Blade sharpening - how far in toward the lift?

Discussion in 'Lawn Mowing' started by bruces, May 14, 2002.

  1. bruces

    bruces LawnSite Senior Member
    Posts: 648

    How far in is it safe to sharpen blades.

    I read the reply on the Magna Matic forum that said it was OK to sharpen to where the lift starts. That sounds like quite a bit to me, but I am fairly new to the business.

    What is a safe practice?

    Thanks for your input.
  2. Dennis E.

    Dennis E. LawnSite Senior Member
    Posts: 349

    Not making fun but by the time my blades get back that far,at least the blades that have lift ,there is no "lift" left!:rolleyes:
    I usually won't use them anymore when they get too wore down.
    The cut gets kind of shabby. I'll retire the blades when they get to within an inch or so of where the lift starts.
    The sand and leaves,during the fall,eat blades with any kind of lift.
    In a hurry!
  3. Turfdude

    Turfdude LawnSite Bronze Member
    Posts: 1,900

    You should replace the blades as soon as the lifts/sails show any signs of wear. This happens well befor you get close to the base of the lift - even w/ gators!!!
  4. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Theres a BIG difference!

    I really dont think safety comes into play here, but cut sure does!

    You measure a blade from TIP to TIP, diagonally. If this measurement gets too much less than new, the cut will quickly diminish. The more of a 90 degree angle at the tip, the better cutting performance. If its all rounded back towards the lift wing, then it will not cut nearly as well.

    Hope this helps.

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