JD Z720a decent machine?

Discussion in 'Lawn Mowing Equipment' started by brazosdog02, Apr 4, 2013.

  1. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Posts: 13,385

    I found that running 15 psi in the front tires (which is also what JD recommends) and 10 or 12 psi (IIRC, they recommend 12, but I tried both) in the rears makes the ride very nice. Don't wait for the blades to need replacing. The G6's really make that mower come alive. Much better than the stock blades. Check the pitch of you deck on a nice flat surface too. The dealerships rarely get it set correctly. There should be at least 1/4" of pitch to the blades when they are lined up front to rear, with the rear being higher. You can buy a handy gauge at a Deere deaalership for bout $8-10 that makes checking the blade height and pitch easy.
     
  2. brazosdog02

    brazosdog02 LawnSite Member
    Posts: 25

    Do you have a model number for the oregon blades for this model?
     
  3. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Posts: 13,385

    Last edited: Apr 9, 2013
  4. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Posts: 13,385

    The one on the left is what yours came with- the std lift, then the middle one is the OEM high lift, and on the right is the G6.
     
  5. brazosdog02

    brazosdog02 LawnSite Member
    Posts: 25

    Thanks! Those are some mean looking blades!
     
  6. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Posts: 13,385

    They aren't designed to be used with any type of mulch kit, just side discharge or bagging, but they shred stuff up pretty well. Grass clippings are about 1/3 the size when they come out. They also have carbide infused into the bottom side of the cutting edge so that they stay sharper longer. You can still file them easily enough with a good old hand file though.
     

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