- Loosen the cable tie securing the oil drain pipe.
- Place the oil drain pipe at the lowest position of the cutting disc and pass it out from the gap between the tracks.
- Take an empty engine oil bottle and place it at an angle, then insert the oil drain pipe into the empty engine oil bottle.
- Loosen and remove the engine oil cap.
- Turn the oil drain valve 90 degrees counterclockwise to open the engine oil drain valve at the bottom of the engine and begin draining the oil.
- Wait for several minutes to drain the oil (usually about 10 minutes, depending on the ambient temperature).
- Turn the oil drain valve at the bottom of the engine 90 degrees clockwise to close it.
- Pull back the oil drain pipe and fix it in the designated position.
- Add new special engine oil (if there is no engine oil in the engine, add 3L).
- Use the dipstick to measure the amount of engine oil added and make sure it is within the specified range.