TM 9-2320-209-34-2-3 FRAME 2 1. Loosen jamnut (1) and unscrew adjusting screw (2) until it is free of spring seat (3). 2. Slowly tighten adjusting screw (2) until it touches spring seat (3). Tighten adjusting screw 1/4 turn more and tighten jamnut (1). GO TO FRAME 3 21-189