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Implement Alley Discussion Forum

3 pt blade pivot rusted...

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HobbyFarmerInWI

02-19-2005 20:20:31




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Bought a 3 point blade today for my tractor. It should be able to pivot, but it is rusted firmly in place. How can I get it free?

My thought was to take the grease zerk out that has been unused for years, and fill it with PB Blaster. I will then release the spring loaded pin that holds blade in position, and move snow. My hope is that it will work itself free.

Any better idea is more than welcome!

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Chuck, WA

02-21-2005 13:24:51




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 Re: 3 pt blade pivot rusted... in reply to HobbyFarmerInWI, 02-19-2005 20:20:31  
I bought a heavy 3-pt Rhino blade from a retired friend who reconditions tractors and implements and resells them. He hadn't checked this one out yet when I bought it, so didn't know it was stuck - no rust, just dried grease from never having been moved or lubed in its life - until I called him back and told him how hard I'd tried to rotate it. I pulled the zirk and dug out the dry grease, then one-by-one tried all of the various spray "looseners" suggested by various friends and on these forums, in the zirk hole and around the bushing, then pulled on one end with a comealong, and whaled on it with a sledge. He told me to bring it back and he'd unstick it or buy it back. I didn't want to sell it back because I knew I wouldn't get another at the price I'd paid, so really wanted to unstick it bad. He said he'd never worked on anything that wouldn't come loose by heating.

Well, he heated, and heated, and heated! This guy is no greenhorn, but an experienced tractor and imnplement mechanic. Wouldn't budge. He called the guy he bought it from to ask if the guy had welded it in place or otherwise mechanically locked it, and the guy said he hadn't but never had a need to rotate it, so never bothered to lube it.

He finally put it on his tractor - a big, huge old Farmall - and repeatedly rammed one end into a tree. He dug some prety good ruts, and it took quite a few strokes, but he wasn't about to let it beat him. He kept at it until it finally started to move, and eventually got it freed up and working. Nothing bent, no damage! I keep it well lubed, and it turns just as smooth as can be. He admits it's the toughest he's ever seen. I'm delighted to have an excellent blade!

Chuck, WA

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Dave H (MI)

02-20-2005 07:23:47




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 Re: 3 pt blade pivot rusted... in reply to HobbyFarmerInWI, 02-19-2005 20:20:31  
I always use heat to move stuck implements. Followed by well used motor oil as it cools down.
It doesn't need to be red hot to break loose. Just enough to expand one side more than the other so it weakens the rust. Depending on how bad it is, should loosen up. I am not familiar with your exact blade, so use caution and make sure there is nothing the heat can damage or catch fire. For steel on steel rust, heat has always been my best solution.

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Dave H (MI)

02-20-2005 07:26:58




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 Re: 3 pt blade pivot rusted... in reply to Dave H (MI), 02-20-2005 07:23:47  
One more thing...be wary of suggestions to put one end of the blade against a tree or something and trying to force it loose. You CAN bend the blade. Your idea of pulling the pin and plowing is a better way to stress the rust bond.



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HobbyFarmerInWI

02-20-2005 12:49:51




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 Re: 3 pt blade pivot rusted... in reply to Dave H (MI), 02-20-2005 07:26:58  
I did try to move it against a LARGE rock, but no luck. I only put enough pressure on it to see if it would let go quickly. I did not try to force it at all. Was worried about bending the blade or part of the 3 pt.

I will try the heat later today.



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