Tunnel Thruster · Bow/Stern Thrusters
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
Other models of the same equipment type, Holland Roer Propeller first.
What our service work and the manufacturer documentation say about keeping this model running.
Inspect propeller and tunnel or retractable housing when accessible, seals, gearbox or bearings, lubrication, motor or hydraulic drive and control feedback. Review vibration, oil condition, temperature and thrust response. Test bridge and local control under an approved manoeuvring procedure. Refer to the manufacturer documentation for the exact figure for lubrication, clearance, electrical and wear limits.
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