TM 5-4310-386-14 Table 4-1.  Unit Preventive Maintenance Checks and Services (PMCS). W - Weekly M - Monthly S - Semiannually H - Hourly Interval Item No. W M S H Item to be Inspected Procedures 11 Exhaust system Inspect for leaks, holes and cracked seams, loose or missing parts.  Replace damaged parts.  Refer to para. 4-39. 12 600   Intake manifold Inspect for cracks, leakage around gasket, loose, damaged, or missing parts.  Replace damaged parts.  Refer to para. 4-38. 13 Fuel lines and fittings Inspect for leakage, crimped tubing, fitting tightness and seal, and for damaged fitting threads.  Replace damaged parts.  Refer to para. 4-31. 14 250   Fuel filter assembly Service fuel filter.  Refer to para. 4-33. 15 100   Oil bath filter assembly Service oil bath filter.  Refer to para. 4-37. 16 Starter Inspect for cracks, loose, damaged, or missing parts.  Test starter and replace.  Refer to para. 4-47. 17 Starting aid Inspect starting aid for cracked brackets, loose, damaged, or missing parts.  Replace damaged parts.  Refer to para. 4-48. 18 Alternator Inspect for cracks, loose, damaged, or missing parts.  Test alternator and replace if defective. Refer to para. 4-44. 19 Alternator V-belt Inspect belts for wear, fraying, peeling, cracking and tension.  Adjust belt tension if belt deflection exceeds 1/2 in. (13 mm) (para. 4-41). 20 Wiring harness Inspect wiring harness for frayed or burnt wires. Replace damaged parts.  Refer to para. 4-43. 21 Battery, hold down Inspect battery and hold for loose, damaged, or and cables missing parts.  Inspect cables for cracks, or signs of burnt wires.  Check electrolyte level.  Add distilled water if level is low.  Refer to para. 4-45. 4-15