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Bleeding air out of hydro system *dixie chopper*

Discussion in 'Lawn Mowing' started by K&F lawn, Jun 20, 2004.

  1. K&F lawn

    K&F lawn LawnSite Member
    Posts: 4

    left hydro just went out on our dixie chopper, so we replaced it with a new unit and cleaned out the whole hydraulic system. Filled the system back up and still wont go anywhere. Does anyone know anything about bleeding the hydraulic system if air gets in?

    thanks in advance
  2. Xcellent Lawn

    Xcellent Lawn LawnSite Member
    Posts: 38

    I was told to jack up back wheels and slowly move handles back and forth until the big airbubbles are gone. It takes like 17 seconds to burn a pump. I changed mine beggining of this yr with not problems. hope that helped
  3. barringtonbrothers

    barringtonbrothers LawnSite Senior Member
    Posts: 579

    I know on my hydros you have to remember to throw that little switch on them so they will engage. Its silver and on the unit its self. I was using my Z when I first got it, and some how put a hole in the hydro filter. I released the switch so the wheels would roll in neutral, and when I put the new filter on and jacked it up to let the wheels run free to bleed the air out, I forgot to flip the little switches and got nothing. Man I was flipping out for a sec, I thought jesus I just ruined my hydros on a brand new mower. But then I was calling my mechanic buddy, when I realized my mistake. Bout had a heart attack there.
  4. K&F lawn

    K&F lawn LawnSite Member
    Posts: 4

    thanks guys, i will give that a try. Anymore suggestions?
  5. Likestomow

    Likestomow LawnSite Senior Member
    Posts: 997

    Like Ecel said, jack up the rear wheels, but run the engine at idle. Let the wheel motors spin forward for a while, then backward for a while. When you hear the chattering noise go away, you will be ready to mow. This could take 10-20 minutes.
  6. tiedeman

    tiedeman LawnSite Fanatic
    from earth
    Posts: 8,745

    yup, just let the engine run for a while, it will go away
  7. K&F lawn

    K&F lawn LawnSite Member
    Posts: 4

    tried this and still no luck. Could we possibly have a leak in one of the lines and air could still be getting in? I can see air bubbles going into the resevoir but it still isnt getting any better.

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