What was found
DURING ANNUAL, OIL PRESSURE SCREEN WAS REMOVED AND CHECKED FOR METAL, ETC. AFTER SCREEN WAS CLEANED IN PARTS WASHER, IT WAS NOTED THE SOLDERED SEAM OF THE INNER FINE MESH SCREEN WAS SPLIT. ON CLOSER INSPECTION, THE OUTER SCREEN SHOWED APPROXIMATELY FOUR STRANDS SEPARATED FROM THE SOLDER. THE AREA OF SEPARATION IS MIDWAY AND THE SCREEN LOOKS AS IF IT WAS SWOLLEN. SUSPECT AGE, HEAT CHANGES, AND DIFFERENTIAL OF PRESSURES ON THE INNER AND OUTER SIDES OF SCREEN FROM DIRT, GRIT, AND COLD THICK OIL WERE CAUSES. SUBMITTER STATED MORE FREQUENT AND THOROUGH CLEANING OF SCREEN OR REPLACMENT AT INTERVALS (500 HOURS OR 5 YEARS).