Posted by JD Seller on June 26, 2016 at 22:05:23 from (208.126.198.123):
In Reply to: 4430 hyd posted by stoneridge on June 26, 2016 at 20:49:16:
You have a Selective Control Valve ( SCV) leaking internally. The external linkage would more than likely NOT be the trouble. There are four internal valves/spools that all have to seal for the SCVs to hold pressure when in neutral. Your baler end gate creeping back open is a sure symptom of the high pressure valve leaking across in the SVC valve.
I would recommend taking the SCV valve to some one that has experience on these valve to be overhauled. I can tell just by the way you asking about the valves you are not familiar with these Valves enough to over haul them yourself. I am NOT trying to run you down but these valves can be tricky to get right even for an experienced person. Removing the entire valve is simple. Just unhook the linkage form the control lever and remove the four mounting bolts that hold the complete valve to the rock shaft housing. You should replace the orings there when you reinstall the rebuilt valve.
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