Need help with simple design

[Prodirt6000]

I just started trying out Google Sketch yesterday. Pretty cool program. I've been wanting to design and build my own york rake. It wont be the first time I've built attachments, but when ever I do, I run into one simple problem...

I've got a BX 1500. The tractor sits so low that even when I raise the 3PH all the way, the bottom of the implement in the back doesnt come up as high as I would like it to so that it doesnt interfear with objects. So I need to figure out how to get it higher. Would this design work? Ive seen it on a brush hog but wasnt sure what they had it for. Does it make the very back low spot raise higher?

Or should I lower the 2 bottom points on the rake so that the 3PH arms are lower to begin with so then it will raise it higher?

Any ideas?

Thanks

Hope the picture isnt confusing. If it is I can try to explain how it works. (2 hitch pins will be used. One on the rake to the adapter, and one from the adapter to the top link)

 

[Iplayfarmer]

First things first: You can actually get pretty good 2D images from Sketchup by using the Export option in the File menu. Select 2D graphic and it will give you a dialog box to designate a filepath and name.

Now I'll attempt to answer your question. On Bush Hogs, that extra link is actually to allow the implement to move with the contours of the ground. I don't know if that's desirable with the rake. At any rate it will actually make the rear of your implement lower rather than raise it.

To get the back of your implement higher you either need to shorten your top link (maybe even get a new shorter top link) or shorten your link arms that go to the 3 pt. lift arms. In building an implement you can simulate the shorter top link by moving your top link attachment point further back away from the rear of the tractor. The way to do this would be to design the 3 point attachment A-frame at an angle sloping away from the tractor.

If you're having this problem on multiple implements, though; I'd suggest shortening your links to the lift arms and shortening your top link.

 

[charlz]

Have you looked at moving your lift arms 'up a notch' on the sector shaft? They will go higher but won't go as low... may or may not work out on your tractor. I Need to get around to doing this on my tractor. Thing to look out for is it will 'compress' your PTO shafts more so you will need to make sure they are short enough.

 

[J_J]

Just what is you lifting range in inches? Longer arms will give more lifting range. I would build the lifting pins on the attachments close to the ground, to be able to raise higher.

 

[MJPetersen]

There are a couple of ways to get the back to pick up higher. A shorter toplink is one, but also if there are different options on where to connect the top-link. if you connect the t-l lower on the tractor and higher on the implement, then when you raise the implement it will pick the back of the implement more than the front. On a rake or RB you will gain a significant amount of clearance.

Mike