A leaking packing should not let the bucket drop clear to the ground, if the control valve ports are shut off the oil will transfer from the piston side to the rod side through the damaged packing but cannot get back to reservoir, creating a situation where the pressure will be equal on both sides of the cylinder in effect making the cylinders simple displacement cylinders. If gages were installed in both sides of the cylinders equal pressure would be present in this situation. I have worked on hydraulics (Case backhoes) and have seen this many times in my 46 yrs, Just a few weeks ago on a 60XT skid steer, it would raise normally then seep down 3-4 inches till the pressure equalized across the cyls then stop, sometimes its just not as simple as it seems. mEl
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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