Yard Man, hydrastat will not move.

Discussion in 'Mechanic and Repair' started by rockytopp, Jun 25, 2005.

  1. rockytopp

    rockytopp LawnSite Member
    Messages: 120

    I have a problem with the hydrastat. it turns with the engine running but does not engage. This has sat for two or three years and not moved, is it possible that the balls are froze or dirt settled into the valves and locking it up?? Could a person just change oil,( what kind and wgt.?) and perhaps run it for awhile on blocks and get it to operate? Rather has me bumfuzzeld. Thanks for any and all help.
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    First thing to do is check the dump valve and make sure its closed,Then check the brake caliper and make sure it doesn't have the brake locked up.
    This is the most common things over looked.

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