What maintenance action can reduce the risk of contamination in pumps?

Regularly checking and replacing filters is key to maintaining the integrity of hydraulic systems and reducing the risk of contamination in pumps. Filters are designed to capture particulates, dirt, and other contaminants that can enter the fluid system, which if allowed to circulate, can cause wear and damage to internal components of the pump. By consistently monitoring filter condition and replacing them as necessary, one ensures that the hydraulic fluid remains clean and that the pump operates efficiently, thus extending its lifespan and maintaining system reliability.

In comparison, changing the pump fluid every week may not be practical or necessary and could introduce new contaminants if not done with extreme care. Rinsing the pump with water may not effectively remove all contaminants and could lead to corrosion or internal damage due to moisture retention. Lubricating the outer surface addresses mechanical friction but does not tackle contamination issues within the hydraulic fluid itself. Therefore, the regular servicing of filters is the most effective action for preventing contamination in pumps.