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Relief Valve Adjustment

Discussion in 'Boss Plows Discussion' started by tenyearsgone, Feb 14, 2010.

  1. tenyearsgone

    tenyearsgone Junior Member
    from PA
    Messages: 3

    When my strait blade trips the angle pistons freeze (get stuck) and won't angle. In order to unfreeze the angle I have to push the blade against a hard object (tree, wall, telephone pole) until it "unsticks". Is there a way to adjust the Relief Valve or is it something else?
     
  2. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    It's not caused by the angle relief, it's caused by a damaged angle valve. After years and/or repeated hard impacts the valve stem becomes swollen resulting the in the internal valve spool sticking, creating a stuck angle condition. Replace the angle valve. The valve is expensive to purchase but it's a 10 minute easy fix to replace.
     
  3. tenyearsgone

    tenyearsgone Junior Member
    from PA
    Messages: 3

    B&B...Put the new valve in and it worked at first...then completely locked up after about 3 to 4 left to right cycles. Removed and reinstalled, seems to be working fine. Questions, how tight should the valve be in the body, how tight should the end nut be, and does the spacer between the soleniods have a direction??? Thanks
     
  4. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    You probably over tightened it the first time. They only need to be snug and any more than that and you distort the stem thus causing it to jam the internal spool, oftentimes requiring another new valve. But you probably got away with it if it continues to work now.

    Spacer orientation doesn't matter.