Re: How much weight

Posted by Hugh MacKay on November 01, 2006 at 03:58:19 from (216.208.58.154):

In Reply to: Re: How much weight posted by Janicholson on October 31, 2006 at 19:41:07:

Jim: you are very correct on the placement of the holes, they make a huge difference on these little tractors. Not sure I agree with the formula your using on the earlier post, re: movement in inches of front rockshaft, being equal to hitch lift point in inches, giving you 400 to 500 lbs lift. I think the ratio would be closer to 1 to 3 lifting 500 lbs. The front rockshaft stroke on these is about 8" at end of rockshaft. The 3 point kit I built for my 140 has about a 20" lift range at the lower link hitch point. I designed this hitch so I can switch from 1 point fast hitch to 3 point hitch in 5 min, without use of wrenches. All I do is pull pins from fast hitch pull bar, drop it, install my 3 point links, and I'm going.

I am going one step further with this hitch than just having a lift on back of tractor, which many aftermarket 3 points clearly are. I have been plowing with my 3 point hitch. I have two plows, both IH, both 2x12, same plow except one is 1 point and the other is 3 point. We are plowing heavy clay and for some reason we haven't quite mastered one little issue. We can't get the 3 point plow to pull quite as easy as the 1 point. We've made some minor modifications, however it's been so wet in the past two weeks we haven't had a testing day. I have it figured, if I can master plowing with this hitch, then it will be as close to perfect, as I'm probably going to achive.

My hitch is lifting well in excess of 500 lbs., in fact the 3 point will lift more on same tractor than the 1 point fast hitch. We have been disking with this hitch using an MF-25, 3 point hitch disk. This disk is 24 blade with 18" blades. If we set gang angles as sharp as they will go it will stop 140 in it's tracks. I have however disked axle deep and pulled it ok. I run out of traction long before I run out of power. This disk weighs in excess of 800 lbs, just a shade too much weight for 140 hydraulics, however the 140 will put 12" between disk and ground. I think ideal for one of these offsets would be 20 blade disk with 16" blades. Those extra 4 blades, plus 2" extra diameter on every blade add a lot of weight.

On the hitching end, and tractor ability to pull, I'm not quite satisfied. The 140 clearly pulls easier with it's own factory 1 point fast hitch plow and disk. I am not using hitch stabilizer chains, 3 point lower links are hooked to fast hitch pull bail, making them 22" apart at tractor and about 28" at implement, it should allow steering corrections with implement in ground, however when I start to turn either plowing or disking, my inside wheel on turn looses traction. If I try the same with 1 point it works.

What I need now is a ratio change of shop days to field days. I don't want to change as much, as I have time for, I think I'm quite close to having this work. Plain and simple, I need some fine weather. If it doesn't come soon, I may have to get one of these guys down south to rent me testing ground for the winter.

Replies:

• Re: How much weight Janicholson 06:33:40 11/01/06 (0)

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