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Leroy 11-16-2012 05:29:07 69.88.205.38 Report to Moderator	For years and years bottom serated was used for grass only with top serated only on combines for dry straw and smooth sections were the earliest type for mowers because they haden't yet had the ability to make a serated section. In sone situations in very fine grass then the smooth works better than a serated as it will shear that fine blade of grass instead of grabing and holding it. You can sharpen a bottom serated section for several times but you cannot sharpen a top serated section and the ones that think the top serated are better for hay do so because they will last a bit longer when new but then they throw away the sections instead of sharpeming them. I am in the croud that only uses bottom on a mower and they will be sharpened till no more serations on them. Amd top is all I have ever found for a combine as that is what the makers figured worked better back when combines first came out and probably was figured out with the grain binder. [Reply]   [No Email]
Carlyle Hoffman 11-16-2012 10:15:38 74.71.111.250 Report to Moderator	Re: top/bottom serrated, more confused than ever! in reply to Leroy, 11-16-2012 05:29:07   In the JD mower oper manuals it refers to using SMOOTH sections with serrated GUARDS for grass hay. Like Leroy said that reduces the ripping or grabbing effect. Smooth sections and smooth ledger plates work good in early and later soft cut ALFALFA. [Reply]  [No Email]