This tube is attached by a house clamp to a nipple welded to the frame.

Loosen the house clamp with a Flathead Screwdriver. Do not remove the tube until you have your drain pan in position.

Pull the hose free from it's nipple and allow the oil to drain into your drain pan.

When the oil slows to a drip, replace the hose. Do not tighten the clamp yet, we will return for that later.