5. As shown in the figure: Install the right front foot tube into the elliptical
tube of the main frame, paying attention to the outer side of the wheel, and
then install the handle into the circular tube and lock it with a five-star knob.
6. As shown in the figure: Install the left front foot tube into the elliptical
tube of the main frame, paying attention to the outer side of the wheel, and
then install the handle into the circular tube and lock it with a five-star knob.
7. As shown in the figure: Align the crutch stand with the crutch stand seat
and buckle it in.