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Discussion Forum

14 T Knife sharpening

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fa

04-23-2003 19:27:38




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Anyone ever pull down the knives on a JD 14 T or 24 T baler to sharpen them? They look easy enough to take out. Should I take them to a sharpener or could a novice do it? Is there a desired angle on the cutting edge that anyone knows of?




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Hugh MacKay

04-25-2003 03:18:23




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 Re: 14 T Knife sharpening in reply to fa, 04-23-2003 19:27:38  
fa: I used to sharpen my plunger knife daily. If yours hasn't been done in awhile, you will not only notice smoother sides on the bales. You will see a tremendous difference in your hp utilization. You will think someone switched tractors overnight on you. My dad got me started on this 45 years ago. We quite regularly hitched Farmall 130 to baler, not for a big days baling. Rather just to fill in if larger tractors were busy.

The shear plate and that knife quite important also it be in good shape. Most balers also have adjustment on plunger to set plunger knife closer to shear. Get it working like a good pair of sicissors. I said most balers, probably should have said all. I am not familiar with your Deere baler but I'm sure it has adjustment along with replacable knife and shear plate. Remember these knives and shear plates don't last forever.

Also remember, there really only were ever a few poor quality balers on market. Most problems were adjustment.

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David from Kansas

04-24-2003 07:36:39




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 Re: 14 T Knife sharpening in reply to fa, 04-23-2003 19:27:38  
I've used both methods, removing the knives lets you do a better job. They aren't that bad to remove and the stationary knife should also be sharpened. I have also used an angle grinder without removing the knives but you can't do as good a job and you have to be pretty flexible to get inside there to do the job. Just try to retain the original angle, in other words, grind all the face of the angle, not just the cutting edge. Good luck.
David

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fa

04-23-2003 23:25:58




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 Re: 14 T Knife sharpening in reply to fa, 04-23-2003 19:27:38  

was talking about the plunger knife. Will try it between cuttings. Thanks



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Fudd@work

04-23-2003 20:36:02




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 Re: 14 T Knife sharpening in reply to fa, 04-23-2003 19:27:38  
Do you mean plunger knife or twine knife? The plunger knives can be removed and sharpened. I use the belt sander at work and follow the original profile. It seems to make better bales when sharp. The arms that the twine knives are mounted on can be removed and you can sharpen these also. I use a fine file and try to keep the original profile here too. The owners manual covers all this really good.

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Roy in UK

04-24-2003 05:50:05




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 Re: Re: 14 T Knife sharpening in reply to Fudd@work, 04-23-2003 20:36:02  
"I use a fine file and try to keep the original profile here too". I could not agree more! My late father was doing just that with the ram knife of an A-C 300 baler we once had. A neighbour called to see us and seeing dad with knife in the vice, said "Oh you don't want to mess about like that, let me take it home and I will do it for you!" he returned with it later in the day having sharpened it with AN ANGLE GRINDER, at totally the wrong angle and turning the knife blue in the process. Suffice to say the knife was completely buggered and we had to buy a new one, I seem to remember replacing the shear plate while we were at it.

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Roy in UK

04-24-2003 08:38:28




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 Re: Re: Re: 14 T Knife sharpening in reply to Roy in UK, 04-24-2003 05:50:05  
When I said this guy used an angle grinder I mean that he really "used" it i.e. he must have really pressed on hard, heated up the metal too much and ruined the temper.



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