I have a new to me case 580 SE with a 4-390. Runs sweet, has a few leaks, looks a little tired, my first backhoe.
Purchased and put to work around the acreage immediately digging trenches and doing what a new backhoe owner would do.
Noticed the oil light came on at idle when hot a couple weeks ago. Figured it might just need an oil change. Put in 30W and a new filter. No change. Removed the pressure switch and verified it works and closes @ 8 PSI which surprised me it switches so low. Purchased a mechanical gage but have not yet installed it. I'm pretty sure it will confirm my suspicions.
I've read through piles of notes on this issue but most point to a missing plug after a rebuild.
My next attack will be to remove the pressure regulator from the cooler just below the filter and see what it looks like.
Anyone have any other suggestions?
Purchased and put to work around the acreage immediately digging trenches and doing what a new backhoe owner would do.
Noticed the oil light came on at idle when hot a couple weeks ago. Figured it might just need an oil change. Put in 30W and a new filter. No change. Removed the pressure switch and verified it works and closes @ 8 PSI which surprised me it switches so low. Purchased a mechanical gage but have not yet installed it. I'm pretty sure it will confirm my suspicions.
I've read through piles of notes on this issue but most point to a missing plug after a rebuild.
My next attack will be to remove the pressure regulator from the cooler just below the filter and see what it looks like.
Anyone have any other suggestions?
