LT. rear port has a separate ball check valve that pressure goes and returns through than the other 2. The delayed lift valve installed in the line between liftall and cylinder caused pressure in the system to raise to 425 to 475 LB. before left rear port recived pressure. Delay lift valve pressure was lower on old pumps. When it came to relieveing pressure the LT. rear port is last to get the ball check valve inside unit pushed open. If lever is moved forward all at once, they all release pressure at the same time. If LT. rear port is pluged and not in use you may not feel the difference when pushing control rod forward. 70 years ago it was good engineering and lots still working now.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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