Lubricant supply filtration system

A system and method of filtering lubricant in a lubricant supply system are provided. Lubricant from a lubricant source (102) is directed into and through a coarse filter (124) that is configured to remove, from the lubricant, particulate of at least a first dimension. A fraction of the lubricant discharged from the coarse filter (124) is directed into and through a fine filter (126) that is configured to remove, from the fraction of lubricant, particulate having at least a second dimension that is less than the first dimension. Lubricant discharged from the fine filter (126) is directed back to the lubricant source (102).