Figure 581. Drain plug7. Remove the drain plug and allow the oil to drain intothe pan (Figure 58).8. When finished, install and tighten the drain plug.Note: Dispose of the used oil at a certified recyclingcenter.9. Fill the hydraulic tank with approximately 12 US gallons(45.4 l) of hydraulic fluid as specified previously; referto Checking the Hydraulic Fluid Level (page 19).10. Start the engine and let it run for a few minutes.11. Stop the engine.12. Checkthehydraulicfluidlevelandtopitoffifnecessary;refer to Checking the Hydraulic Fluid Level (page 19).13. Close the hood.Checking the Hydraulic LinesService Interval: Every 100 hours—Check the hydrauliclines for leaks, loose fittings, kinked lines,loose mounting supports, wear, weather,and chemical deterioration. (Makenecessary repairs before operating.)Every 1,500 hours/Every 2 years (whichever comesfirst)—Replace all moving hydraulic hoses.WARNINGHydraulic fluid escaping under pressure canpenetrate skin and cause injury. Fluid injected intothe skin must be surgically removed within a fewhours by a doctor familiar with this form of injuryor gangrene may result.• Keep your body and hands away from pinhole leaks or nozzles that eject high pressurehydraulic fluid.• Use cardboard or paper to find hydraulic leaks,never use your hands.44