No, you wouldn't align a tuner or IF like that. Scopes back in the 40s didn't have the bandwidth to directly observe the IF waveforms. The oscilloscope is connected to a grid leak bias network on the mixer.
You can download the service info here. It covers the circuit theory and alignment instructions. There are also books on ebay covering vintage TV servicing and alignment if you'd like to learn more.
http://www.earlytelevision.org/pdf/a..._rider_tv4.pdf