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    Sullair 375 Compressor with John Deere Diesel

    well I took your advice about the ground and I realized I didn't't even know where the control panel harness ground was and went looking for it. it was sandwiched between a harness clamp and the block and both were painted. so I moved it to where the frame and battery are bonded to the block...
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    Sullair 375 Compressor with John Deere Diesel

    Dang that all doesn't sound good.. I guess I'm hoping its not a bad pump but if its normal for the oil pressure to go from 60 to 40 after warm up then I might be ok. I'm still waiting on an oil temp gauge so I can check the compressor air end oil temp. it hasn't arrived yet but when it does...
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    Sullair 375 Compressor with John Deere Diesel

    thank you for that I think will try running it again this time with the oil pressure switch wired to the harness and see at what pressure it is shutting down, and maybe after that run it grounded so it stays running and see if it continues to go down below forty after running it awhile at least...
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    Sullair 375 Compressor with John Deere Diesel

    yes below the engine oil filter, right next to and below the lower radiator hose. tee'd off with the engine oil pressure switch on the same port. according to my mechanical oil pressure gauge that I set up the engine oil pressure drops slowly and steadily after about 5 minutes running time...
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    Sullair 375 Compressor with John Deere Diesel

    I forgot to mention it has a JD 4024 motor..
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    Sullair 375 Compressor with John Deere Diesel

    Well as it turns out I did just today put a oil pressure on a tee with the oil pressure switch. So when i fired it up the oil pressure was reading just below 60 lbs. after about 5 mins though it started slowly dropping. I was opening the valve a little off and on to simulate typical air usage...
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    Sullair 375 Compressor with John Deere Diesel

    I realize this is a few years late but I just saw your post. I've been having identical issues with my 2007 sullair 185. I was wondering if you ever resolved this issue. I'm getting ready to change out the SSAM module because it seems like thats the only possibility. bypassed everything and it...
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