How do I replace broken lower duct hose

There is a hose (clear and reinforced with steel coil wire) that connects the floor nozzle to the bottom of the upright handle or “Tube” as it is called in owner’s manual . This hose is called the “lower duct hose”. It’s purpose is to extract all of the debris, that the “beater bar” (brush) stirs up, and suck it up and into the collection tank. This hose has split and causes my cleaner to continuously drop most debris back onto floor. I have the replacement hose but I need a video or some kind of instructions to assist me with this task.