Phosporus in Mobilgear SHC 320

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Why phosphorus contain in Mobilgear SHC 320 oil analysis result are so high even the oil is just using in 2 days. This oil is for Flender gearbox for cement plant. What are the disadvantages if we are not fully flushing the oil when change from mineral to synthetic gear oil?

11/30/105:36 PM

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Original Post

rgf12Member

My baseline testing of the Mobil SHC line of oils indicates that the phosphorus content is around 700 to 900 PPM for new oil. Its an EP additive that will decrease over time as the additives are depositied on the internal metal surfaces of the machine. Baseline your new, unused oil with a full slate of tests including spectro and you will know where your starting from. In my experience any phosphorus level under 300PPM in these oils would be a flag to start trending closely or change the oil.

1/6/116:53 AM

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