Bent Curl Cylinder on LA723 Loader

David_Kb7uns · Aug 7, 2009

You may try searching to find it, but I have heard other accounts of the stops not being at the right places on some L series loaders.

David Kb7uns

MessickFarmEqu · Aug 8, 2009

back dragging with the bucket curled forward, especialy with a toothbar, is the easiest way to bend cylindres. You really need to be careful to extend the cylindres as little as possible while doing this.

rScotty · Aug 8, 2009

I'm just curious how the new cylinders compare to the old for wall thickness and extension rod diameter. Like many of us, I've used my buckets for back-dragging for a long time with no problem - though this tractor is my first Kubota. I will definitely check the stops, but doubt that they come into play for the way I use a bucket. Even when back dragging I tend to use the bucket in a slightly forward position - rarely even vertical - and never all the way curled back against the stops as it is just too aggressive that way. Probably different loaders will vary.
There is a local hydraulic house that will build any cylinders that you want to your measurements for a very reasonable price. Not as cheap as Bailey's, but half the price of Kubota or JD. I think this type of custom cylinder service is common in agricultural regions. If I bend mine in compression I'd be tempted to go get a more heavily built pair. After looking them over, do you still think that you hit something? Or do you think they bent like a compressed column because they were extended?
thanks, rScotty

Fxfymn · Aug 10, 2009

I don't think I'll ever know what really happened, but my best guess is the cylinder started to bend and I hit something hard enough to make it bend sharply because the incorrectly positioned stops allowed the bucket to flex too far forward.

The new cylinders have the same diameter rods as the old cylinders and seem to be about the same quality.

I'm going to post a picture of the bent rod along with a warning to check the stops on your loader on another post some time this week.