went to move the A and felt as if something was dragging. left front brake wont release after pedal is applied. I can rotate the brake arm with a wrench and get it to release. the left side releases as soon as the pedal is released. its late and wont tear into it until tomorrow. there is a grease fitting on the shaft could it be that easy? probably not. anyone have an idea what I should be looking at, is the brake arm spring loaded to return? thanks for any pre-teardown advice.