1. Can’t make it to the GIE+EXPO 2017?
    LawnSite brings the trade show floor to your fingertips with our new GIE+EXPO 2017 Sneak Peek video series debuting now in the Lawn Mowing forum.

    Dismiss Notice

DUmp Valve position on SACG SWZ 48 inch

Discussion in 'Mechanic and Repair' started by diggerdave, Mar 24, 2006.

  1. diggerdave

    diggerdave LawnSite Member
    Messages: 4

    Hi All- Any one have experience with hydraulic dump valve levers on a SCAG 48 inch walk-behind mower???
    Heres the problem- Im getting ready for the new season and I need to adjust the tracking. Im using the manual and it is not clear. It shows a pic of the dump valve levers labeled “normal position” which shows the levers with the bolt that passes thru the adjusting nut in a vertical position.
    To operate it says the dump valve levers must be returned to the closed position.
    What is closed and how do I tell? Is closed when the adjusting nut is screwed all the way in ? What about the freewheel position? It must be the opposite?
    On this particular model (SWZ 48A) the tracking is actually adjusted with a seaparte cam mechanism that allows you to increase or decrease the hand lever travel – whichleads me to believe that the dump valves should be left wide open which to me means the nut is tightened all the way in???? Is this correct??
    I jacked the wheels in the air and can see a visable difference on wheel speed when I turn the dump valve nut. I really want to make sure that I have both dump valves set correctly. thanks dave
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Screw the dump valve nut clockwise to close and make adjustments from this position. When you want to push the unit by hand open the valve counter-clock wise 1/2 turn. Don't worry about what position the through bolt is pointing.
  3. diggerdave

    diggerdave LawnSite Member
    Messages: 4

    Restrorob- thanks-- your info is exactly what I was looking for!!! I figured the thru-bolts position was irrelevant. Thanks dave

Share This Page