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how many hours on blades?

Discussion in 'Lawn Mowing' started by FromtheGroundUp, Jul 25, 2008.

  1. FromtheGroundUp

    FromtheGroundUp LawnSite Member
    Messages: 51

    how many hours are ya'll puttin on your blades between sharpening them. it's so damn hot. im beat at the end of the day the last thing i wanna do is sharpen. someone said they sharpen every 10 hrs of cut time. whats your rule of thumb?
  2. smashingpumpkins64

    smashingpumpkins64 LawnSite Member
    Messages: 22

    I sharpen every 15-20 hours
  3. Sweet Tater

    Sweet Tater LawnSite Silver Member
    Messages: 2,123

    roughly them same 15-20 hours of mow time.
  4. sweetz

    sweetz LawnSite Bronze Member
    Messages: 1,599

    OK.....I change my blades about every 3 - 5 hours. I don't sharpen them every 3 - 5 hours. I'd go CRAZY!!! Just keep 5 - 10 extra sharp sets with you for each mower, then sharpen blades once a week (or in the winter once a month or never, depending on location).
  5. brucec32

    brucec32 LawnSite Platinum Member
    Messages: 4,403

    4-5 hours, but that's mulching blades cutting tougher bermuda down low with more dust sucked up. Maybe 8 hours on regular blades cutting tall fescue up higher. But I check them daily and if not sharp, I switch them out. I'm shocked at how many lawns get cut with dull blades.
  6. mike r

    mike r LawnSite Member
    Messages: 143


    what i do at the end of each day is look at the 1/32" edge on each blade, and examine them for any knicks. if any of them have a knick in the OUTERMOST tip 1" of blade, time to resharpen them, otherwise leave them alone. hope this helps.
    buy the way, i'd consider balancing those blades, after each time i sharpen.
    good luck


    STIHL GUY LawnSite Fanatic
    from CT
    Messages: 5,226

    every 2-3 weeks i sharpen and ballance the blades
  8. sweetz

    sweetz LawnSite Bronze Member
    Messages: 1,599

    nuff said :laugh:
  9. doubleedge

    doubleedge LawnSite Senior Member
    from ND
    Messages: 911

    I sharpen them once a week.
  10. LushGreenLawn

    LushGreenLawn LawnSite Silver Member
    Messages: 2,120

    Some of you guys are nuts. Blades should be sharpened about every 4 mowing hours, most manufactures will tell you this.

    I just change them each morning before going out, it takes about 5 minutes, and on Saturday I sharpen 5 sets of blades, which takes less than 1/2 hour. Not exactly 4 hours, but not a week either.

    I can't imagine going for a week or two, my blades are visibly dull when I take them off after 1 day. You guys are inviting all kinds of disease and stress related problems on your lawns.

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