You shouldnt need to lift the rubber like this video shows, but otherwise its right.
https://www.youtube.com/watch?v=-jbnFuVWTdk Keep your hand on the handle of the screwdriver.
Keep one hand in your back pocket when working on it if it hasnt been discharged. That prevents voltage from going thru your heart if you get zapped. Stay away from the caged area where the flyback is and the wire that goes to that hole you are discharging.
I did a recap a year ago on a large rca of that year but the chassis is different. A lot of the caps I had to crush, loop the ends, and solder new cap on. Most of the important resistors were easy to test and replace. You may want to replace the electrolytic caps too.