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  1. #1

    Join Date
    Aug 2016
    Posts
    11
    Location
    Netherlands
    Mower
    Toro

    Toro GTS150 Commercial - very interesting shaped blade - normal?

    Hi there.

    I'm busy giving some TLC to my relatively cheap acquired Toro Commercial 22154 pushmower. After kind of fixing the biggest issues with carburetor it now runs like a champ again. But it looks like the shaft is somewhat bend, but I will look at that later when I'm feeling lucky with a hammer.

    When investigating the vibration, I removed the blade and the notice it is very oddly shaped but I have a hard time figuring out it is per design curved because it is a native mulcher or this blade is just useless or doesn't match my mower. Feeling wise I would say that the curve is useless on a mower as I always assumed you need a bigger part of the blade to be touching the grass and not only the tip of the blade.

    I tried to make a picture of the blade:
    toro_blad.jpg


    Should I just buy a new blade assuming the new one is straight?

  2.  

  3. #2

    Join Date
    May 2010
    Posts
    5,201
    Location
    Illinois
    Mower
    kioti/rhino finish mower

    Re: Toro GTS150 Commercial - very interesting shaped blade - normal?

    I believe if it was bent, one end would be lower than the other. If it is a uniform curve then it is probably normal. Most of the cutting of the blade is done at the tip.
    ILLINOIS ENGINE, BEECHER CITY, IL
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  4. #3

    Join Date
    Aug 2016
    Posts
    11
    Location
    Netherlands
    Mower
    Toro

    Re: Toro GTS150 Commercial - very interesting shaped blade - normal?

    Hi ILEngine :-).

    It is very evenly curved, that it is why I have a hard time believing the curve occurred after abusing it. Do you know if my mower is equipped with a curved blade? From Toro partsviewer or any picture I googled I can't really figure out if the blade is straight or curved?

    toro_blad_2.jpg

    Understood about the blade tip doing the mowing. But when I read through the Toro "Quality of Cut" manual i is very specific on the shape of the blade being straight to get a good cut.

  5. #4

    Join Date
    Aug 2015
    Posts
    913
    Location
    Kansas
    Mower
    Toro/Cub Cadet/Kubota

    Re: Toro GTS150 Commercial - very interesting shaped blade - normal?

    I'm pretty sure it's supposed to be curved. Mine looks to be. But it also has two shorter blades, also attached to the crankshaft.

    Ideally, the outer portion of the blade cuts the grass. If you figure the engine is turning 3000 rpm and the mower is advancing 3 mph, that means the mower is only advancing half an inch before another blade tip comes around.

  6. #5

    Join Date
    Nov 2014
    Posts
    8,327
    Location
    Australia
    Mower
    Victa slashers & Push , Rover Rancher II's, Cox ( several ) & White LT120 + GT 200

    Re: Toro GTS150 Commercial - very interesting shaped blade - normal?

    Because walk behinds cut lower than ride ons the blade mounting has to be protected from coming in contact with the ground.
    If not you will leave a bolt line down the center of the cut.
    Also the mounting bolt will wear round so it could not be removed
    Most walk behinds either have a curved blade or a stepped blade,
    Put it back on the mower and check the blade height at each edge.
    If more that 1/4 of difference it is new blade time.
    You can in theory press it back into shape but the blade is usually boron steel which work hardens so it very difficult.

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