1. Consult your Craftsman lawnmower owner's manual to determine the specific location of the oil drain plug for your model. This is important because the location may vary depending on the specific make and model of your mower.
2. Position the lawnmower on a flat, level surface, such as a driveway or garage floor. Ensure that the parking brake is engaged and the engine is turned off and completely cool.
3. Locate the bottom of the lawnmower and look for the oil drain plug. It is typically a 17mm or 19mm bolt, but it can also be a smaller bolt or a cap depending on the model. The drain plug is usually located on the bottom of the engine near the oil filter or on the side of the engine. It may be marked with the word "Oil Drain" or "Drain Plug".
4. If you cannot find the oil drain plug, refer to your owner's manual for additional guidance or consult with a qualified mechanic.
