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Hydra-Mac Hydrostatic Charge Oil Pressure Questions
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<blockquote data-quote="Condor" data-source="post: 33289" data-attributes="member: 1887"><p>I have heard of getting this surface ground and lapped but had no idea that it had to be hardened again. Great information. I will get these pumps apart and contact Levi. To clarify the case drain vs the charge line in my case, the case drain is located on the main pump housing, it captures the internal leakage and returns it back to the tank. In my case since the front and rear pumps are stacked together, only the rear pump has a fitting and line for case drain purposes, but it drains the internal leakage of both pumps (the front pump internal leakage flows thru into the rear pump housing) The charge pressure on this machine is plumbed into the valve section of each pump. Thanks again for the help, Joe</p></blockquote><p></p>
[QUOTE="Condor, post: 33289, member: 1887"] I have heard of getting this surface ground and lapped but had no idea that it had to be hardened again. Great information. I will get these pumps apart and contact Levi. To clarify the case drain vs the charge line in my case, the case drain is located on the main pump housing, it captures the internal leakage and returns it back to the tank. In my case since the front and rear pumps are stacked together, only the rear pump has a fitting and line for case drain purposes, but it drains the internal leakage of both pumps (the front pump internal leakage flows thru into the rear pump housing) The charge pressure on this machine is plumbed into the valve section of each pump. Thanks again for the help, Joe [/QUOTE]
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Hydra-Mac Hydrostatic Charge Oil Pressure Questions
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