Posted by greygoat on March 20, 2014 at 06:05:29 from (184.158.94.69):
In Reply to: Leaking hydro oil posted by Ben R on March 19, 2014 at 19:15:01:
Many hydraulic pumps have a "Pinhole" drilled from the front bearing area, to the inlet port of the pump. Some lube gets into the bearing area, to oil it,and/ or, when shaft gets worn, oil that lubes the shaft gets drawn back through the suction port, through the pinhole. When the pump or bearings are worn out, more oil goes through than the suction port can handle, and it pops the outer seal. Many pumps are "Non reversible". On "Reversible" pumps, when disassembling, and reassembling, in reverse rotation, it is vital to note the position of the "Drain Port" !
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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