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  1. #1
    Bronze Member
    Join Date
    Jul 2011
    Posts
    51
    Location
    New Zealand
    Tractor
    International 434, Massey Ferguson 362, Massey Ferguson 35

    Default Repairing mower blades

    I have recently bought an old, abused triple bladed slasher mower (what you might call a bush hog).

    The blades are well worn and don't crossover and so leave two narrow strips of uncut grass.
    I guess they have worn so much they've lost a half inch or so off end end of each of the three blades.

    My question is, what do you think of the idea of welding pieces of old hacksaw blade onto the end of each mower blade ?
    I've got access to plasma cutter, mig & arc gear.

    This seems far more economical than replacing the mower blades.

  2. #2
    Bronze Member
    Join Date
    Jul 2011
    Posts
    51
    Location
    New Zealand
    Tractor
    International 434, Massey Ferguson 362, Massey Ferguson 35

    Default

    I probably should have mentioned the blades are about 90cm long (35 inches) from tip to tip.
    They probably need to be about 94cm to get rid of the grass strip.

  3. #3
    Silver Member Bear Foot Farm's Avatar
    Join Date
    Jan 2010
    Posts
    187
    Location
    Eastern NC
    Tractor
    MF-175

    Default Re: Repairing mower blades

    This seems far more economical than replacing the mower blades.
    Buy new blades and they will last for years

    Weld pieces on the end , and they will last hours

    Dorper Sheep and Maremma Sheepdogs
    [

  4. #4
    Platinum Member
    Join Date
    Jul 2011
    Posts
    594
    Tractor
    Mahindra 4510

    Default Re: Repairing mower blades

    Any type of serious wear or modification will tend to show up in the form of gear box wear, I agree with a new set of blades AND bolts along with a complete gear box service. For old brush hogs the best way to service them is to run em for a while with a welding magnet stuck to the drain plug to collect filings, drain the fluid, flush it with a little fluid and refill em, run a little more and test bleed the drain to see if it comes out clean, if not you may need to change it again finally you should fill it to recommended level and check every time before use.

  5. #5
    Super Member RickB's Avatar
    Join Date
    Sep 2000
    Posts
    7,038
    Location
    Eastern NY
    Tractor
    Case 885, JD 730D, Ford 4000

    Default Re: Repairing mower blades

    Quote Originally Posted by Fixemall View Post
    Any type of serious wear or modification will tend to show up in the form of gear box wear, I agree with a new set of blades AND bolts along with a complete gear box service. For old brush hogs the best way to service them is to run em for a while with a welding magnet stuck to the drain plug to collect filings, drain the fluid, flush it with a little fluid and refill em, run a little more and test bleed the drain to see if it comes out clean, if not you may need to change it again finally you should fill it to recommended level and check every time before use.
    How many rotary cutter gearboxes have you actually seen that have drain plugs?
    We have too much gun control.
    What we need is more idiot control.

  6. #6
    Super Member RickB's Avatar
    Join Date
    Sep 2000
    Posts
    7,038
    Location
    Eastern NY
    Tractor
    Case 885, JD 730D, Ford 4000

    Default Re: Repairing mower blades

    Quote Originally Posted by shanehobson View Post
    This seems far more economical than replacing the mower blades.
    Until the weld or blade fails, sending shrapnel through one of yout tractor tires, or a neighbor's (add personal property description here).

    Having access to welding equipment doesn't provide the knowledge necessary to know what welding projects are simply bad ideas. Adding pieces to rotary cutter blades is a bad idea.
    We have too much gun control.
    What we need is more idiot control.

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