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Skid steer relief valve
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<blockquote data-quote="Earthwerks Unlimited" data-source="post: 26364" data-attributes="member: 1300"><p>It's not uncommon for a charge pump to go.</p><p>The charge pump ONLY is used for the hydrostatic drive pumps--it keeps pressure behind the individual pump pistons to keep them from rattling against the swash plate.</p><p>The loader, and bucket, and hyd. aux. use ONLY the gear pump. They all use the same hydraulic sump and maybe filters. </p><p>Example of the separate systems is you could literally have no gear pump and still be able to move the machine. Or have a blown hydrostatic pump or motor and still be able to move the machine. However it depends on where the break or failure occurs; I had a fitting blow apart on one drive motor and everything shut down.</p></blockquote><p></p>
[QUOTE="Earthwerks Unlimited, post: 26364, member: 1300"] It's not uncommon for a charge pump to go. The charge pump ONLY is used for the hydrostatic drive pumps--it keeps pressure behind the individual pump pistons to keep them from rattling against the swash plate. The loader, and bucket, and hyd. aux. use ONLY the gear pump. They all use the same hydraulic sump and maybe filters. Example of the separate systems is you could literally have no gear pump and still be able to move the machine. Or have a blown hydrostatic pump or motor and still be able to move the machine. However it depends on where the break or failure occurs; I had a fitting blow apart on one drive motor and everything shut down. [/QUOTE]
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