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question about my mower.

Discussion in 'Lawn Mowing' started by clncut, May 18, 2005.

  1. clncut

    clncut LawnSite Member
    Posts: 94

    I have a 2002 exmark lazer hp. I went out and bought another exmark same size and hp. Ive noticed on my older model the bars are very touchy. I barely pull back to come to neutral and the tires will lock up to a skid and shake the mower left and right. On the newer model I do not have this problem.

    I do all the maintenance on my mowers just like the manuel states. The handles do not feel like they are gummed up. I did adjust the knob so the mower would track straight but it was doing this before I did the adjustment.

    Anyone else have this problem or any ideas on how to fix this. Its hard for the guy Im training to make straight lines if the mowers jerking all over when he is trying to stop or slow down. :realmad:

    Thanks in advance.
  2. Grass Masters

    Grass Masters LawnSite Member
    from NC
    Posts: 85

    Jerking?? When ever any of my mowers start that it is time to change all hydro fluids and filters

    and then it is fixed

    Also what does the tires look like (condition) (air) Etc
  3. clncut

    clncut LawnSite Member
    Posts: 94

    Tire tread is still good, just changed the air filter the start of this season. Hydro fluid.......I will have to change that and see what happens. Thanks. Anyone else?
  4. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 13,200

    To adjust hydro on Scag and Snapper I jack the unit up and put it on jack stands. Then start the unit and check to be sure that in neutral the tires are not rotating. YOur problem sounds like the tires will be rotating backward hence when you come into neutral the unit wants to jump back a little. I am sure there is a fine turn adjustment for the problem. Just my 2 cents.
  5. CincyWolf

    CincyWolf LawnSite Member
    Posts: 78

    clncut - check the damping cylinders that return your bars to neutral. If those get worn out everything will be touchy. They are gas charged cylinders so they will leak down over time similar to the lift supports on the hoods or liftgates of cars, vans or trucks. You might need to change your Mobil 1 hydro oil and filter but the above is worth a check.
  6. mowit12000

    mowit12000 LawnSite Member
    Posts: 34

    i agree with cincywolf, had the same problem on a toro and an exmark that had about 1300 something and 1700 something hours on them, replace both cylinders and the problem should be gone
  7. clncut

    clncut LawnSite Member
    Posts: 94

    Thanks for all the replies, I will probably go ahead and change the hydro oil. Checked the oil and it did seem slightly low. The mower only has 400 hrs. I will also get the wheels of the ground to make sure nothing turns at neutral.

    Thanks again.
  8. Grass Masters

    Grass Masters LawnSite Member
    from NC
    Posts: 85


    Most mowers call for the Hydron system t be changed at around 500 hours

    If you do alot of hilly areas then that number could be cut by a third which would mean time to do it now
  9. South Florida Lawns

    South Florida Lawns LawnSite Platinum Member
    from usa
    Posts: 4,785

    just the filter and top it off with 15w-50 mobile 1
  10. Grass Masters

    Grass Masters LawnSite Member
    from NC
    Posts: 85

    400 hours he needs to DRAIN the Fluid and put fresh back in it

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