What should be done when the pressure differential gauge shows a yellow reading?

When the pressure differential gauge indicates a yellow reading, it serves as a warning that the filter separator elements are beginning to clog or are experiencing increased resistance to the flow of fuel. A yellow reading signifies that maintenance is required, but it does not necessarily mean immediate action, such as stopping all operations, is needed.

Changing the filter separator elements at this stage is a proactive approach that ensures continued efficiency and safety in fuel handling operations. By replacing the elements, you can restore optimal flow rates, prevent contamination, and maintain the integrity of the fuel system. Regular monitoring of pressure differentials and timely maintenance can help prevent more severe issues and assure fuel quality.

Other options may suggest actions that could either disrupt ongoing operations unnecessarily or fail to address the underlying issue indicated by the yellow reading of the gauge. Thus, addressing the warning by changing the filters aligns with proper fuel management practices and helps to maintain system performance.