u/Comfortable_Ice_537

This 590 came to me with a broken brake handle, and the brake engaged. I took the mechanism apart to get it disengaged, and I’m having trouble getting it back together. Once I pop the spring in the slot, there’s so much spring pressure that the brake engages, and there seems like not enough leverage in the cam mechanism to disengage it. It also twists the spring slightly, and i can’t get the spring cover on.

This is a new brake band, but otherwise all OEM as far as I know. Should it be that difficult? Have I assembled something wrong? TIA for any advice.