the pressure relief system is basically a saftey valve in the system. they are set to open when hydraulic ressure exceeds a pre-determined maximum. it is a valve with a spring on it, and when the pressure reaches a certain point, the valve opens venting hydraulic fluid to the return. if it wasnt in the system, when you reach the end of the cylinder stroke, or tried to do something beyond the capability of the system, pump damage, blown hoses, ect can occur. will the cylinder hold a load or does it creep down? if it creeps, that is a good sign of a bad cylinder.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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