Very simple. No fancy tools required. A narrow wood dowel is the least invasive. Remove crank. Dowel through one bearing and resting on backside of opposite bearing. Tap, tap, tap around the backside with small hammer blow and they will knock right out. Servicable greeen Loctite 609 is deliberately forumulated to be weak in shear. The Loctite however helps substantially in keeping the bearings in place and from creeping...which causes creak.