Bow/Stern Thruster · Bow/Stern Thrusters
Kawasaki KT-B3 Series Side Thruster — Bow thruster for small-to-medium vessels - berthing and positioning.
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| Gearbox oil sample/analysis | typically every few thousand running hours or per the manufacturer's schedule - confirm the current interval in the thruster manual |
|---|---|
| Shaft seal inspection | at each dry-docking, or sooner if oil contamination is found |
| Hydraulic oil and filter change, pitch control units | per the manufacturer's manual, running-hour based |
| Blade and tunnel visual/diver inspection | at dry-docking or via underwater survey between dockings |
| Bearing grease replenishment | per the manufacturer's schedule |
Where enrolled in Continuous Machinery Survey, class checks gearbox oil sample trend records, shaft seal condition confirmed at dry-docking, and a functional test of thruster control and alarms from the bridge; otherwise the thruster is examined at the vessel's periodic survey.
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