing.
If you don't have a lot to do it might be an easier way to do it.
Best of luck. ....
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| Normando
Join Date: Dec 2003 Posts: 30 New Hampshire
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2006-05-04 128867
I seriously doubt I have a Cat 0 connection. My tractor may be a compact tractor but it is a rather large compact tractor. I’ll get the proper size top link. ....
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| DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada
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2006-05-04 128869
Your Deere 950 should be a Cat 1. ....
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 | yooperpete
Join Date: Jan 2004 Posts: 1413 Northern Michigan 
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2006-05-04 128870
The top link hole for a category 1 hitch is 3/4"(.750). If your sub-soiler has a smaller hole for category "O" [5/8"(.625)]you will use the smaller pin with a bushing having a 5/8"I.D. and 3/4"O.D. TSC and tractor dealerships will have this.
Likewise if your tractor has a category 2 top link, it will have a 1" hole in it. If you have a sub-soiler with 3/4" hole (Category 1) you will put a 3/4" pin through it with category 2 to 1 reducer bushing. (1"O.D. x 3/4"I.D.) ....
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