Tighten the shoes to the point where the drum will just slip on. If you are using a new or turned drum then the adjuster should take it from there. If you are not having the drum turned there will be a lip that you will need to get the lip over the shoes then you will need to tighten the shoes using the screw. I recommend that if you take the drum off and replace the shoes you turn the drum for best seating and braking power.