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MF 12 Baler... What's that part called?

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Art

09-24-2001 22:02:26




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Broke down about 100 bales into the afternoon. PTO turning fine all the way to the baler, but no action from there on. Can still turn the baler over using the flywheel and the help of a strong fellow and two small boys, so nothing seems to be out of whack there. Would note that when turning the flywheel there's enough grab to turn the PTO shaft. As mentioned, when turning the PTO with the tractor, the PTO is the only thing that turns.
Removed the 9/16 head bolt from the end of the PTO where it "goes into" the baler, pulled the PTO out of the baler, and found a part that, at first glance, looked like a roller bearing. Of course it isn't. Think this could be the problem. Any thoughts? Anyone know what this part might be called?

Thanks,

Art

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George S. again

09-27-2001 03:47:44




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 Re: MF 12 Baler... What's that part called? in reply to Art, 09-24-2001 22:02:26  
Art, When I made my previous reply, I suspected that there is a one way clutch under the flywheel, as I remember that the flywheel, I think it is, can spin free in one direction. The piece you found is one of the rollers out of the sprag clutch that lives under the slip clutch just before the flywheel. I went to the farm yesterday and got my parts book for Massey #9 baler, pretty much the same as #12, except for wider pickup and 2 packer forks on #12. On pg.4 & 5, item #52 is the sprag clutch. I guess I'll have to put them on the list of items to check on the #10 balers we have. Make sure that you have a OEM shear pin in the flywheel, too. Let us know what you find and if more ???s I'll try to give answer. For now, George

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George S in the real NY

09-25-2001 04:45:13




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 Re: MF 12 Baler... What's that part called? in reply to Art, 09-24-2001 22:02:26  
Hi, There is a special bolt that couples the flywheel to the drive line, it is the shear bolt. Sounds to me like you got other serious problems as it should NOT take that much effort to turn the baler. One of the boys should be able to roll the flywheel thru the cycle. Reviewing your note, I think the shear bolt might be ok as the flywheel still turns the baler. On the front side of the flywheel is a slip clutch. My guess is that is toast, given the fact that the baler is so hard to turn.

I have a few #10 and a #3. One 10 that I used got hard to run and the plunger guide area got too hot to touch. The guides had gotten warped and the plunger was binding real bad. I use a JD 40 Std to PTO run the baler. That last time out, I knew something was wrong because the little tractor was really working hard to keep the baler going. I only had about 15 bales of straw to get done before it rained. Then I tore all the guides and shims out. Got it partly redone, maybe this winter.

Look and see if the flat piece of steel on the knife side, bottom of the plunger box is all wavey. Owners manual tells procedure to set up guides. It takes work but when you get done it'll be a real nice baler. Massey did a real great job on those machines, #3 thru #12. Lots of bronze bushings everywhere. Regards, George

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sammy the RED

09-25-2001 00:35:32




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 Re: MF 12 Baler... What's that part called? in reply to Art, 09-24-2001 22:02:26  
Did you check the shear pin ?



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Art

09-25-2001 07:14:48




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 Re: Re: MF 12 Baler... What's that part called? in reply to sammy the RED, 09-25-2001 00:35:32  
Yep, shear pin is fine. Thanks for the responses. Much appreciated.

Art



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paul

09-25-2001 09:37:19




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 Re: Re: Re: MF 12 Baler... What's that part called? in reply to Art, 09-25-2001 07:14:48  
It's normal to take a bit of effort to spin a baler by hand if it stopped with some hay in it....

I'm only familiar with 1 NH baler, but it has 2 little spring-loaded pins in the pto just like you are talking about. They allow the baler to keep spinning when you stop the tractor pto, let that flywheel spin down. (Like an OCR the Ford N folks use, or a socket wrench.) These 2 little plungers lock on a lip in one direction, and ride over the ramps in the other direction. My ramps wore down & were giving me a lot of problems, I spent some time with an angle grinder & Dremel tool reshaping them.

The NH manual would call them clutch pins & assembly. I have no idea if your make of baler has the same.

--->Paul

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