TM 5-4310-451-14 Table 2-1.  Operator/Crew Preventive Maintenance Checks and Services (PMCS) (Con’t). B-BEFORE D-DURING A-AFTER W-WEEKLY INTERVAL ITEM TO BE INSPECTED EQUIPMENT IS NOT ITEM B D A W PROCEDURE: CHECK FOR AND HAVE REPAIRED, READY/AVAILABLE IF NO. FILLED, OR ADJUSTED AS NEEDED. 6 AIR COMPRESSOR OIL LEVEL WARNING Air compressor lubrication/cooling system Is under pressure.  DO NOT remove drain plug or filler plug from air compressor lubrication/cooling system while under pressure or Injury to personnel may result. • • Check air compressor oil level in sight tube.  Oil must  No oil is present in sight tube. be present in sight tube when unit is running. 7 ENGINE OIL LEVEL NOTE Air compressor unit must be level to perform this check. • Check engine oil level on dipstick.  Oil level should be  Oil is below "ADD" mark. between "ADD" and "FULL" marks. 8 DRIVEBELTS • a. Visually check for broken or missing belts. Belts are broken or missing. • b. Press down on belts and measure the deflection Belts deflect A in.  (12.3 mm) with rule or more.  Belts are cracked or . deteriorated. 9 FUEL SYSTEM • a. Visually inspect fuel system for signs of leakage. Any fuel leakage is present. • b. Visually inspect fuel tank for damage. Fuel tank damage which could result in fuel leakage. • c. Check fuel level on fuel level gage. Fuel tank is empty. 10 RADIATOR • Check coolant level at tank. Coolant is below minimum level. 11 ELECTRICAL • Check electrical wires for looseness or damage. Wires are loose or damaged. 2-11