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Message: <blockquote data-quote="OldMachinist" data-source="post: 12944" data-attributes="member: 437"><p>I think what he's talking about is adjusting the relief valve to increase the pressure. I wouldn't recomend adjusting it beyond the factory recomended setting. Adjusting it to a higher pressure may increase lifting capacity but you could blow out seals and or damage the pump. You should check the pressure after changing system oil or any major component service or if you believe your machine is not performing up to specification.</p></blockquote><p></p>