Bumpy terrain - fixed deck better?

Discussion in 'Lawn Mowing' started by Lawn-Scapes, Jun 10, 2003.

  1. Lawn-Scapes

    Lawn-Scapes LawnSite Silver Member
    Messages: 2,810

    Most of the lawns I maintain are an extremely bumpy ride.. in fact I think I have permanent nerve damage in my neck from the jolts I've taken.. but that's another topic. What I want to know is.. would a fixed deck give a better cut than a floating deck? I think the floating deck on my lazer bounces around too much causing a lot of uncut spots.. Make sense? What 60" mowers have a fixed deck?
  2. BSDeality

    BSDeality LawnSite Silver Member
    Messages: 2,849

    I've been looking at a Gravely 260z.

    my dealer said it has 2 bolts that go through the front axle to lock it into a fixed position. he said some people were havin trouble with the deck scalping and missing on rough terrain. Not sure if thats what you need, but the gravely seems like an awesome machine, its got a hydraulic lifted deck too
  3. Envy Lawn Service

    Envy Lawn Service LawnSite Fanatic
    Messages: 11,087

    If you are bouncing a 60" deck around bad enough to get a bad cut, you need a governor to slow you down, not a fixed deck. I have some of the roughest properties you can imagine and I can't stand to ride hem fast enough to bounce my deck around and it's only a 48" deck.

    Are you sure you are getting a poor cut from bouncing or are these areas where it would be better if the deck was articulating? As in a place where on front wheel lofts off the ground from uneven terrain.

    If not, you may want to play around with air pressure a bit. With a fixed deck, the whole mower is just going to bounce.
  4. I think “floating decks” which are really hanging decks are more likely to scalp than fixed decks. Why? Because with a fixed deck, you have precise control over what the mowing deck is doing with the steering levers. Hanging Decks have a mind of their own when it comes to abrupt changes in terrain. As far as brands go, I think Scag has some fixed decks that large, but I know 61” Wright Standers have fixed decks.
  5. Lawn-Scapes

    Lawn-Scapes LawnSite Silver Member
    Messages: 2,810

    Envy... my question was not about how fast or slow I need to go to get a good cut. I wanted to know if a fixed deck would give a better cut over a floating deck at the same given speed on a bumpy lawn..
  6. Simone Lawn Service

    Simone Lawn Service LawnSite Member
    Messages: 158

    I have a 48" Great Dane Surfer with a fixed deck. My next mower will definitely have a floating deck, from what I can see they really leave a smoother cut, but I've never had one...I can tell you that some of my properties are pretty bumpy, I go at a reasonable rate of speed, use sharp blades, and I seem to see blades of grass sticking up here and there-maybe the grass is just "looking greener on the other side":confused: If I take a steep hill I WILL either scalp the turf or get hung up, or worse yet-stuck.
  7. A “floating deck” that follows the terrain would be nice. Whenever someone comes out with a true “floating deck” let me know. Everything I’ve seen on the market is a hanging deck. Which means it has a tendency to follow gravity, not the terrain.

    On a steep slope, you’re mower might be tilted 20-degrees, but the deck might be hanging at 25-degrees. Seems to me a hanging deck is going to produce a poorer cut than a fixed deck on a steep slope.
  8. mikesjumpingin

    mikesjumpingin LawnSite Member
    Messages: 101

    I'm new, but for what it's worth, my 48" Exmark metro hp (floating deck) was bouncing so bad it knocked off a hub cap, then I remebered reading about the "scalp roller height adjustment" in the manual.

    I lifted the rollers up a little, and that took care of it.

  9. NCSULandscaper

    NCSULandscaper Banned
    Messages: 1,557

    I have a 44" floating deck on my z master and i let my anti scalp wheels down a notch so they almost ride on the ground. So far i have never had a scalping problem on the roughest of lawns. When you get to a good bump the anti scalp wheels ride on the ground to keep the deck from scalping like they were made to do.
  10. Lawn-Scapes

    Lawn-Scapes LawnSite Silver Member
    Messages: 2,810

    Isn't amazing? I never asked about scalping nor do I have a problem with scalping... Does anyone read any more?

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