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129 Maintenance Section
Illustration 249
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9. Remove filler cap (4) and fill the crankcase with new oil.
Illustration 246
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3. Position the end of hose (3) into a suitable container. Turn shutoff valve (2) counterclockwise in order to drain the engine oil from the crankcase. Turn the shutoff valve clockwise in order to close the shutoff valve. Allow the oil to drain from the hose. 4. Remove old engine oil filter (1) with a filterwrench. 5. Clean the filter housing base. Ensure that all of the old seal is removed. 6. Apply a thin film of clean engine oil to the seal of the new engine oil filter. 7. Install new engine oil filter (1) hand tight until the seal of engine oil filter (1) contacts the base. Note the position of the index marks on the filter in relation to a fixed point on the filter base. Note: There are rotation index marks on engine oil filter (1) that are spaced 90 degrees or 1/4 of a turn away from each other. When you tighten engine oil filter (1), use the rotation index marks as a guide. 8. Tighten the filter according to the instructions that are printed on the filter. Use the index marks as a guide. For non-Caterpillar filters, refer to the installation instructions that are provided by the supplier of the filter. Note: You may need to use a Caterpillar strap wrench, or another suitable tool, in order to turn the filter to the amount that is required for final installation. Make sure that the installation tool does not damage the filter.
10. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for more information on the type of oil that is required. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for more information on the quantity of oil that is required. 11. Check that the parking brake is engaged and that the transmission is in NEUTRAL and then start the engine. Operate the engine for five minutes at low idle. Inspect the engine for leaks and make any repairs that are necessary. 12. Stop the engine. Wait for two minutes after you stop the engine. Stopping the engine allows oil to drain back to the crankcase. Check the oil level. If necessary, add oil. Maintain the oil level between the "ADD" mark and the "FULL" mark on the dipstick. Install the filler cap. 13. Close the engine access door.
Engine Valve Lash - Check Maintenance is recommended by Caterpillar for engine valve lash adjustments. The maintenance for the engine valve lash is part of the lubrication and preventive maintenance schedule in order to provide maximum engine life. Note: The engine valve lash should be checked at every 2000 hours or 2 years. NOTICE Only qualified service personnel should perform this maintenance. Refer to the Service Manual or your Caterpillar Dealer for the complete engine valve lash adjustment procedure.
