General Welding Consumables · Welding Consumables
Navigational radars are essential for safe maritime operations, providing critical situational awareness to ship crews. Operating with X-Band and S-Band frequencies, the SL-71MAG/ M21 radar system is designed to meet IMO SOLAS requirements, ensuring reliable performance in various conditions. This electromagnetic radar system uses advanced technology to detect obstacles and other vessels, enhancing safety at sea. Common issues that may arise include magnetron end-of-life after 5,000 to 8,000 hours of operation on magnetron models, bearing damage in the antenna rotation motor after 30,000+ hours, display backlight failures, heading marker misalignment, and moisture ingress into waveguides due to compromised pressurization. To mitigate these issues, it is recommended to keep a spare magnetron on board for magnetron models, with a lead time of 1-3 weeks for replacement. Regular maintenance is crucial; the SL-71MAG/ M21 requires annual lubrication of the antenna bearing and weekly performance monitoring tests as per IMO requirements. Additionally, an annual inspection should be conducted to ensure the system remains in optimal condition.
What our service work and the manufacturer documentation say about keeping this model running.
Magnetron replacement every 5,000-8,000 hours. Antenna bearing lubrication annually. Weekly performance monitor test (IMO requirement). Annual inspection.
Hyundai Welding Co., Ltd. (Pohang): Keep a spare magnetron on board (on magnetron models). Lead time: 1-3 weeks.
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