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double blades

Discussion in 'Lawn Mowing' started by LawnInOrder, May 3, 2006.

  1. LawnInOrder

    LawnInOrder LawnSite Senior Member
    Posts: 398

    ok, so i have a lawn boy gold series mower. I was wondering what the advantage to running two blades is? Is it better for mulching and leave cleanup. I bag all my lawns. Is it safe to run 2 blades? Do you need a longer bolt holding the blades on when running double blades? Thanks LawnInOrder
  2. LawnInOrder

    LawnInOrder LawnSite Senior Member
    Posts: 398

    comme on guys, i know you know the answers
  3. Splicer

    Splicer LawnSite Senior Member
    Posts: 992

    Absolutely NO reason to double blade a Lawn Boy. Bad idea...
  4. milsaps118

    milsaps118 LawnSite Senior Member
    Posts: 559

    I agree with Splicer. No need to double up especially if you just bag with it. I double up just to get more distance and spread during discharge, your bottom blades do 99% of the initial cut. If you do it, keep in mind that this will effect your mowing height.
  5. valley boy

    valley boy LawnSite Member
    Posts: 85

    I use doubles on my toro recycler , reduces emptying the bag more often account smaller pieces packing better in the bag.
  6. upidstay

    upidstay LawnSite Bronze Member
    from CT
    Posts: 1,341

    I know some guys who have done it on a variety of mowers. Really chops stuff up fine. Makes it easier for bagging or mulching.
  7. ACEMowing

    ACEMowing LawnSite Member
    Posts: 93

    Our Honda mowers all have factory double blades stacked on top of each other and they are offset about 2" at the tips. I wish I could figure out a way to stack and offset them on our riders... they do a great job. Our Walker 42" mulching deck has stacked blades in a big X pattern and they do good but not as good as the offset Honda's (or the snapper ninja blade which is a single blade with offset cutting edges). I have the pics of the blade setups on our site at: http://acemowing.com/mulching.htm
    They all make a huge difference when mulching... the Honda does seem to dice it finer when bagging as well. You reall notice it when bagging leaves with the Honda HRX mower... it hold 3 times the leaves compared to the single blade baggers.
  8. FrankenScagMachines

    FrankenScagMachines LawnSite Platinum Member
    from IN
    Posts: 4,739

    I used to have a Toro 21" mower (old 3 speed bagger, great mower) that I fitted a Lawn Boy 2 cycle engine onto it... great machine, best of both worlds! The Lawn Boy had the old style large spindle shaft with just a large nut to hold the blade onto it, with a little adapter plate that wedged onto the spindle. I took a Gator and Hi-Lift blade from a 60" rider and welded them together and to the adapter haha... Just one of those blades is a lot of weight for a small Lawn Boy engine, but to run two of them, well it takes a lot of torque! The motor would pull it, and the heavy mower, but it slowed the motor down too much... Where am I going with this? I don't know LOL.... I guess a small 5hp motor may not have the guts to pull doubles.. other than that i've never seen a need to run doubles on a 21".... but then I've never seen a need to use a 21" LOL... that was just a toy somethin to fool around with...
  9. LawnInOrder

    LawnInOrder LawnSite Senior Member
    Posts: 398

    How many hp is your honda. I think my is a 5 hp honda. Does it damage your eninge running double blades and do i need to use a longer bolt to hold the blades on? LawnInOrder

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