TM 10-3930-664-24 Table 2-1.  Unit Preventive Maintenance Checks and Services (cont) Item Item to Not Fully Mission No. Interval Check/ Service Procedure Capable If: 2 FUEL SYSTEM Quarterly a Fuel Check fuel lines for cracks, Fuel line is Lines kinks, dents, or bends damaged or Inspect fittings for signs fitting loose. of leakage.  Replace damaged lines (para 2-27). Quarterly b Fuel Inspect fuel tank for leaks Fuel shows Tank or contamination Drain and    signs of service (para 2-34) severe Replace fuel filter as contamination. required (para 2-36). 3 Quarterly BATTERIES Service batteries (para Battery is 2-77).  Inspect batteries damaged or for damage, corrosion, or leaking. evidence of leakage.  Clean cable lugs (para 2-77). Replace battery if damaged (para 2-78). 4 Quarterly BATTERY Inspect battery cables Battery cable CABLES for damage, corrosion, or is damaged. Cuts.  Clean cable (para. 2-79).  Replace cable if damaged (para 2-80). 4 BRAKE SYSTEM Quarterly a Fluid Check fluid lines for cracks, Fluid line is Lines kinks, dents, or bends damaged or Inspect fittings for signs fitting loose. of leakage Replace damaged lines (para 2-112). 100 Hours b Master Service master cylinders Cylinder is Cylinders (para 2-113).  Inspect for damaged. damage or evidence of leakage.  Replace as required (para 2-111). Sem- c Disc Brake Inspect and adjust disc annually Assembly brakes (para 2-107). 2-7