Toro Z master-how to bleed hydro pumps?

Discussion in 'Lawn Mowing' started by lawn masters2006, Jun 4, 2010.

  1. lawn masters2006

    lawn masters2006 LawnSite Member
    Messages: 49

    I have a 2006 toro z master and i just replaced a hydro pump OUCHHHH

    But i cant figure out how to bleed air out of the system after the pump replacement.
  2. M&S_Lawncare

    M&S_Lawncare LawnSite Member
    Messages: 111

    I think you have to take the lid off the hydro oil container and run the pump the air will flow thru the hose and empty in the hydro oil tank. That's what I did for a buddy that had a new cylinder put on a plow so I would assume same concept.
  3. TLS

    TLS LawnSite Fanatic
    Messages: 7,943

    Self bleeding.

    Jack up.

    Slowly work sticks backwards and forwards.
  4. lawnmasters2010

    lawnmasters2010 LawnSite Member
    Messages: 3

    Ok...really mad now...

    I jacked up the mower an bleed it out ...i THINK

    The left hydro outer seal went bad,chewed up a bearing..i had it rebuild at a hydro pump shop..

    NOW the left side is MUCH slower an JERKY an makes weird sounds.
    So i took off the tire on that side and i can almost stop the hub from spinning.
    Does it air in it? Is the wheel hydro thing bad?

  5. lawnmasters2010

    lawnmasters2010 LawnSite Member
    Messages: 3

  6. Richard Martin

    Richard Martin LawnSite Fanatic
    Messages: 14,699

    Usually when a pump gets garbage in it so does the wheel motor. I wholeheartedly recommend you buy a brand new pump and wheel motor before you contaminate the other side and destroy the entire hydro system.

    Before you install the new parts I recommend that you flush all of the old hydro oil out of the tank, pumps, hoses and wheel motors and replace the hydro filter.
  7. Richard Martin

    Richard Martin LawnSite Fanatic
    Messages: 14,699

    And yes, there is a bleed procedure.
  8. yardatwork

    yardatwork LawnSite Senior Member
    Messages: 651

    Hahaha...Toro pumps and wheel motors...ARE GARBAGE! I have two Toro z400s and in the past two years the one is on its third, left wheel motor and second right wheel motor. The other tractor is on its second left wheel motor and the right pump is losing all power. And at at cost of $500 for wheel motor and around $600 for a new pump...TORO should make a better product. Rebuild to me is pointless due to price of rebuild and the amount of variables when rebuilding...almost just as feasible to buy new. However, my mechanic to me a quick/easiest way to bleed was to leave the hydro oil cap off and move the handles for a bit...easiest way isn't always the solution though!

Share This Page