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Implement Alley Discussion Forum

MF #12 baler knife removal

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WD

09-10-2003 11:32:59




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I cannot remove the bolts holding the knives in my MF #12 baler. I have tried liquid wrench, heat, impact, sledge, and 357 mag. Please help.




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WD

09-12-2003 06:43:36




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 Re: MF #12 baler knife removal in reply to WD, 09-10-2003 11:32:59  
I have shapened the knives in the machine. The big problem is not being able to shim the knives close enough to get a good cut. The bales are always light on the cutting side and do not bale evenly.



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Rob

09-12-2003 13:56:30




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 Re: Re: MF #12 baler knife removal in reply to WD, 09-12-2003 06:43:36  
One of the reasons my #12 stays in the yard lately. Some things to ponder besides the knife clearance. Do you have the manual for it? Do you have bale retarders and/or hay wedges installed in the bale chute? Is the plunger to chamber clearance correct? How heavy a windrow are you putting thru the baler? Are the packing fingers in time and adjusted properly? Is it a manual or hydraulic bale tensioner? The point is there could be one or more reasons for what's (not) happening. Sharp knives and their clearance is only part of the equation.

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WD

09-13-2003 07:39:56




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 Re: Re: Re: MF #12 baler knife removal in reply to Rob, 09-12-2003 13:56:30  
I have amanual.
It has 3 wedges each side and two on bottom.
rebuilt wear plates on plunger and set clearance.
Packing fingers in time.
Manual bale tension. Runs about 65# on 39-40" bales.
When I have full windrows and the noisture is correct, bales are not too bad. If it is too dry or windrows are light it is terrible. Banana shaped and strings fall off knife side. If I try to get strings too tight, it misties. I think when hay is too dry the knives tear and shread hay and it ends up light on that side. I,m thinking about adjusting with the 357 and getting a JD 336.

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Rob

09-13-2003 18:51:56




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 Re: Re: Re: Re: MF #12 baler knife removal in reply to WD, 09-13-2003 07:39:56  
Sounds good to me. Like I said, that's why my red one's parked and the green one keeps going, and going ... . Good luck with finding what you want.



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Chet Glenn

09-11-2003 13:55:19




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 Re: MF #12 baler knife removal in reply to WD, 09-10-2003 11:32:59  
I ran into the same thing, they wil not budge and ain't no telling how long they been like that. I just crawl in to the pickup area and sharpen them with a die grinder. Of course the tractor is not even close to the baler and I have my haying partner there to be safety observer and ensure the plunger does not move.



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marlowe

09-10-2003 17:42:08




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 Re: MF #12 baler knife removal in reply to WD, 09-10-2003 11:32:59  
clean out [[[ALL]]] the hay and use a angle grinder to sharpen them a lot faster and a hole lot easier



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Rob

09-10-2003 19:31:13




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 Re: Re: MF #12 baler knife removal in reply to marlowe , 09-10-2003 17:42:08  
O.K., but I'd be more concerned about making absolutely certain that the baler's plunger can NOT possibly, NO way, NO how move rather than a fire.



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Rob

09-10-2003 14:42:20




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 Re: MF #12 baler knife removal in reply to WD, 09-10-2003 11:32:59  
Are the "bolts" Allen heads? Are they rounded out/stripped? Given the Baler is +/- 40 years old, it's not surprising. I've heard of owners sharpening the knives in place to save the grief of removing them. Here's a quote from the MF 12 Manual:- ""Add an anti-seize type lubricant to the countersunk screws and reinstall the knives, ..." I doubt that was done the last time, if ever the knives were out. One trick is to weld hex head bolts to them and then use the .357 - no, just kidding!, your impact. Hope this helps. Good luck with it.

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