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Changing blades

Discussion in 'Lawn Mowing' started by jrebeiro, Apr 16, 2001.

  1. jrebeiro

    jrebeiro LawnSite Member
    Messages: 94

    How often are you guys changing your blades in walk behinds. I have a 48" scag. Should I change them or sharpen them and how often. Also how do you sharpen gator blades?
  2. joshua

    joshua LawnSite Bronze Member
    Messages: 1,226

    1st this depends on how many lawns you cut in a week. 2nd how well do you want to cut the grass, smooth or tear it with the blades giving it a bad cut. i'm thinking that you want smooth and want the grass to maintain a heathly state. personly i change mine every 3 days in the spring, i cut about 50 lawns a week but most are almost an acre.
    good luck to you
  3. TJLC

    TJLC LawnSite Bronze Member
    Messages: 1,308

    I was told to sharpen blades about every 4-6 yards. (80x125 yard) I replace them when the wing (not sure if this is the proper name) wears thin. You must keep your blades sharp at all times. Also make sure they are balanced. As far as sharping gators, I don't use them, so I'm sorry, I can't help you there.
  4. awm

    awm LawnSite Gold Member
    Messages: 3,354

    your question is almost refreshing.sometimes
    i dont think lco give their selves enough credit
    for knowing what jq public doesnt know.
    sharpen the gator like the rest of your blades.
    if by chance you are wondering about sharpening
    multi edge pt (top) probably wouldnt hurt but
    dont take much off. by the way ,when sharpening try to take as little metal off per as possible.luck to ya
  5. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Messages: 4,830

    I sharpen several sets of blades so I can put on sharp blades each day or more often if needed. I use my RBG grinder to sharpen all my blades, Gators included. I talk to another company owner a lot on the job and he changes the blades on his W/B each day. I only use DC's, but each day is the best for a good cut. When you change the blades often, it takes lots less time to sharpen them.

    If you are using double blades, I only change the bottom blade each day, the top one once a week. The top blade only chops clippings so it isn't that important that it is razor sharp.
  6. awm

    awm LawnSite Gold Member
    Messages: 3,354

  7. jrebeiro

    jrebeiro LawnSite Member
    Messages: 94


    So on your site when you say change blades you are actually rotating blades not just chucking them after a day. Cuz I would think that costs would add up by replacing 3 blades at $10 a piece every cutting day.
  8. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Messages: 4,830

    jrebeiro: What I mean by changing the blades is taking off the dull ones and putting on sharp blades. I have over 20 sets of blades, so I don't sharpen them every day. I usually just sharpen all the blades we have taken off during the week on a weekend day.

    NO, I don't throw them away when I take them off, I sharpen them for the next time I put on sharp blades. I do not put the top one on the bottom, I take them all off, put a sharp one on the bolt and the one that was on top, back on top.

    AWM: The bottom blade does all the cutting, since it is the lowest. It needs to be sharp to make a nice clean cut so it don't damage the ends of the grass. The top one only chops the clippings up more, so who cares how clean of a cut that is, as long as it cuts. That is why I just sharpen them once a week.

  9. Fantasy Lawns

    Fantasy Lawns LawnSite Bronze Member
    Messages: 1,912

    when you return to the next cut on the yard ....if you see a dull jagged ...brown edge on the "tip" of the grass growth ..yur blades were dull .....fungi love dull blades ....we switch about every 6-8 hours of mowing ...depending on conditions (wet grass or dusty dry areas)
  10. big mike

    big mike LawnSite Member
    Messages: 21

    this year i'm going to sharpen my own blades and my question is there a trick to sharping them do you do only one side and should i get a bench grinder or should i use one of those one's that fit into my drill,and what doe's rbg stand for? and do you use the balancer that looks like a cone the one were you sit the blade on to balance?any info would help thank's big mike

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