Challenge Overheating, nOises and trOuble with val ve maneuvers Onboard mF hardingen, one of the hydraulic power units that operate the bow hydraulic port was overheating and making a lot of noise during operation. the high temperature caused varnish deposits to build up rapidly within the hydraulic system, creating trouble with valve maneuvers and interfering with the hydrostatic bal- ance within the oil system. sOlutiOn an eurOpaFilter Oi

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