Hydro Pump Question

Discussion in 'Lawn Mowing' started by jaybow, Mar 16, 2008.

  1. jaybow

    jaybow LawnSite Bronze Member
    from Mi
    Posts: 1,089

    I am considering buying an Exmark 50" Triton deck 23 horse Kawi Lazer HP or a 52" Advantage deck 28 horse Kawi Lazer AS series mower and I noticed the deck difference and the hydro pump difference.How much difference does it make to have a 10cc hydro pumps rather than 12cc hydro pumps?And does anyone know the price difference on these machines?Thanks
    I was quoted a price for the 50" Lazer HP Triton for $6999 how much more for the 52 Advantage series?
     
  2. JimQ

    JimQ LawnSite Bronze Member
    Posts: 1,139

    The noticeable difference is negligible.

    Basically, the 12cc pumps have a 20% increase in output form the 10cc pumps.

    As far as ground speed goes, (assuming nothing else is changed) take the ground speed of the 10cc machine and add 20%.

    If the 10cc machine goes 8mph, the 12cc machine should go 9.6mph.

    That being said, the 10cc machine will have more torque than the 12cc machine.

    In the same sytem, the 12cc pumps will run warmer because of slightly higher system pressures.

    It's tough to notice the difference. Don't worry about it.

    Q
     
  3. T Total Lawncare

    T Total Lawncare LawnSite Bronze Member
    Male, from The deep south
    Posts: 1,114

    Why does everyone think that the bigger the pumps are the stronger the machine is?
     
  4. Richard Martin

    Richard Martin LawnSite Fanatic
    Posts: 14,700

    Because they don't understand how hydro systems work.
     

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