TM 55-1930-209-14&P-19 Table 8-2.  Preventive Maintenance Checks and Services for Fuel Oil System (Continued) B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY 4 ·     Valves a. Operate each valve through its full range of operation. b. Check valves.  Replace or remake worn or damaged valves in accordance with TM 55-503. 5 · Fuel Oil Line a. Remove and replace screw-on fuel line Filter Element filter element. b. Discard old filter. 6    ·    Fuel Catch a. Check for clogging in catch basin.  If Basin clogged, use compressed air to unclog strainer. b. Check for fuel in catch basin.  Clean basin with water. 7 ·    ·    · Fuel Oil Filling a. Check fuel hose and nozzle for leaks, Class III leaks. Station cracks and bends. Repair or replace as required. b. Check that ball valve moves freely. Ball valve inopera- Repair or replace as required. ble. 8-7/(8-8 blank)