Another successful overhaul was recently completed onboard, involving a Mt. Halla Main Starting Valve Actuator that had been exhibiting delayed response during opening operations. This issue directly affected the reliability and timing of the main engine starting sequence, making a full restoration essential to ensure safe and consistent performance. The actuator was removed and fully dismantled to allow for a complete internal assessment.

During the inspection, all mechanical components were cleaned and examined for wear, contamination, and degradation of sealing elements. Worn seals were replaced with new components to restore airtight integrity and eliminate internal leakage. The actuator was then reassembled with precision, ensuring correct alignment and smooth mechanical movement throughout the full stroke range. Once reinstalled onboard, operational testing was performed to verify proper response, timing, and coordination with the main starting valve mechanism.

The Improvement of the Air System’s Onboard Efficiency project focused on upgrading the vessel’s compressed‑air quality and overall system reliability. Our team successfully installed a high‑performance compressed air dryer along with a multi‑stage filtration unit designed to remove oil, moisture, and particulate contaminants. This combination ensures a steady supply of clean, dry, high‑purity compressed air, significantly improving the performance and protection of all air‑powered equipment onboard.

With the new dryer and filtration system in place, the vessel now benefits from extended equipment lifespan, reduced maintenance needs, and minimized operational downtime. The upgrade supports more sustainable and efficient daily operations, reinforcing our commitment to delivering dependable, future‑ready engineering solutions for the maritime industry.

The Main Starting Valve & Slow Turning Valve Overhauling involved a complete restoration of both units to ensure reliable and safe engine operation. Our team dismantled each valve assembly, carefully inspecting all internal components for wear, contamination, or mechanical damage. All parts were thoroughly cleaned, critical surfaces were checked, and worn seals or gaskets were replaced as needed. This process ensured that both the starting and slow‑turning valves were brought back to proper mechanical condition and free from any obstructions or sticking points.

After reassembly, each valve underwent functional testing to confirm correct operation, response timing, and airtight performance under working conditions. Once all checks were successfully completed, the valves were reinstalled in their respective positions, fully secured and ready for service. The overhaul restored smooth and dependable functionality, supporting safe engine starting procedures and controlled slow‑turning operations.

The M/E Maneuvering System Overhauling for the 6S60ME‑C main engine focused on restoring full reliability and responsiveness across all electro‑pneumatic control components. Our team carried out a complete inspection of the maneuvering system, dismantling key units, cleaning internal passages, and replacing worn parts such as solenoid valves, pneumatic actuators, seals, and control elements. All components were reassembled with new gaskets and O‑rings, ensuring proper sealing and stable operating pressure throughout the pneumatic network. The overhaul also included verification of signal transmission from the control system to the pneumatic units, ensuring that every command reached the engine accurately and without delay.

The maneuvering overhaul carried out on the SULZER RTA72U‑B main engine focused on restoring full reliability and responsiveness across all pneumatic and electro‑pneumatic control elements. Our team dismantled and inspected the maneuvering valves, cylinders, and associated components, replacing worn or damaged parts with new certified repair kits. Both pneumatic and electro‑pneumatic valves received new internal kits, seals, and moving elements to ensure smooth actuation and accurate transmission of control signals. The cylinders were also serviced, cleaned, and fitted with fresh sealing sets to eliminate air leaks and restore proper operating pressure.

Once all components were serviced, the valves and cylinders were reinstalled in their respective positions, and the entire maneuvering circuit underwent a detailed functional test. Start sequences, astern/ahead transitions, and speed‑change responses were checked to verify immediate and stable operation across all commands. The result was a fully overhauled maneuvering system with restored precision, improved reliability, and enhanced safety during all main engine handling conditions.