TM  10-3930-638-24&P 2-7.   ORGANIZATIONAL   Preventive   Maintenance   CHECKS   AND   SERVlCES   (cont Legend W-Weekly S-Semiannually Q-Quarterly A-  Annually Item Interval ITEM TO BE INSPECTED no. W Q S A Procedure 8 FUEL  FILTERS Replace in-line, primary, secondary, and injection pump inlet filters. 9 FUEL STRAINER Remove strainer from fuel tank. clean. inspect. and replace if clogged, torn, or deformed. 10 COOLING  SYSTEM Drain, flush, and refill radiator in accordance with TB 750-651. 11 PARKING  BRAKE  ASSEMBLY Check linings. If 1/8 inch or less, replace. 12 BRAKE   MASTER   CYLINDER Check fluid level Add silicone brake fluid to within 1/2 inch of fill plug opening. Check interior of master cylinder cap for rust. Clean as necessary and coat with silicone brake fluid. 13 BATTERIES WARNING DO  NOT  SMOKE  OR  ALLOW  ANY  FLAME  OR  SPARK  IN  THE  VICINITY  WHILE CHECKING  OR  FILLING  BATTERY.  THE  BATTERY  GENERATES  HYDROGEN, HIGHLY  EXPLOSIVE  GAS. CAUTION IN  COLD  WEATHER  OPERATIONS,  CHARGE  BATTERY  IMMEDIATELY  AFTER ADDING WATER TO COMBINE THE WATER WITH BATTERY ELECTROLYTE TO  PREVENT  FREEZING.  BE  CAREFUL  NOT  TO  OVERFILL  WHEN  SERVICING BATTERIES. a. Test battery to determine cell condition (Ref TM 9-6140-200-14 b. Clean battery top and terminals. Insure all connections are tight. Change 3 2-5 (2-6 blank)