Need some help with this one as its been doing this since last season and its no longer just an annoyance but rather a safety hazard. Lets say I leave a site and raise the plow. Well a few minutes later if I dont lift it again, it will be on the ground. Not a huge deal but if I'm doing 50 on the highway and get distracted and dont raise it and it catches an edge on manhole, well that could hurt.
I have had the spool valve out and inspected the seals and it seems as though some of the teflon backup rings are a little worn out. But to be honest I'm not even sure if that could be the source of the problem. I would think that the oil is just seeping past the seals causing the plow to slowly lower under its own weight. But is that possible? Im not 100% sure how these solenoid valves work. Is it possible that the magnets that control the valve arent seating properly or something? Or does this sound like its definitely the seals on the spool?
Angelo......whats your opinion? anyone else ever work on the internals of these?