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shearing flywheel bolts, MF 12


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#1 Carl White

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Posted 22 July 2020 - 12:02 PM

Howdy, I borrowed a MF 12 and while baling I broke several shear pins. I found the flywheel has a lot of play and I am assuming that is why they keep shearing. Is there a bushing or bearing on the flywheel. It looks like I can pull the clutch off and replace whatever is worn but I can not find a diagram to know whats behind the flywheel. or am I thinking wrong and there is supposed to be some play? Thank you.



#2 Vol

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Posted 22 July 2020 - 12:37 PM

I am thinking that baler had a shear bolt sleeve in the flywheel that is replaceable like some of the other older balers did at that time. It was designed to wear and prevent wear on the flywheel itself. 

 

Yes, the slop will cause the flywheel to shear bolts. If you could get a slightly larger bolt than is standard to pass thru the flywheel and tighten it down very tight, it might shear a lot less until the shear bolt sleeve could be replaced. 

 

You should be able to source the sleeve and shear bolt size from Agco. 

 

Regards, Mike


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#3 Carl White

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Posted 22 July 2020 - 01:31 PM

thank you Mike. I will give agco a shout!


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#4 r82230

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Posted 22 July 2020 - 02:20 PM

Maybe you can change the bushing in the fly wheel and/or shear bolt.  If I got the right parts manual (attached), shows a bushing for both fly wheel and shear bolts.  #53, 54, & 57.

 

Larry 

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#5 Vol

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Posted 22 July 2020 - 07:33 PM

I think he needs 57, 58, 59, 60, and 61.

 

Regards, Mike



#6 HayMike

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Posted 22 July 2020 - 07:39 PM

And 53 and 54.  Flywheel bushings.



#7 bool

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Posted 23 July 2020 - 04:49 AM

He needs a few 59, 60 and 61. They are the shear bolt, washer and nut. Only one each of 53, 54, 57, 58.

 

Roger



#8 Carl White

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Posted 23 July 2020 - 09:17 AM

this is awesome information. Thank you guys, I appreciate it!



#9 r82230

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Posted 23 July 2020 - 10:28 AM

He needs a few 59, 60 and 61. They are the shear bolt, washer and nut. Only one each of 53, 54, 57, 58.

 

Roger

 

 

Maybe you can change the bushing in the fly wheel and/or shear bolt.  If I got the right parts manual (attached), shows a bushing for both fly wheel and shear bolts.  #53, 54, & 57.

 

Larry 

 

I was only thinking of the "fly wheel had a lot of play" part.  Hence my reference to the replacing of only certain parts that could be worn.  I blindly didn't think about the shear bolts/nuts :( .  Where you don't just buy one, but the whole package (at least in MY case).  I'm bad. :o

 

Larry



#10 I farm with junk

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Posted 23 July 2020 - 12:43 PM

Looks to me all you have to do is loosen the driving dog behind the fly wheel and slide it forward or loosenen the bolt onthe front a install washers to take up the slack.the onlety time the wheel spins freely is when the bolt is sheared! If either of the harden boshings are damaged try roving and urine 180 degrees..
My masses shear bolts in wet hay,I think the plunger knives need sharpened and adjusted. Best of luck

#11 Carl White

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Posted 24 July 2020 - 10:55 AM

any advice on a place to order these parts? My local MF dealer is not very helpful, I am getting the impression its to old for them to care about!



#12 r82230

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Posted 24 July 2020 - 01:32 PM

any advice on a place to order these parts? My local MF dealer is not very helpful, I am getting the impression its to old for them to care about!

 

Even if you give them the part numbers? :huh:

 

Larry

 

PS or they can tell the dreaded word, NLA :( . 


Edited by r82230, 24 July 2020 - 01:49 PM.


#13 Carl White

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Posted 24 July 2020 - 03:33 PM

they have the parts numbers i gave them just no time to look them up apparently, just keep telling me they are working on it






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