vewy, vewy carefully.
No screwdriver? To really do it right, you also need an alignment gauge, a cartridge scale, and a Fozgometer. That is almost $450 worth of stuff, although someone with lots of experience may be able to do it with less. The bare minimum would be a DB Systems protractor and a Shure mechanical scale (about $80, together.) In your case, there is no doubt that you should find someone to do it for you who has the tools and knowledge.
The glass thing is there to protect the cantilever from you. It should pull off easily, but you have to pull in the right direction.
No screwdriver? To really do it right, you also need an alignment gauge, a cartridge scale, and a Fozgometer. That is almost $450 worth of stuff, although someone with lots of experience may be able to do it with less. The bare minimum would be a DB Systems protractor and a Shure mechanical scale (about $80, together.) In your case, there is no doubt that you should find someone to do it for you who has the tools and knowledge.
The glass thing is there to protect the cantilever from you. It should pull off easily, but you have to pull in the right direction.