880 stabilizer mods

Posted by desmcgivern on 2009-05-12 13:30:00

My 880 selectomatic came without a stabilizer. Since the tractor is not used much I don't really want to go to the expense of buying a new stabilizer bar. My brother suggested I use a top link as a stabilizer. He saild I would need to narrow the ends to just the balls to fit on the pins. Just wanted to know if anyone has tried this or have any thoughts on wheather it would work or not.A link box is the only item used on the arms.
Or perhaps has anyone modified the stabilizer to accept chains or other methods?

Advice appreciated.
Cheers
Des
Posted by: erkki on 2009-05-12 18:51:00
Hmmm. I would not do that. Sooner or later it will ruin the top link. Originally there were chains from the middle line, above draw bar to the pins in the middle of the arms. They are much better than nothing. Telescopic stabilizers are best solution, you can find a pair from a dismantler for a reasonable price.

RGDS
Posted by: John_Allen on 2009-05-12 19:01:00
I think the ends of the top link would need bending before you could fit them as the balls' housings would tend to foul the arms and bracket. I have a non-original stabiliser on the 780 and it won't fit the side with the correct DB pins because the housing pushes the ballaway from the link arm.

As Erkki says, a breaker may have a better "cheap" solution (eg chains from an MF 240/565 etc) - but you'd need them on both sides!
Posted by: Scooby on 2009-05-12 19:58:00
If the only thing that you put on the linkage arms is a transport box just get a piece of flat bar, say 2" wide, 1/4" thick, and drill two holes the same size as the stabiliser pins, one at each end.

You can put a bit of crank on each end. This will need a bit of trial and error and won't be adjustable but if you've got the box central on the linkage when you do the measuring it will be a cheap and better alternative to using a top link. The early T20s, 35s, and 135s used this method.
Posted by: mitch on 2009-05-12 20:55:00
I suggest investing in the stabiliser bar especially if the brackets for mounting are sound. I have bent the lower end of the lifting arms on one side from using chain stabiliser of a Ford 5000. (stupid idea) Result is that the lower link arms do not swing in their full arc now. This might not happen with light gear but will happen if you lift heavy gear and drive over rough ground like i did.

Mitch
Posted by: erkki on 2009-05-13 06:45:00
In our DBs the telescopic stabilizers are connected to the quarter holes of the arms and to the final drive pins. They tolerate a lot of horizontal loading. Chain stabilizers have the problem that on rough ground an implement can swing several inches and if the implement is heavy, the shock when the chain gets tight becomes very high. We have all seen several arms repaired by welding and reinforced in different ways.
DB arms are made of excellent steel. Once an arm of 1200 was bent accidentally in forest work. I tried to press it back, but springback was more than 2 inches and after putting more and more pressure, the arm broke like an overloaded leaf spring. So, if you get a bent arm, dont straighten it in room temperature. 400 C preheat will help a lot. If you put the arm red hot, it will be annealed and the steel looses some of its original strength.

RGDS
Posted by: mitch on 2009-05-13 10:37:00
When I say bent erkki, it was only slight and where the lift arm forks to slide over the lower lift arm. Only realised it was bent when the lower lift arm did not want to swing in its full plain horizontally. You have to look hard for any twist. That said I was still annoyed that I had done it as youhave described pretty well impossible to undo that sort of damage.
Posted by: John_Allen on 2009-05-13 19:05:00
I agree that chains aren't the greatest idea, but OK if the loads are light and they are adjusted to be tight in transpost position (if they let the arms go right down). Used to use a MF 240 with a loader and concrete block on the back. Had the chains tight with the block up, but had to slacken them to let the block down - so we went through a lot of chains when the threads stripped! The 565 on the same farm was the other way - tightened as it lifted, which was most annoying when you forgot and set off with an implement nearly down!

The problem we found with the Fergy bar-type was that some pattern ones used to bend like mad and you couldn't always use two (depended on the distance between the pins on the implement).
Posted by: denbute on 2009-05-13 19:54:00
All DB's I have seen over here, use chains as stabilizers. We've never had problems with them, even if someone neglected to tighten the chains. Normally I can't stand having a heavy load like a link box swing freely on the back when going fast, I always tighten them up.
If it hasn't got to be original you can easely make something that looks like this setup. But you will have to make both sides then to make sure it can't go either way.
Posted by: mitch on 2009-05-13 20:54:00
You can have the original stabilisers set up so the load does not swing when linkage is at its lowest or highest without adjustment of anything. To do this with chains you need to constantly adjust as denbute describes.
Posted by: denbute on 2009-05-13 22:15:00
I only adjust when changing implements on the back, once set it lifts or lowers without any adjustments.
As far as I know, these stabilizers are/were standard in Belgium, as every DB I've seen has these exact chains and
screw type adjusters. Plus I have never seen the chains connected to the middle of the frame of the drawbar on tractors of
this age.
Posted by: Guest on 2009-05-13 22:35:00
The original solid bar type are hard to find but there are plenty of the later adjustable sliding ones about but a lot of these have worn threads. Not a hard job to repair, cut the thread off the ball end and weld on a length of threaded bar the right size and also cut the threaded tube section off the sliding tube and weld on replacement threaded tube. You have to groove the end of the bar and ball end to get a good strong weld into it. You used to be able to get a kit to repair them. You need a pair though to stop any swing.
Posted by: Scooby on 2009-05-13 22:49:00
Two tips on telescopic stabiliser bars.

1. Eventually the inner part of the female gets dust/crud stuck in there and the male part isn't able to push in far enough to get the locking pin in. So drill a couple of small holes at the point of the stop in the female half at 90 degrees to the locking pin hole. That way all the crud drops out before it has time to get compacted.

2. If your tractor has lower link sensing just make sure that the stabilisers haven't lengthened themselves against the linkage arms when using draft implements. If the stabilisers get tight and lock up the linkage bars the lower link sensing won't work.
Posted by: desmcgivern on 2009-05-14 13:58:00
Thanks to all those who replied.
I priced a new stabiliser bar from Case today for an 880 and they quoted £350 !!! - seems madness to me...
I bought a new one for a 996 a few years ago and think it was about £90.
Would the following item 230335292526 from ebay possibly work - its listed for a ferguson but looks like it might work and a whole lot cheaper.
Does anyone else like Sparex or Vapormatic do copies of the orginal?

Des
Posted by: Bernie990 on 2009-05-14 19:30:00
Hi,

Ordered a stab bar from Sparex by mistake (misread number from this web page. Bar is telescopic type,
about £60. Not listed to fit an 880, although the pin and bracket it attaches to are listed to fit 880,
maybe the length is different.

Bernie.

http://www2.gb.sparex.com/Sparex.aspx?P ... er=S.14754 to fit a