Need to raise handle on brake and slide cam plate (lock plate) into position. Lift up on brake handle, and the plate should return to the “unlocked” position automatically.
Video showing proper operation
If not, remove weathervane coil plate with the 2 bolts, but be careful as the return spring is underneath it. Remove the 4 screws holding the lock plate in place and clean bottom of lock plate and surface below it on the brake coil. When reinstalling, make sure that the nut on the weathervane coil is not too tight, as it can interfere with free movement.
