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<blockquote data-quote="Shanmar" data-source="post: 131591" data-attributes="member: 21969"><p>"Charge pressure actually, 300 recommended I'm stilling at 250 and it goes to 0 on each drive movement"</p><p>This statement is an issue. If you read the section on charge pump pressure testing it tells you what you should see and the possible causes. It would be worse with warm oil because the warmer, thinner oil leaks by more in the pumps and motors thus requiring more charge flow to keep the system charged. </p><p>At this point, my guesses would be (in cost increasing order: </p><p>1 - charge pressure relief valve</p><p>2 - charge pump wear/damage</p><p>3 - overall system wear (or some component) leading to excessive internal leakages that the charge pump can't keep up with.</p><p></p><p>What is the hydraulic oil? And is it in good condition?</p><p></p><p>No need to send me anything. I'm just sharing what's relatively easy at my fingertips.</p></blockquote><p></p>
[QUOTE="Shanmar, post: 131591, member: 21969"] "Charge pressure actually, 300 recommended I'm stilling at 250 and it goes to 0 on each drive movement" This statement is an issue. If you read the section on charge pump pressure testing it tells you what you should see and the possible causes. It would be worse with warm oil because the warmer, thinner oil leaks by more in the pumps and motors thus requiring more charge flow to keep the system charged. At this point, my guesses would be (in cost increasing order: 1 - charge pressure relief valve 2 - charge pump wear/damage 3 - overall system wear (or some component) leading to excessive internal leakages that the charge pump can't keep up with. What is the hydraulic oil? And is it in good condition? No need to send me anything. I'm just sharing what's relatively easy at my fingertips. [/QUOTE]
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