Posted by D Slater on September 16, 2013 at 10:54:52 from (184.14.177.70):
In Reply to: Re: Hydraulics.... posted by John M on September 16, 2013 at 10:40:20:
One advantage of the valve is lowering a heavy load on the 3 point. When hooked to a belley pump side port a heavy load will take a hard push on the rod to overcome the check valve. Hard to do sometimes without dropping all at once. Disadvantage of the extra valve is any internal leakage in the valve between spool and bore will let the 3 point leak down. Plus extra plumbing. If the liftall works as it should the check or poppet valve blocks leakage back to the reservoir. Still can have the lift cylinder leak of. Unless the extra valve is in bad shape leak down shouldn't be bad with it.
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