Any question answered...

Is it not as simple as follows?

Apply a fresh layer of contact cement to the rim (2). Immediately fit the tire. Insert the valve. Pull the tire as firmly as possible, so that the final section of tire slips over the edge of the rim in an easy and controlled manner (4-7). Slightly inflate the tire and center its position. The edge of the protective tape serves as orientation (8). Inflate to approx. 9 Bar and push down on the whole of the tire’s circumference using your full bodyweight. Clean off any remnants of contact cement from the rim braking surface.

and then obviously leave to dry for a few hours