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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

bucket dump cyl link arms on front end loaders

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Richard Friedri

03-09-2007 16:01:42




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I was looking at some of the newer 30-40 hp 4wd tractors (JD Kubota)and noticed that a lot of them have links to connect the dump cylinders to the bucket. This looks like a doable mod for my Kubota. What do you gain with this design vs the system where the cylinders conect directly to the bucket? Thanks Richard




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135 Fan

03-10-2007 21:41:24




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 Re: bucket dump cyl link arms on front end loaders in reply to Richard Friedrich, 03-09-2007 16:01:42  
The 4 bar linkage gives a lot more bucket dump and roll-back angles. Apparently it gives more force as well. Dave



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Roy Suomi

03-09-2007 20:17:18




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 Re: bucket dump cyl link arms on front end loaders in reply to Richard Friedrich, 03-09-2007 16:01:42  
Believe it or not, There's a lot of geometry involved in this mod..In most cases the use of push links allows the use of shorter cylinders to move the bucket farther , as in Case backhoe loaders....If your loader won't quite roll back the loaded bucket , you're probably better off getting slightly larger diameter , same length cylinders... On some loaders the use of push links allows the push or pull to be nearly parallel with the bucket pins as in crawler loaders , instead of the cylinder being angular to the bucket pins...

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Richard Friedrich

03-10-2007 05:39:00




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 Re: bucket dump cyl link arms on front end loaders in reply to Roy Suomi, 03-09-2007 20:17:18  
Thanks Roy. I have reversed engineered the mod by measuring and tracing the angle of the arms off the new loaders at the dealer. It would be some work including moving the upper cylinder mounts but not too bad. I am currently installing a quick tach adapter and seeing the machine is in the heated shop the wheels in my brain started turning. I don't realy have any problems with how it currently is but was trying to understand the benefits of the new design. The dealer really did not know when I asked. I thought it might give more range of roll or more breakout force...Richard

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