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L555 new holland flow problem
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<blockquote data-quote="skidsteer.ca" data-source="post: 9639" data-attributes="member: 307"><p>Sounds like the charge pump is having trouble maintaining pressure in the hydrostat system.</p><p>When you drop the boom gravity turns your boom cylinders into temporary pumps and raises the pressure is my guess. You need to add a guage to the charge pressure system (look for where the sender is tied in for your light) Then its a matter of figuring if the pump is low on flow or if the oil is escaping somewhere it should'nt.</p><p>Does it work ok when pushing into a pile of gravel or does the extra power requied to move the machine into the pile make it act up then too?</p><p>If its only on a hill, could it be the the pickup for the charge pump is sucking air?</p><p>Just a few thoughts</p><p>Ken</p></blockquote><p></p>
[QUOTE="skidsteer.ca, post: 9639, member: 307"] Sounds like the charge pump is having trouble maintaining pressure in the hydrostat system. When you drop the boom gravity turns your boom cylinders into temporary pumps and raises the pressure is my guess. You need to add a guage to the charge pressure system (look for where the sender is tied in for your light) Then its a matter of figuring if the pump is low on flow or if the oil is escaping somewhere it should'nt. Does it work ok when pushing into a pile of gravel or does the extra power requied to move the machine into the pile make it act up then too? If its only on a hill, could it be the the pickup for the charge pump is sucking air? Just a few thoughts Ken [/QUOTE]
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L555 new holland flow problem
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