grader blade and wierd angle problem

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bf514921
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grader blade and wierd angle problem

Postby bf514921 » Tue Aug 11, 2015 8:36 pm

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Hi, i have 2 questions for the great members here. i am having trouble identifying what kind of blade i have for my 59 lowboy, it almost looks like i have 2 diffent types cobbled together. my other question is i have a wierd anygle to the blade and not sure what i need to do to fix it, could the blade be assembled wrong? really appreciate the help. let me know if more pictures would help.
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Re: grader blade and wierd angle problem

Postby Barnyard » Tue Aug 11, 2015 9:05 pm

It appears you have an early model regular Cub blade mounted on a Loboy. The angle is cause by the blade being mounted in the center hole. There are five holes on each side of the blade. the angle is determined by which holes are used. Check this site. http://www.tmtractor.com/tm-tractor/gim/blade54_001.htm
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Re: grader blade and wierd angle problem

Postby bf514921 » Wed Aug 12, 2015 6:02 am

yeah i thought sorta the same thing. but the lever that raises and lowers the blade is boxed in and looks like the l-54 version, but the fron supports that connect to it look like the older version.

I wasnt specific on the angle sorry about. if you look at the picture from the front the right side of the blade is lower than the left side, its hard to tell from the picture . i think the frame might be bent a little on the blade not sure,

and thank you barnyad, i really appreciate the response, i am kinda wondering if the blade is parts of 2 put together.
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Re: grader blade and wierd angle problem

Postby Bill Hudson » Wed Aug 12, 2015 6:35 am

Your lift arm and the pieces that go to the blade are from two different versions. This lift arm actually pushes the left side (as viewed from the seat) of the blade down because the lift point is toward the left. Get the correct lift arm and your problem is solved.

Good luck.

Bill
Last edited by Bill Hudson on Wed Aug 12, 2015 10:38 am, edited 1 time in total.
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Re: grader blade and wierd angle problem

Postby bf514921 » Wed Aug 12, 2015 7:00 am

Thanks bill, i will se if i can find a piece, or make one.
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Re: grader blade and wierd angle problem

Postby Bob McCarty » Wed Aug 12, 2015 8:03 am

Here's a link to TM Tractor that shows the size differences between the L-54 and 54: http://www.tmtractor.com/tm-tractor/gim ... b1_001.htm

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Re: grader blade and wierd angle problem

Postby Matt Kirsch » Wed Aug 12, 2015 12:10 pm

For sure, the mismatched parts are NOT causing the angle problem. Those parts only affect the lift range of the blade.

Something is definitely bent.

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Re: grader blade and wierd angle problem

Postby Bill Hudson » Wed Aug 12, 2015 2:44 pm

From TM's photo gallery, a picture of a mounted 54 blade:
Image
Please note that the two steel pieces that attach to the blade frame and lifting arm form essentially a right triangle. The top of the right triangle is attached to the lift arm that is straight. The right triangle is structurally stable, barring the wear that occurs at the attachment points.
Now take a look at the blade with the angle problem:
Image
The top of the right angle triangle is attached to the lift arm that is 4+/- inches further to the left (as viewed from the tractor seat, all my references to left/right are this way). Pushing the apex of the triangle to the left forces the triangle to also rotate to the left, forcing the left side of the blade down and the right side up. This rotation would be even more pronounced if the two lift bars were attached on the left side of the lift arm.

A simple way to test it out is to unhook the two bars and set the blade on the concrete floor. Then lower the lift arm and I'm sure that the attachment point for the lift arm will be 4+/- inches to the left of the two steel bars.

So I will stick with my thought that the proper lift arm will solve the problem.

Bill
Last edited by Bill Hudson on Wed Aug 12, 2015 6:21 pm, edited 1 time in total.
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Re: grader blade and wierd angle problem

Postby Cubfriend » Wed Aug 12, 2015 5:39 pm

I agree with you Bill. The correct lift arm would be the straight one for the Cub 54 blade 49-52. Good luck! Frank P.S. It will still be a mix of parts but it will lift straight. Length may need to be modified for the Loboy.

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Re: grader blade and wierd angle problem

Postby bf514921 » Wed Aug 12, 2015 9:41 pm

yeah i see the right angle problem.

i will see if i can fabricate a strait bar, and get some measurements.

I the right anlge comment really drive it home for me, and understand what i need to do.

and the pictures were helpfull too

thanks again
Brandon
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Re: grader blade and wierd angle problem

Postby Matt Kirsch » Thu Aug 13, 2015 1:18 pm

I don't see the right angle problem. It looks like a perfect right triangle to me, same as the "correct" setup, just twisted to the left.

To me it looks like the plow frame is twisted, pushing everything to the left.

If indeed the linkage is forcing it to the left, simply disconnecting the linkage will show it.

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Re: grader blade and wierd angle problem

Postby Barnyard » Thu Aug 13, 2015 3:44 pm

You need to find a later model (1955 and up) Loboy grader and quit trying to make a 1947/1948 regular Cub grader work This is what a Loboy grader set looks like. Anything else just won't work.

Image

Image
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bf514921
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Re: grader blade and wierd angle problem

Postby bf514921 » Thu Aug 13, 2015 6:27 pm

I will try to find a blade for me ,
but i would like to show my grampa his tractor can still plow snow with the blade he always had, even if it just plows snow once with it, i dont know if it didnt ever have the angle issue. I should see if he has any old pictures of him using it.

the plow itself is is a conglomeration of parts, i am not even sure if its 2 different types or 3. the fact that it works at all still amazes me.
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bf514921
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Re: grader blade and wierd angle problem

Postby bf514921 » Thu Aug 13, 2015 6:33 pm

another quick note, only parts of it are the older 49-52 style, i think (still learning) the mounts and part of the arm are correct for the low boy, as best i can tell.
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bf514921
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Re: grader blade and wierd angle problem

Postby bf514921 » Thu Aug 13, 2015 8:22 pm

well after the great explanations and help from the members of this forum i think i may have multiple issue to correct but i will start with the worst.

i took the blade off the front support straps and set the blade on the floor, wasn't level. at this point i was wondering if my floor was bad. but looking at the fram of the blade it just wasnt right. so i took the large pin out that holds the blade on the tractor. the frame on the side that was high is bent, but i think the picture of the pin speaks for itself, no idea how it got that way. so now i get to learn how to either bend the frame back or possible replace the one end with a new piece of tube steel and see if i can get this blade straitened out.

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