Item no. 22 23 24 25 26 27 Table 4-1. Unit Preventive Maintenance Checks and Services (PMCS) (cont). H – Hours of operation M – Monthly (As  indicated) (100 hours) S - Semiannually A – Annually (500  hours) (1000  hours) H Interval M S l l l l l l l l A l Item to be inspected Wheels  and  Tires Brakes Wheel  Bearings Hydraulic  Brake  Hoses  and Fittings Air Hoses and Fittings Procedures TM 5-6115-627-14&P Brake  Master  Cylinder Trailer - Road Test 4-13 a. b. a. b. c. d. Check serviceability of tires as indicated in TM  9-2610-200-24. Tighten wheel stud nuts to 450 to 500 ft-lb (611 to 678 N m). Inspect brake linings for wear. Replace if brake shoe lining is less than 1/8-inch (3.2 mm) thick. Inspect brake adjusting screw, retaining screw, retaining pins, springs, and clips for corrosion and wear. Inspect hydraulic wheel cylinders for leaks. Adjust  brakes. Clean and repack wheel bearings. Inspect for dents, cracks, loose connections and leaks. Inspect for dents, cracks, loose connections and leaks. Check fluid level. Fill to 1/2 inch from top. Perform road test paying special attention to items that were repaired or adjusted, in accordance with TM 9-2330-205-14&P.