Need Help With Hole Spacing On 3-point Stabilizers Please.

[npalen]

I'm planning to build a pair of telescoping side stabilizers for the 3-point lift arms on my Kubota B9200. These will be replacing the turnbuckle type which are difficult to adjust due to space constraints.

Planning to space the holes in the internal member by 1/4" less than those in the external member (or viceversa) to allow 1/4" adjustment increments.

What I don't understand is the slot in the external member I see on some of the factory stabilizers. I do understand that some slack can be a good thing at times but wondering about the placement of the slot.

Someone can hopefully explain the positioning of the slot in relation to the rest of the holes.

 

[bcp]

I don't think it matters exactly where the slot is located. It allows for more side movement when using ground penetrating implements, by just moving the pin.

Bruce

 

[npalen]

Any idea what's going on here? Almost looks like a threaded combined with a pin type adjustment.

 

[mddorange]

Mark Hodge makes great stabilizers for tractors. you might want to contact him and ask for advice.

 

[CADplans]

If you use two different hole spacings,,
you will be able to get adjustments of far less than 1/4" per pin move.

Example (I ain't saying this is right)
On the exterior part, use 1" spacing
On the interior part, use 3/4" spacing.
Adjust to where you want it, then select the holes that happen to line up!!:thumbsup:

I have had my tractor since 1995,, I have never adjusted them
so I could care less if they were welded.

I doubt they have been moved in the 35+ years life of the tractor,,
at least, they do not look to have ever been adjusted,,,

Below is probably the worst system EVER devised,,
inside the arms, turnbuckle chains.

A chain has to be un-pinned, and removed,,, to remove an attachment,,
or, the arms must be left VERY loose,,, :confused2:

 

[npalen]

Mark Hodge makes great stabilizers for tractors. you might want to contact him and ask for advice.

I've been visiting with Mark and, while very kind and helpful, he doesn't offer stabilizers for the B8200 and B9200 Kubota. These models use outboard turnbuckles and space doesn't allow for conventional telescoping type. The design I'm working on would be unconventional even without the space limitation. Conventional just isn't much fun for me.
Now I just need to figure out how to incorporate the slots in this limited space to allow for a bit of "float".
I'm looking forward to being able to easily pin the lift arms all the way out for backing up to and attaching an implement. I know that a quick hitch would be easier but just not willing to live with the drawbacks. Lift capacity is already limited on the older "B" series and not all my attachments are compatible.

 

[s219]

I wonder if the telescoping stabilizers on the B2301/2601, though they are inboard, could be modified?

The L3200/3800/2501/3301/3901 telescoping stabilizers (available from Kubota Wholegoods catalog) are outboard and could be an option too, but might be too large for your B9200. I don't have a feel for the B9200 3-pt hitch size. At least on the newer Kubotas, the 3-pt hitch on the larger B models is similar in size to the small L models, so there is a little overlap.

Here's the only photo I could find of my L stabilizers:

 

[npalen]

The problem on the B8200/B9200 Kubota with their wide tire/narrow stance is that the CAT1 lift arms end up against the tires in their outermost position. To overcome that, the point at which the stabilizers attach to the arms is moved forward to in front of where the vertical links connect to the lift arms.
This results in the stabilizers being extremely short at about 9 1/2" fully collapsed.

 

[teg]

Interested in what you come up with. My L2800 telescoping stabilizers have SO much play in them (how they attach to the tractor) that I gave up trying to keep things tight.

I started to build a set (didn't know how to weld at the time) and I still have all the parts I made... Has me thinking, I need to finish building it! I did not have a "slot" in it. If I ever did need to snug something down I could always put one of the turnbuckles back on.

 

[Mendonsy]

Nelson:
Here's a somewhat different way to do stabilizers. It makes a 3 point into a self centering hitch. This is on my B7500 but was copied from an IH 686. The orange center bracket pivots depending on the width of the arms to keep them centered.

 

[npalen]

Here's a shot looking down over the lift arm with it pushed all the way out against the tire sidewall. Note the short length of the turnbuckle type stabilizer. The lift arm doesn't normally have to come out quite this far, however, even when attaching/detaching 3PT implements.
Note the tilt cylinder that I had to modify to fit in this confined space.

 

[Gator6x4]

Look for use of stabilizer bars top left of page six and I think a reason for a slot on stabilizers will become a little more into focus. http://www.farmstar.com/Manuals/hk1106fs.pdf.

I usually put the pins in the middle of the slot on each side when plowing. (Turning land)

 

[npalen]

Nelson:
Here's a somewhat different way to do stabilizers. It makes a 3 point into a self centering hitch. This is on my B7500 but was copied from an IH 686. The orange center bracket pivots depending on the width of the arms to keep them centered.

That's another new one for me, Richard, had not seen anything like it. Are you using that with a quick-hitch? Does that act like a somewhat rigid stabilizer since the lift arm ball ends would be captured?
Thanks for posting. Interesting.

 

[npalen]

This is on a Deere of about the same size as my B9200 with somewhat similar confined space next to the tire. I'm surprised at how light it is constructed with the outer telescope member being 3/4" x 1 1/2" x 1/8" wall rect tubing. (Probably metric actually) That leaves about 1/2" x 1 1/4" max for the inner flat member. The tube is slotted where the pin is located. The lift arm has the double offset bend in it like so many of the compacts do. That leaves more room for the stabilizer than on my Kubota with the straight lift arms.

 

[Mendonsy]

That's another new one for me, Richard, had not seen anything like it. Are you using that with a quick-hitch? Does that act like a somewhat rigid stabilizer since the lift arm ball ends would be captured?
Thanks for posting. Interesting.

Short answer .... yes and yes. I do have a Pat's QH on it now but not when this was originally done back in 2004. Since both links are fixed it acts like a rigid stabilizer but the width can change to whatever size the implement wants. It makes hooking up much easier even without the QH because both arms move together as the width changes. After using the IH 686 which was that way from the factory (and an IH 584 that wasn't) I got spoiled and made my own for the Kubota. I was a little concerned when I made it that the 1/2" all-thread wouldn't be strong enough but it has lasted over 10 years without any problems.

 

[ovrszd]

Understand that if properly constructed the "sway" load is shared between both arms. So the stabilizer is never handling that load by itself. It always has the other one splitting the forces.

I run my telescoping stabilizers pinned with no lateral movement 99% of the time.

I don't understand never pulling the pins? How do you hitch to implements?

 

[npalen]

Understand that if properly constructed the "sway" load is shared between both arms. So the stabilizer is never handling that load by itself. It always has the other one splitting the forces.

I run my telescoping stabilizers pinned with no lateral movement 99% of the time.

I don't understand never pulling the pins? How do you hitch to implements?

That's something I've been wondering about--"load is shared" and exactly how that "ties in" with hole position increments in the stabilizers. Looks like it would be accidental if both lift arms were up against a stop on their respective implement lower pins. It seems like one arm would have to float a little on the lower pin in order to get the pin in one of the stabilizer holes. Probably depends on how much slack in the stabilizer holes?
I've used the telescoping type stabilizers only a couple times and never really gave it much thought. I do recall having to use the slotted hole on one stabilizer because none of the holes would line up. Perhaps should move the lift arm in or out a little to allow the pin to drop through a set of holes prior to first lifting the implement. But then it looks like one stabilizer might be bearing the entire side load.

 

[ovrszd]

I raise the implement off the ground. Then pin one to center the implement. Then push the implement side to side until the other pin fits. I prefer that this happens at one side or the other. In that scenario both telescoping links will share the load.

 

[ovrszd]

One more thing, if you pin one arm in a round hole then pin the other in a slotted hole you might as well have put the second pin in the tool box because it's doing nothing...

 

[npalen]

One more thing, if you pin one arm in a round hole then pin the other in a slotted hole you might as well have put the second pin in the tool box because it's doing nothing...

Richard--I'm wondering about the necessity of having both stabilizers "locked in". Consider that, on a turnbuckle stabilizer system, only one of the lift arms at a time is carrying the side load. That would be the side in tension as the turnbuckle is non-functional in compression.