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Best Way To Sharpen Lawn Mower Blade
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Posted by
skane1 3 (
My Page) on
Thu, Aug 13, 09 at 16:51
| I have never sharpened a mower blade blade before and I want to know how to. |
Follow-Up Postings:
RE: Best Way To Sharpen Lawn Mower Blade
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| If you never sharpened one before odds are you don't have some sort of grind wheel. If that is the case, take it of the crank, go to your dealer hand it and five dollars over the counter and it will come back sharpened and hopefully balanced. |
RE: Best Way To Sharpen Lawn Mower Blade
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| Can you use a wrench and a file with some accuracy? If not just buy a new one or pay to get the old one sharpened. |
RE: Best Way To Sharpen Lawn Mower Blade
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| You need a 3 1/2" vise with a good solid mount and a 10" flat file. Alternate method; you need a bench grinder. if the blade edges are in bad shape, you'll need the grinder anyway. The file is used to maintain a good blade, and the grinder is best for restoring cutting edges that have been damaged/worn away. Like roadbike said, sometimes its better just to take it to the shop. If its really bad, replace it. Here's what I go by; if the airfoils on the back of the blade are not worn thin, I'll sharpen. If they are too thin or already chipping away, replace. |
RE: Best Way To Sharpen Lawn Mower Blade
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| Thanks for all your help in this matter. |
RE: Best Way To Sharpen Lawn Mower Blade
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| I just use a grinder....the one with two grinding wheels, one on each side. Worked like a champ. Good as new. Might not look very nice, but you can tell by looking that it is sharp enough and cuts well on the mower. |
RE: Best Way To Sharpen Lawn Mower Blade
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| That's a 'bench grinder'. That's what the shop guys use most of the time. The file is for the perfectionists who don't want to remove more steel than necessary and want to keep the original line and shape. Plus the grinder can overheat the steel and make it brittle if you dwell too long in one spot. You want to avoid heat-discoloration of the steel where it turns blue and gold. Actually, guns used to be 'blued' by heating the steel, and some guns have 'straw'-colored parts done the same way. It just depends on a few degrees of difference in the heat. |
RE: Best Way To Sharpen Lawn Mower Blade
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| Belt sander works work better than any bench grinder. |
RE: Best Way To Sharpen Lawn Mower Blade
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Yep, especially if you have one!
RJ |
RE: Best Way To Sharpen Lawn Mower Blade
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| I think a hand grinder is the easiest. I use a 4 1/2 grinder for my blade sharpening. |
RE: Best Way To Sharpen Lawn Mower Blade
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| ok, dumb question. It's the leading edge (the lower edge as the mower sits on the ground) that needs to be sharp, right? Thanks for posting, everyone. |
RE: Best Way To Sharpen Lawn Mower Blade
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RE: Best Way To Sharpen Lawn Mower Blade
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| "ok, dumb question. It's the leading edge (the lower edge as the mower sits on the ground) that needs to be sharp, right? " You can get into trouble with upper and lower. Most mowers, the upper edge is what is sharpened. Since mowers run clockwise (as viewed from the top) use that as your guide in determining the direction of the "leading edge" |
RE: Best Way To Sharpen Lawn Mower Blade
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- Posted by baymee LehighValleyPA (My Page) on
Mon, May 31, 10 at 7:08
| An easier way might be to say that the beveled part of the blade, the machine-ground edge, always faces up. |
RE: Best Way To Sharpen Lawn Mower Blade
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| Actually, the machine ground edge "usually" faces up. Several electrics are an exception- although there are others in gas powered as well. |
RE: Best Way To Sharpen Lawn Mower Blade
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- Posted by baymee LehighValleyPA (My Page) on
Mon, May 31, 10 at 19:21
| Didn't know that. Never saw any yet. |
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