TM 9-2320-209-20-3-1 c. Replacement. 1. Slide two clamps (l) on ignition unit (2). Slide one clamp up to ridge at top of ignition unit. 2. Set spacing between clamps (1) so holes in clamps line up with two threaded studs (3). 3. Put two clamps (1) over threaded studs (3). Put two lockwashers (4) on studs and screw on two nuts (5). Using 1/2-inch wrench, tighten nuts. GO TO FRAME 2 TA 047057 4-125