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| When our massey did that it was a pressure regulator type adjustment under a cap on a valve. Put gauges on it and set to spec but wasn't long till back the same so we put washers (for spacers) the right thickness so the cap kept it from backing out. Not sure whether it was a master valve that would have effected all hydraulic function or not. Might be worth a look if it would by chance have similar valves. We were thinking we needed a new pump!! | |
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