The procedure is to remove the engine frame, drain the engine oil, remove the engine oil filter, reinstall the drain plug and oil filter, remove the transaxle converter cover bolt/stud and cover, disconnect the oil level sensor electrical connector, remove the engine harness retainer, remove the
Oil Pan bolts and the oil pan, drill out the oil pan gasket retaining rivets, remove the gasket, discard the gasket and rivets and clean and inspect the engine oil pan.