Bear compound bow draw length adjustment

[270hunter]

I’m convincing my friend to get into archery and he finally bought a bow. It’s not high tech but it’s adjustable. 15 lb to 70 lb draw weight. 16” to 30” draw length. It’s a bear outbreak. I’m going to show him the ropes this weekend but I need to know if he needs to take it to a shop for a bowpress or i can adjust the draw length like my bow tech with Allen keys. Thanks for any insight