As others have said the original system is designed for a one way operation. Pull the pump rod all the way out and the ports are activated. Push it halfway and it locks the oil in the cylinder. Push it all the way in and the oil will flow back through the supply hose to the reservoir. If you are considering using it in such a way that the oil has to return to the reservoir other than through the supply hose, I have a recommendation. Running a return hose into the fill/vent pipe will make a big mess if not done properly. If a large amount of oil is returning (large cylinders) the vent will not be able to discharge enough air to allow the oil in through the same pipe. The result is hydraulic fluid running out the vent like a gusher. I have first hand experience of this result. I ended up having to make an expansion tank of sorts to let the hydraulic fluid flow into until enough air could escape to let it flow back into the reservoir. This was a rig at best although it worked. I would have preferred to run the return hose into a elbow screwed into the bottom drain plug of the reservoir. That way the vent can expel the air since it is not sharing the same pipe as the return. I didn't do this as my hoses had already been sized for running into the top of the reservoir. Just something to consider if you are going to make changes.
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Today's Featured Article - Talk of the Town: How to Remove a Broken Bolt - by Staff. Another neat discussion from the Tractor Talk Discussion Forum. The discussion started out with the following post: "I have an aluminum steering gear housing with a bolt broken off in it. The bolt is about a 3/8" x 1 1/2" bolt. I've already drilled the center of the bolt out with about 7/64" drill bit the entire length of the bolt. Only one end of the bolt is visible. I tried to use an easy out but it wasn't budging and I didn't want t
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