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Message: <blockquote data-quote="Earthwerks Unlimited" data-source="post: 10545" data-attributes="member: 1300"><p>The manual system is very similar to the power one in that they both are over-center as was. The cylinder likely has residual pressure behind it coming from the valve block but is not actively under pressure. As far as the bad performance I'd look for a broken over-center spring at each locking pin, poor adjustment of the pins themselves, or rust/dirt at the bottom of each pin hole---this may be keeping the pins from going all the way down, but jjst enough to go over-center. Also, check the roll pins in the locking pins that ride up and doiwn in a slot on the front of the locking plate (visible without the bucket and seen from the front) If they are bent or rusted on the slots or are filled with debris that will wreak havoc. Also look inside the pin/cam/spring cavities inside the locking plate for debris such as little stons, roots, mulch, leaves, dirt, etc. which will prevent locking pin movement. A good powerwashing to blow out that stuff will do it good.</p></blockquote><p></p>