Preventive maintenance of construction equipment extends equipment life and prevents costly failures. Equipment manufacturers provide maintenance schedules specifying maintenance intervals. Oil changes and fluid checks are routine maintenance extending engine life. Air filter replacement improves engine efficiency. Fuel filter maintenance prevents fuel system clogging. Hydraulic fluid quality is critical for equipment with hydraulic systems. Contaminated fluid damages seals and components. Hydraulic filter changes according to schedule prevent system failure. Belt and hose inspection identifies deterioration before failure. Cracked or worn belts slip and fail. Hoses with visible damage should be replaced immediately. Coupling and fastener inspection ensures they remain tight. Vibration can loosen fasteners over time. Regular inspection and tightening prevents failures. Lubrication of moving parts reduces friction and wear. Appropriate grease or oil must be used per manufacturer specification. Regular greasing extends bearing life significantly. Tire maintenance including pressure checks and rotation improves safety and reduces wear. Underinflated tires wear faster and affect performance. Overinflated tires are prone to blowouts. Preventive maintenance records document all maintenance performed. Records prove the equipment was well-maintained if questions arise. Equipment with good maintenance history is safer and more reliable.