Gear vs. Hydro (dual & single)

Discussion in 'Mechanic and Repair' started by JimmyStew, Mar 13, 2008.

  1. JimmyStew

    JimmyStew LawnSite Senior Member
    Posts: 367

    Was hoping someone could explain the functional differences between a gear drive, single hyro and dual hydro drive on walk behind mowers. How does each effect speed control and turning. I've used a gear drive model and have a good understanding of how they operate but I'm unsure of how the two hydro models function.
  2. JRS Landscaping

    JRS Landscaping LawnSite Senior Member
    Posts: 817

    dual hydro has 1 pump for each wheel. single hydro has one pump for both wheels. dual hydro is easier to turn as the single you have to manually turn it. dual you just pull a lever and it turns. you can also go from foward to reverse without changing gears just squeeze the levers. they have powered reverse unlike the gear drives
  3. JimmyStew

    JimmyStew LawnSite Senior Member
    Posts: 367

    Not to sound like a 4 year old but, Why?:confused:

    What is the point of the single hydro if it doesn't help with stearing? Do the hydros still use belts for the braking action?
  4. jkason

    jkason LawnSite Senior Member
    Posts: 548

    It's cheaper to use a sinle hydro, rather than two. Like $500.00 cheaper. Most new units (that I've seen) have dual hydros, nowadays.

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