TM 55-2210-224-12 Table 2-1.  Operator/Crew Preventive Maintenance Checks and Services NOTE Within the designated interval, these checks are to be performed in the order listed. B - Before D - During A - After INTERVAL Item Item To Be Procedures Equipment Is No. Inspected Check for and have repaired, Not Ready/ B   D A filled or adjusted as needed. Available If: MAKE THE FOLLOWING WALK-AROUND CHECKS: 1 • Exterior of a.  Visually inspect the following Any component is Locomotive items for proper operations, damaged that cracks, breaks, broken welds, and would impair damage: locomotive operation. Cab and engine hood doors and locks Handrails and uprights Cutter levers and steps Truck Assemblies (Check side bearing clearance) No clearance is Couplers apparent. Coupling mechanism • b.  Inspect under locomotive for There is evidence of fluid leakage (fuel, evidence of oil, or coolant). Class III leak. 2 • Foundation Inspect foundation brakes for Parts are loose Brakeshoes loose or dragging parts or dragging and Brake- heads. 3 • Trainline Air a.  Check trainline air hoses for Air hoses are Hoses and cracks, breaks, and deterioration. damaged. Fittings Check glad hands and gaskets for damage. b.  Check expiration date on Expiration date trainline hoses.  Replace 8 years past due. from date. 4 • Wheels Inspect wheels for defects and Wheel is worn or missing brakeshoes.  Check damaged.  Brake- that brakeshoes are in proper shoe is worn or alinement. missing. 2-19