Need help with Hydraulics!!!

Discussion in 'Mechanic and Repair' started by St3alth, Sep 3, 2007.

  1. St3alth

    St3alth LawnSite Member
    Messages: 1

    Hey guys. I just put a new hydraulic filter on my Gravely promaster 100 series mower and now I need to know how to bleed the lines.

    I have about 14 yards to mow tomorrow so any help would be appreciated!
  2. ealbertson

    ealbertson LawnSite Senior Member
    Messages: 256

    The first thing if you didn't do it is to fill the new filter with hydraulic oil. Then start the mower and loosen the filter enough to let some oil seep out. Then tighten it for good. Lastly, Jack the wheels off the ground blocking it securely and so forth so it doesn't fall and let it run forever back and forth in reverse and forward. This is how I do it on my eXmarks. I guess it will work there as well. You may also check the user's manual for instructions on this.

    Take care, Ed
  3. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Gravely's will purge as Ed explained, (Just a little clearer) Set the throttle about 3/4's and move the sticks forward and reverse slowly 8/10 times then test ride.

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