KIT-OVHL MAJOR 4902102 - Caterpillar

You must read and understand the warnings and instructions contained in the Safety section of this manual before performing any operation or maintenance procedures.Hydraulic Tank Oil
Change the Oil
Operate the machine long enough to warm the oil.The machine should be level. All implements lowered to ground with slight down pressure. Transmission lock lever and parking/secondary brake engaged, and the engine stopped. 1. Remove the hydraulic system oil tank filler cap. 2. Open the drain valve, located in the bottom of the hydraulic tank. Allow the oil to drain.3. Close the drain valve.4. Change the hydraulic system filter. See "Hydraulic System" in the "Every 500 Service Hours or 3 Months" section.5. Remove the fill screen. Clean and install fill screen.6. Fill the hydraulic system oil tank. See "Lubricant Viscosities and Refill Capacities."7. Inspect the filler cap gasket. Replace the gasket if damaged.8. Install the oil filler cap.9. Start and run the engine for a few minutes. 10. Maintain the oil level to the FULL mark in the sight gauge (1). Add oil through the fill tube (2), if necessary.11. Stop the engine.Differentials and Final Drives
Change the Oil
1. Position each wheel with the drain plug down. Remove the drain plugs and drain the oil. 2. Remove the front differential access plug. 3. Remove the rear differential access plug, located near the rear of the rear case guard.4. Remove the front and rear differential drain plugs and allow the oil to drain.5. Clean and install all drain plugs and access plugs. 6. Remove the front differential and final drive fill plugs. 7. Remove the rear differential and final drive fill plug, located at the right front of the rear axle housing. 8. Fill the front differential and the final drives through fill opening. See the "Lubricant Viscosities and Refill Capacities" chart. 9. Fill the rear differential and final drives through the fill openings. See the "Lubricant Viscosities and Refill Capacities" chart. Clean and install the fill plug. 10. If the complete amount of oil listed in the "Refill Capacities" chart will not go into the housing, install the plug. Run the machine on level ground a few minutes to equalize the oil in the differential and final drives. 11. Remove the fill plug and add the remaining oil. 12. Operate the machine a few minutes and recheck the oil level. Oil should be to the bottom of the fill plug opening.Engine Valve Lash
Adjust
To prevent possible injury, do not use the starter motor to turn the flywheel.Hot engine components can cause burns. Allow additional time for the engine to cool before measuring valve clearance.
Measure the valve lash with the engine stopped. To obtain an accurate measurement, allow at least 20 minutes for the valves to cool to engine cylinder head and block temperature.
Adjust the valve clearance to within 0.08 mm (.003 in) of the valve clearance setting given in the chart. Refer to the Service Manual or your Caterpillar dealer for the complete valve adjustment procedure.Engine Valve Rotators
Observe Rotation of Valves