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Super A Sickle Bar Blades: Serrated VS Knife Edge

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patpeery

06-18-2003 12:55:44




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I have rebuilt 2 bars for my mower, one with regular knife edge and when i went back to get more for the second one, all they had was the serrated edge blades, so i used them on the other one. Tell me please in all of your experiences with both types, the advantages, disadvantages, when to use one versus the other, etc. Also, can the serrated edge blades be sharpened? I eagerly await your expert opinions! THANKS

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Vern

06-18-2003 21:27:17




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 Re: Super A Sickle Bar Blades: Serrated VS Knife E in reply to patpeery, 06-18-2003 12:55:44  
The guard plates are serrated. The bar plates should be serrated for cutting alfalfa, clover etc. The bar plates should be smooth when cutting grasses and the like as the serrated ones will pull the grass stems through and not cut them. The result is a jammed sickle bar which is a lot of work to free up.



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Wayne Swenson

06-18-2003 20:35:00




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 Re: Super A Sickle Bar Blades: Serrated VS Knife E in reply to patpeery, 06-18-2003 12:55:44  
Just remember to sharpen on the top (angled) side. The bottom of the sickle section needs to be flat to correctly match up with the ledger plate.

Remember, don't put your fingers in between the guards when lifting the cutter bar for transport.

Mowing alfalfa was one of my favorite tractor driving jobs growing up on the farm. We had a #27 mower mounted on an "H" with a belly pump lift. With a single front wheel and steering knob I could turn corners on a dime & give 9 cents change!!

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gene b

06-18-2003 19:56:16




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 Re: Super A Sickle Bar Blades: Serrated VS Knife E in reply to patpeery, 06-18-2003 12:55:44  
Back 50 or so yrs the sections were all serrated until they went to the blacksmith shop to be sharpened. The ledger plates also need to be replaced on the guards this all depends on what you are mowing and what kind of job is required when finished.



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Vern

06-19-2003 22:36:25




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 Re: Re: Super A Sickle Bar Blades: Serrated VS Kni in reply to gene b, 06-18-2003 19:56:16  
Gene;
I beg to differ with that statement. We had smooth edge blades as well as serrated in the '40s. Always used the smooth blades when cutting timothy.



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here, try this

06-18-2003 16:24:39




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 Re: Super A Sickle Bar Blades: Serrated VS Knife E in reply to patpeery, 06-18-2003 12:55:44  
underserrated sections can be resharpened. overserrated (serrations on top) are self sharpening.



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Bill B

06-18-2003 13:35:40




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 Re: Super A Sickle Bar Blades: Serrated VS Knife E in reply to patpeery, 06-18-2003 12:55:44  
I like the serated blades better, as they work better with a mower that is not perfectly aligned, with nice sharpe guards. They can be sharpened the same as the smooth edged, but eventually the tiny teeth get ground away.



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scotty

06-18-2003 13:08:05




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 Re: Super A Sickle Bar Blades: Serrated VS Knife E in reply to patpeery, 06-18-2003 12:55:44  
Pat, When I rebuilt the 16 A mower for my A the cutterbar was bent so I just went ahead and ordered a new bar with all new knives. The local Case IH dealer had one in stock, with the serrated knives for about $75. It cuts very good and I am happy with it. As far as sharpening, you could probablly sharpen it with an angle grinder on opposite side of knife from serrations. I am not an expert by the way!
scotty

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