PROBABLE CAUSES FOR KNOBS STICKING (NOT RETURNING TO RESTING POSITION):
1) Knobs screwed-on to spindle too tight. SOLUTION: loosen hex screws, unscrew knob one-half turn, retighten hex screws on "quarter hour".
2) Older knobs with wrong nylon bushing (RM853). SOLUTION: use correct bushing (rose/long plate= 705019, short plate= 705027)
3) Rose/short plate mis-positioned, causing binding. SOLUTION: loosen mounting screws, push rosettes up slightly, make certain screws are vertical, re-tighten screws EVENLY
4) Long plates mis-positioned, causing binding. SOLUTION: remove mounting screws from one side, and remove trim. Reposition trim so there is no binding. Install screws in new position.