1. Locate the Oil Drain Plug. Refer to your owner's manual: The exact location of the drain plug may vary depending on your specific model. Inspect the engine: The drain plug is usually located at the bottom of the engine, often with a small bolt shape.. Keep the air filter at the top of the mower as you allow it to completely drain slowly. Husqvarna riding lawn mowers have a drain valve located at the bottom of the engine. Your owner's manual should tell you where to look. Remove the cap, open the drain valve and allow the used oil to drain into its container.
Draining The Oil. Locate the oil drain plug. It's typically found on the underside of the mower. Place the oil pan under the drain plug. Position the pan carefully to catch all the oil. Loosen the drain plug. Use a wrench to turn it counterclockwise until it's free. Allow old oil to flow into the pan completely. Replace the drain plug. Once.. Adjacent to the Oil Filter: Some Husqvarna mower models have the oil drain plug located near the oil filter. Tips for Finding the Oil Drain Plug. Consult the User Manual: If you still can't find the oil drain plug, refer to your user manual. It should contain a diagram showing the location of the plug.