Escher Wyss

USCGC Polar Star Oil Distribution Shaft

The Oil distibution shaft connects the rotating oil tube ports with the outside control hydraulic. If the gap between the white metal seal rings and shaft gets to big, oil starts to flow into the feedback circuit. 

We cleaned the surfaces and tested for tolerances. New babbitted high preasure seal rings where installed. The low pressure sealing areas had to be reconditioned to be within tolerance. 


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