I am Demoing EXmark Lazer HP but makes funny noise

Discussion in 'Lawn Mowing' started by DLS1, Aug 3, 2002.

  1. DLS1

    DLS1 LawnSite Bronze Member
    Posts: 1,619

    I am demoing a 2000 Exmark Lazer HP from a dealer that has 1200 hours on it. Is 52 inch/23 Kaw motor. The acres I have mowed Friday night and today look like a carpet for a yard. Looks just like golf course mowing. One property takes me 5 hours to mow Saturdays with a Sears 44" rider but the Lazer cut it down to 3-1/2 hours and half the land was mowed up to last month with a big bushhog mower so I went 1/2 speed or less for that area.

    This may be typical for hydo's (I don't have hydro now) but whenever I move one of the wheel driving levers the mower squeaks pretty loud. My wife took it for a joy ride in the back of our 5 acres without the mower blades engaged and you can still hear it from the back of our property. Is this normal on a Lazer HP or a hydro in general? Is hydro or something else going out? How do you tell if hydro is starting to go out?
  2. General Grounds

    General Grounds LawnSite Senior Member
    Posts: 902

    :blob3: most of my lazer hydro "whine" a little bit but that sounds a little excesive, check hydro fluid.
  3. DLS1

    DLS1 LawnSite Bronze Member
    Posts: 1,619

    Thanks for the info. It actually is a whine?
  4. 65hoss

    65hoss LawnSite Fanatic
    Posts: 6,360

    I have the same mower. My hydros whine also. Its pretty loud, especially when the rpm's are down.
  5. SLS

    SLS LawnSite Bronze Member
    from Mars
    Posts: 1,540

    Being that text (this forum for instance) makes it extremely difficult to know how LOUD loud really is or determine the difference between a shriek, a wail, a moan, or a whine...

    ...may I suggest that a comparison demo may be in order?

    See if your dealer has another, or similar, machine and give them a whirl...side-by-side.

    My Lazer has a bit of a whining sound, but with my experence with hydro devices, I know that it is in the 'normal' range of things. Like 65hoss said, if the rpm's are low it gets very loud...the lower-the louder...due to lack of pressure. At high rpm's it is normal.

    Do a comparison demo and see if the whine is noticably louder on the 1200 hr machine.

    If it is loud 5 acres away I would be investigating this further before I bought it. My Lazer's engine masks the hydro's noise at much closer distances.

    Good luck ....and have fun doing the demos! :)
  6. It is normal to whine, but it should almost disapeir with the blades on and the engine running at full rpm's.

    If the engine rpm's are not at 3650 it will whine a bit more.

    May just need a going over, or could be a problem, have the dealer look it over.

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