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Toro Groundsmaster 4100

Discussion in 'Mechanic and Repair' started by crawford_d, Jun 30, 2012.

  1. crawford_d

    crawford_d LawnSite Member
    Messages: 152

    I have a Toro Groundsmaster 4100 that will not flex the left side deck downward any more. It flexes up while mowing but usually will not go back down without hitting the lever each time. Seems like a check valve or something. Could someone give me an idea what and where to look? Thanks!
     
  2. ricky86

    ricky86 LawnSite Silver Member
    Messages: 2,075

    I'll tell you exactly where to look. The Toro website for a repair manual. That's a rather complex system to be trying to trouble shoot without a flow chart.
     
  3. crawford_d

    crawford_d LawnSite Member
    Messages: 152

    I have a manual and I see the flow chart. I am not understanding what would keep the wing from moving down when it doesn't seem to have a problem with going up.
     
  4. ricky86

    ricky86 LawnSite Silver Member
    Messages: 2,075

    I know little about the unit, but, is it a dual acting lift cylinder or a single?
    If it's a single, could something be binding?
     
  5. crawford_d

    crawford_d LawnSite Member
    Messages: 152

    It's dual acting.
    Troubleshooting says to look at pilot valve in lift/lower valve. I don't know what that might look like. Is it part of the spool?
     
  6. ricky86

    ricky86 LawnSite Silver Member
    Messages: 2,075

    Sorry, I don't know enough about the system to comment any more than I have.
    Call Toro, they must have a dept that caters to their commerical line.
     
  7. dieselss

    dieselss LawnSite Silver Member
    Messages: 2,028

    It's like the float in a plow. Part of the valve body. If your not sure, take it in
    Posted via Mobile Device
     
  8. crawford_d

    crawford_d LawnSite Member
    Messages: 152

    the problem turned out that the cylinder rod was bent just enough to cause it to not move freely. I couldn't' see it until I took it apart and by the way that was listed in the troubleshooting guide as well. Thanks for all the help.
     

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