The inlet filter in a hydraulic system should be about _____________ and have a _____________ for safety.

The correct answer is that the inlet filter in a hydraulic system should be about 100 microns and have a bypass for safety. In hydraulic systems, filters serve the critical function of removing contaminants from the fluid, which helps maintain system efficiency and prolongs the life of system components.

A 100-micron filter captures larger particles, which is suitable for protecting components from wear and damage while still allowing oil to flow freely at higher rates. This micron rating strikes a balance between filtration efficiency and flow capacity.

The presence of a bypass mechanism allows fluid to flow around the filter in case it becomes clogged or the pressure drops below a certain level. This ensures that the hydraulic system continues to operate effectively even in less-than-optimal conditions, preventing complete shutdown due to filter blockage.

Filters rated at smaller sizes, such as 3 microns, would cause more restriction and potentially lead to faster clogging without a bypass feature. While smaller filters are beneficial in certain contexts, they are more suited for downstream filters where contamination levels are lower, rather than as inlet filters. Similarly, a check valve functions differently than a bypass; it prevents backflow but does not provide the same level of operational safety in situations when filtration efficiency is compromised. Thus, the combination of a