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#91
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Gilles,
It may just be that I am not understand what you are saying due to the language difference, so don't let my response offend you. Quote:
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#92
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No offence at all Jon, I just can't explain simple law of physic in plain English but your right "pushing" is not the right way to describe what's "Happening" a good way to say it can be "weight transfer" and maybe "tension transfer". The sub frame not only give some strength to the structure, he also help distributed the tension in several points. We are dealing with a very short wheelbase and limited lifting capacity here, you need to keep the front bucket has close as possible to the front end, take PF engineering plan as a example, most guy who build them install their post in the middle of the wheelbase or a bit further behind. Their is a logic explanation to that who can be explain with graphic and physic laws but let just use a good "Rule of thumb".... If the majority do it that way it's because it work!
Good discussion by the way, maybe we getting somewhere with that
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Gilles. 1988 2072 401 54" hyd angled blade 1988 1872 364 snowblower/C50 deck 1976 1650/QA42A blower/44A deck/standby 1976 1450TS/Sleeve hitch/44A deck/in storage 1963 100 (red)/in storage 2010 Kubota 2380-2/42" infinity deck (engine swap) |
#93
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I do think I understand what you are saying Gilles, but I don't think that having it mounted where it is is an issue. I do agree that the further back you mount the loader, and the closer you put the load to the front, the better it is. That's simple physics. Go to extremes and you see the benefit. If the post was at the extreme rear of the tractor, it would make the need for counter weight basically unnecessary. However, it would take far more pressure to lift the load (on the hydraulic system) given the same basic design. The thing is, added frames and brace work don't change the load point. Maybe we're on the same page and just not communicating well.... Not all loaders vertical mount is in the center of the tractor, and not all loaders have frames to the rear of the tractor.
Take IH's loader model 2350. It uses only the tractors frame, and the vertical post is forward of center. I understand this tractor is much larger, but the principles and physics are the same. It's just a larger scale. 2350.jpg |
#94
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Physics law are the same but we dealing with a different requirement and of course a frame with very short wheelbase and rigidity. I still holding my ground about the sub frame and center post position on a GT but even if we disagree I'm not questioning your statement Jon.
You can download a "Boring" document (.PDF) from this link, I like to think he can help anyone interested in the conception of a FL or at least have future plan to build one but honestly it's pretty rocket scientist stuff....LMAO http://www.nacomm03.ammindia.org/Articles/Rat007.pdf
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Gilles. 1988 2072 401 54" hyd angled blade 1988 1872 364 snowblower/C50 deck 1976 1650/QA42A blower/44A deck/standby 1976 1450TS/Sleeve hitch/44A deck/in storage 1963 100 (red)/in storage 2010 Kubota 2380-2/42" infinity deck (engine swap) |
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