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 12-07-1999, 00:00 Post: 10709
John



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 Weight on Back Blade

I have a John Deere 4100 tractor with a Woods 5 ft back blade and a loader. I would like to make a concrete weight to hang on the frame of the back blade and use the weight and blade as ballast for the loader, since I like to use the loader and blade together. The blade itself is not heavy enough for the counterweight. Has anyone ever tried this? Does it affect the operation of the back blade? Does it affect the balance of the tractor? Thank you for your responses.






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 12-07-1999, 00:00 Post: 10715
Roger L.



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 Weight-on-Back-Blade

For one of my tractors, I went to the metal shop and had them chop and punch me up a pile of plate steel half an inch thick about two feet long and about a foot wide. Each one got 4 holes punched in it for mounting. Then I drilled the blade and mounted about 250 pounds of these on the back of the blade. Works pretty good - a definite improvement.
My buddy saw this and went one better with a piece of 2 1/2" diameter solid steel round stock. His matches the blade length (seven feet) and is held to the upper rear surface of the blade with some U-bolts. Painted, it looks like stock and works even better.
The other tractor I treated like you are describing in that I built a bottom onto the blade's 3pt frame and filled it up with rocks. It works better than it used to, but not as well as having the weight lower and farther back as it is when it is on the blade.






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 12-07-1999, 00:00 Post: 10726
JerryG

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 Weight-on-Back-Blade

I needed weight on my blade, box blade and on a plow. I wanted a weight that would be easy to change from one to the other. I got a large 6" dia. pipe with about 7/8" wall. The man at the steel place said it weighted 47 lbs./ ft. I cut it to five feet to fit my tools. Then welded a hook on top to lift it. To be able to change it between tools I welded two 3" pieces of channel about 5" long to the bottom of the pipe. I then welded two piece of 4" channel about 5" long to each implement just like stake holes on a pickup. Now when I need it, I hook a chain to the hook, pick it up and drop it in the stake holes on the implement that I want to use. The pipe cost around $7/ft. At 5' that gives me 250 lbs that I can use on all my toys.






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 12-07-1999, 00:00 Post: 10734
Nuclear_Weapon7



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 Weight-on-Back-Blade

Why should one need weights on the rear blade ?
The tractor's hydraulic should be able to push the implement down as well as up as does my Belarus. Why almost no other trator's hydraulic has the capabilty to push the implement down ?
Nuclear_Weapon7.
Hyderabad,
Sindh,
PAKISTAN.






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 12-07-1999, 00:00 Post: 10739
Roger L.



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 Weight-on-Back-Blade

Well Nuc, its because of physics. When you use a 3pt to put down pressure on the blade the effect of the reaction force is to lift the rear tires. All things being equal, it is a no gain situation traction-wise. If the tractor is very heavy - as the Belarus is - then you have enough extra tractor weight that you are able to get away with using some down pressure on the blade. And you will still have enough extra tractor weight for traction. The penalty is that when you don't need that extra weight, the tractor still has to carry it around. Modern tractor design is toward high HP/weight ratios with weight added where and if it is needed.
And yes, there is still a lot of good to be said for the older heavier designs. Anyone who needs to get out in the rough and do some real serious tractor work will appreciate the old heavy and long wheelbase tractor designs. This is one reason why one sees so many of the older John Deere Ag tractors still being used. But this design philosophy just doesn't work for the lightweight compact tractors.






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 12-08-1999, 00:00 Post: 10746
John



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 Weight-on-Back-Blade

I think the point of my question on the weight on the back blade may be a little misunderstood. The point of my wanting to add weight to the back blade was to have ballast for the loader, not for additional weight to force the back blade down. Any comments?






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 12-08-1999, 00:00 Post: 10747
bo



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 Weight-on-Back-Blade

Life is very simple, your tractor is a see-saw with the fulcrum being somewhere in the middle of the tractor. Too much weight in the front of the tractor-read load in bucket- and not enough in the back and you wind up on a three point landing looking at the ground {bucket and two front tires}and going no where. If your bucket is real high when this happens then you may merrily be flying throught the air playing superman. Depending if you got loaded rears and the weight of your tractor and the amount of load your bucket can lift you have to add enough weight on the back to counterbalance the front load. Read your owners manual-it should be real enlightening or just add about 400-600 lbs. on the back and carry your loaded bucket real low . The tractor will tell you if you have enough. bo






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 12-08-1999, 00:00 Post: 10753
Roger L.



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 Weight-on-Back-Blade

John, I understood the question. And Bo is right that it is a see-saw. You need distance as well as weight to balance the loader. The more distance you get from the front bucket the less weight is required. Putting the weight on the blade gets you the most distance....and then the question turned to other possible benefits or drawbacks to putting the weight at the blade. So far I haven't heard any drawbacks. But there are bound to be some.






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 12-08-1999, 00:00 Post: 10772
PaulB



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 Weight-on-Back-Blade

So far this is only on paper, so I thought I would throw it out for comment. I am considering purchasing a set of lifting weights and a barbell - I think thats what you call the metal bar you pult the weights on - and having the barbell welded to the rear of my backblade. If I want to move snow, I will leave all weights off. If I need to ballast the front loader, I can add 300 pounds of weight. Before I spend the time and $, does anybody think this will fail (i.e., weld won't hold up, not enough total weight, or some other flaw I have not thought of? Blade is a Woods 5 footer, tractor is a Kubota B1700.
thanks
Paulb






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 12-09-1999, 00:00 Post: 10809
dsg

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 Weight-on-Back-Blade

PaulB,
I don't know about welding or if it will work, I do know a little about
weight lifting, ie bar bells. Make sure you get a competition/profesional weight bar. It will be all steel and weigh 45 lb.
David






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Discussion Boards > Active Subjects > Messages as Posted > Tractor Implements Forum

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