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Message: <blockquote data-quote="Mkeeton1" data-source="post: 112114" data-attributes="member: 18975"><p>Took the tandem pumps off , coupler is in tact , key way in tact, gear pump look like it's new to be honest , no wear at all. The pump behind it is definitely ok because the bucket works fine . Took the popet relief valve for charge circuit out it seems ok . I'm not sure what's going on. Still getting zero psi from charge pump , if I put sender back in charge psi light comes on . Changed fluid and all filters. There is fluid to charge filter and it pours out if I take sending unit out. How is it getting there if the pump isn't working. Could the charge circuit relief valve be bad and letting fluid bypass and not build pressure?</p></blockquote><p></p>