Tunnel Thruster · Bow/Stern Thrusters
Regular maintenance and inspection are crucial for the reliable operation of marine propulsion systems like the Kongsberg/Rolls-Royce TT-4000 bow tunnel thruster. This thruster is designed to deliver a powerful 4,000 kW of thrust, generating up to 480 kN, with a propeller diameter of 3,700 mm. It is part of a series of tunnel thrusters that offer a range of power and size options suitable for various vessel requirements. The TT-4000 is equipped with robust hydraulics and advanced lubrication systems, including double gear pumps for steering, lubrication, and hydraulic fluid circulation, with double cylinders featuring pressure tube safety features. Regular checks should include inspecting the propeller blades for wear, cracks, and deformation, as well as ensuring that the propeller shaft seals are free of leaks and oil loss. Additionally, hydraulic fluid condition should be monitored for contamination, moisture, and color changes, and all hydraulic lines and connections should be visually inspected for any signs of damage or corrosion.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
Free of charge — send us your request for Kongsberg/Rolls-Royce equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Kongsberg/Rolls-Royce first.
Tell us what you need for this Kongsberg/Rolls-Royce TT-4000 bow — a part, a service call, a second opinion. Are you Kongsberg/Rolls-Royce? Claim this brand page.
Service engineer? Write the day report for this TT-4000 bow in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.