grass left standing

Discussion in 'Lawn Mowing' started by bwhuntr40, May 7, 2011.

  1. bwhuntr40

    bwhuntr40 LawnSite Member
    Messages: 43

    I have noticed lately that my mower has been leaving a lot of grass standing in its path causing me to spend a lot of time mowing areas twice. I have a Husqvarna RZ5424 which is giving me the most trouble. The dandelions seem to be the biggest problem. I also have a Scag advantage 36WB that performs much better over these areas leaving virtually nothing standing. I have sharpened the blades on my RZ54 twice already this season and not at all on the Scag. Any suggestions?
  2. crocs27

    crocs27 LawnSite Member
    Messages: 60

    If you haven't already, make sure the underside of the deck is cleaned off. I've had countless things stuck in the mower and after i scrapped it off, it would cut much better
  3. weeze

    weeze LawnSite Fanatic
    Messages: 12,746

    those dandelions and some other weeds can be tough to cut...they tend to just bend over...make sure the blades are sharp and slow down..if you go too fast it will just go right over them and bend them over instead of cutting them
  4. Snyder's Lawn Inc

    Snyder's Lawn Inc LawnSite Platinum Member
    Messages: 4,530

    Check the pitch of the deck might be to flat
    Front of blade should be half inch lower then the back
    Check RPM of the motor
  5. topsites

    topsites LawnSite Fanatic
    Messages: 21,653

    You want sharp blades, I put sharp blades on mine every time fuel goes in the tank.

    Check and make sure every blade is on tight, and that none are upside down.
    Also I'd check the belt and its tension, a loose or worn belt can do it some, too.

    When cutting, make sure the blades are engaged and that the deck is down and out of the transport position.
    Ground speed while mowing needs to be well below transport speed.
    Last edited: May 8, 2011
  6. Merkava_4

    Merkava_4 LawnSite Bronze Member
    Messages: 1,443

    You want the blade sharp enough to catch and scrape your thumb nail - that's how you tell if a blade is sharp enough.
  7. ALC-GregH

    ALC-GregH LawnSite Fanatic
    from PA
    Messages: 7,051

    1/2in is a lot. It's going to depend on the length of the blade.
  8. Bumpmaster

    Bumpmaster LawnSite Fanatic
    Messages: 22,253

    This seems to happen a lot this time of year. Wet grass, over grown grass, to fast of ground speed are some common factor's that will cause grass to be left uncut. Also how old the mower is. Mower decks do get worn out and do not cut as well as old decks. :waving:

    STIHL GUY LawnSite Fanatic
    from CT
    Messages: 5,226

    exactly what i was gonna suggest. in the springtime when the grasss grows faster i get this problem too if i try to mow too fast
  10. weeze

    weeze LawnSite Fanatic
    Messages: 12,746

    yeah shoot for 1/4"...anywhere from 1/8"-1/2" is good though

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