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Re: Any ideas? Another hydraulics question
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Posted by mowr on December 06, 2006 at 09:53:49 from (67.96.2.144):
In Reply to: Any ideas? Another hydraulics question posted by Brian in NY on December 06, 2006 at 05:38:50:
There may be a restrictor-type check-valve or some other type valve (adjustable or not) in the circuit or in the hydraulic valve assembly. The object, of course, is to keep it from crashing down and damaging something or someone(!) when lowering. If this is partially clogged or needs adjusting, it can cause this problem. Once when I had this problem I finally found a book for it and it showed how to adjust the drop-speed. On that one it was just a matter of turning a bolt-head on the valve assembly. Your pressure line, when lifting IS the return line when lowering and it shouldn't make any difference in the speed whether you have one line or two. If by disconnecting the hydraulic fitting from the cylinder, it can drop suddenly, then you have a restrictor, restriction or valve in the circuit. A restrictor plate could even be located in the inlet of the cylinder. Hopefully it will be something easy and inexpensive.
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