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Sac & Story county IA | There are 65 psi cracking pressure check valves. One of those would let oil out if the return line came out of tractor. How a person would do it is a question. The oil should return to the tractor sump. The operator should have some kind of signal as to if the return was compromised. Murphy oil level switch? A loop of clear tubing outside of back window? Those ideas sound too Rube Goldberg. I have a manlift body that has a valve that holds oil up to basket so oil doesn't run back to reservoir when shut off. That return pressure is about 400 psi. Low pressure valves that open are around. | |
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Motor return line pressure relief valve
