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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
753 pump *hums*
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<blockquote data-quote="Tazza" data-source="post: 18404" data-attributes="member: 82"><p>Hopefully something is wrong in the hose or stuck in the elbow. The drive pumps make no noise and work flawlessly so i hope no seal particles are stuck. The seals went to like powder so i believe they would be too large to get stuck in the slots in the wear plates (or i hope not).</p><p>The cold weather by-pass from what i was told is there for when the oil is too thick and it allows it to by-pass the oil cooler/filter and go straight back to the tank. Its set to 400 PSI which is double the charge pressure relief. I did replace the valve body, poppet and spring, i thought just in case! This valve does nothing to regulate charge pressure, the charge relief is built into the pump.</p><p>The thing is, the machine still operates really well, but has that rotten noise! There is what i thought was a problem with the aux hydraulics that they sort of stick, you release the button and it doesn't stop instantly but was told they use charge pressure to release so i think they could be related.</p><p>I will try and get the hose and elbow off tonight and see if i can find anything. I really hope it was a simple as a damaged hose.</p><p>Thanks for the input!</p></blockquote><p></p>
[QUOTE="Tazza, post: 18404, member: 82"] Hopefully something is wrong in the hose or stuck in the elbow. The drive pumps make no noise and work flawlessly so i hope no seal particles are stuck. The seals went to like powder so i believe they would be too large to get stuck in the slots in the wear plates (or i hope not). The cold weather by-pass from what i was told is there for when the oil is too thick and it allows it to by-pass the oil cooler/filter and go straight back to the tank. Its set to 400 PSI which is double the charge pressure relief. I did replace the valve body, poppet and spring, i thought just in case! This valve does nothing to regulate charge pressure, the charge relief is built into the pump. The thing is, the machine still operates really well, but has that rotten noise! There is what i thought was a problem with the aux hydraulics that they sort of stick, you release the button and it doesn't stop instantly but was told they use charge pressure to release so i think they could be related. I will try and get the hose and elbow off tonight and see if i can find anything. I really hope it was a simple as a damaged hose. Thanks for the input! [/QUOTE]
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753 pump *hums*
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