today(sep 5th) in india we celebrate Teachers day, all the students wish their teachers. Happy teachers day sir and thank you for sharing your knowledge sirm really appreciate what you are doing 😊 here. keep it going sir.
Hi, thank you so much, appreciate your kind words and warm wishes. It means a lot to me to know that the knowledge and experiences I share is helpful to you. I remember one movie from India, the "Three Idiots", Sep. 05 was written on a wall😊. It is a special day for you. Wishing all the best to you in your learning journey!
Good day Sir, How to test the actual hydrolic lock alarm in steering gear system. I am not asking particular this vessel because some old vessel don't have VFD starter. As par the your experience how we will test the actual hydrolic lock alarm and how to make it normal after testing. Thanks for your hard work and sharing the your knowledge. 👍👍
Hi Raju, thank you for your question. First of all, there are different types of steering gears, the most common of which are rotary vane and ram-type. Depending on the type of steering gear you have, please refer to your gear's instruction manual for specific instructions on how to maintain and test your equipment. The presence of a VFD starter has little or no effect on the hydraulic lock alarm since it is primarily for the energy efficiency of the electric motor coupled to your pump. The main concern for a hydraulic lock is the continuity of the hydraulic fluid circuit being blocked or interrupted. Basically, a hydraulic lock occurs when: (1) there is a blockage of hydraulic fluid flow from the source (pump) via the directional control valve to the ram (fluid cylinder), which prevents the rudder from moving; or (2) there is a malfunction of mechanical or electrical parts. For example, if your ram is not moving after helm commands to move the rudder, the proximity sensor will detect this and trigger an alarm. To simulate the test, again, refer to your manual. The common way to test this is to remove the proximity sensor while the ram (cylinder) is moving so that it detects no movement and triggers an alarm. Alternatively, you can disconnect the electrical connection of the sensor to simulate the alarm. Another method is to manually close an isolation valve or partially close a directional control valve to block or restrict the hydraulic oil flow to the steering rams. This creates a condition where hydraulic pressure builds up without moving the rudder, mimicking a hydraulic lock. After completing the simulation test, ensure you return the sensor, wire connections, or valves to their original positions.
today(sep 5th) in india we celebrate Teachers day, all the students wish their teachers.
Happy teachers day sir and thank you for sharing your knowledge sirm really appreciate what you are doing 😊 here. keep it going sir.
Hi, thank you so much, appreciate your kind words and warm wishes. It means a lot to me to know that the knowledge and experiences I share is helpful to you. I remember one movie from India, the "Three Idiots", Sep. 05 was written on a wall😊. It is a special day for you. Wishing all the best to you in your learning journey!
Tq sir
Good day Sir, How to test the actual hydrolic lock alarm in steering gear system. I am not asking particular this vessel because some old vessel don't have VFD starter. As par the your experience how we will test the actual hydrolic lock alarm and how to make it normal after testing. Thanks for your hard work and sharing the your knowledge. 👍👍
Hi Raju, thank you for your question. First of all, there are different types of steering gears, the most common of which are rotary vane and ram-type. Depending on the type of steering gear you have, please refer to your gear's instruction manual for specific instructions on how to maintain and test your equipment.
The presence of a VFD starter has little or no effect on the hydraulic lock alarm since it is primarily for the energy efficiency of the electric motor coupled to your pump. The main concern for a hydraulic lock is the continuity of the hydraulic fluid circuit being blocked or interrupted.
Basically, a hydraulic lock occurs when: (1) there is a blockage of hydraulic fluid flow from the source (pump) via the directional control valve to the ram (fluid cylinder), which prevents the rudder from moving; or (2) there is a malfunction of mechanical or electrical parts. For example, if your ram is not moving after helm commands to move the rudder, the proximity sensor will detect this and trigger an alarm.
To simulate the test, again, refer to your manual. The common way to test this is to remove the proximity sensor while the ram (cylinder) is moving so that it detects no movement and triggers an alarm. Alternatively, you can disconnect the electrical connection of the sensor to simulate the alarm. Another method is to manually close an isolation valve or partially close a directional control valve to block or restrict the hydraulic oil flow to the steering rams. This creates a condition where hydraulic pressure builds up without moving the rudder, mimicking a hydraulic lock.
After completing the simulation test, ensure you return the sensor, wire connections, or valves to their original positions.