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Machinery
JD 2850 Loss of Hydraulics
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<blockquote data-quote="britcivic" data-source="post: 7014647" data-attributes="member: 70794"><p>So the tractor has been doing a bit of work for me now, with no repeat of the complete loss of hydraulics thank god...</p><p></p><p>The one repeatable issue I have is that once warm the lift arms will slowly drop when it's idling, and the oil pressure light will come on (Hi Lo still works though). If I give a bit of revs they'll pick back up and when it comes back down to idle they stay up ok. </p><p></p><p>The lift arms will drop straight away when I stop the engine every time.</p><p></p><p>Is this just the main seals in the rockshaft, or do I suspect the pump too? (destroke valve from what I've been reading?)</p><p></p><p>The pressure is 180 bar on the gauge on my crane spool block when I start from cold, and the hydraulics seem plenty strong enough.</p><p></p><p>BTW The winch is working fine on the spools....</p></blockquote><p></p>
[QUOTE="britcivic, post: 7014647, member: 70794"] So the tractor has been doing a bit of work for me now, with no repeat of the complete loss of hydraulics thank god... The one repeatable issue I have is that once warm the lift arms will slowly drop when it's idling, and the oil pressure light will come on (Hi Lo still works though). If I give a bit of revs they'll pick back up and when it comes back down to idle they stay up ok. The lift arms will drop straight away when I stop the engine every time. Is this just the main seals in the rockshaft, or do I suspect the pump too? (destroke valve from what I've been reading?) The pressure is 180 bar on the gauge on my crane spool block when I start from cold, and the hydraulics seem plenty strong enough. BTW The winch is working fine on the spools.... [/QUOTE]
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JD 2850 Loss of Hydraulics
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