Emulsified oil or seawater in drain
Kobelco Compact Seal CX-500, oil-lubricated stern tube seals (aft and forward)
Possible cause
Damaged No.1/No.2 rings or trapped foreign matter
What to do
Manufacturer's manual, p. 31Raise oil pressure 0.3–0.5 kgf/cm², drain emulsion, contact maker
See the assembly on the 3D model
Other Kobelco Compact Seal CX-500 faults
Stern tube oil above 60 °CBearing damage, cooler or thermometer faultSudden drop of stern tube oil levelLeak from aft or forward sealFresh water in drainLeak from aft peak tankForward seal tank level changesNo.4 or No.5 ring damage
From the manufacturer's manual “EM-35 KOBELCO COMPACT SEAL-STERNTUBE SEALING”. Check against the original on board before work.