TM 10-3930-669-34 NOTE Headless  screw  is  part  of  adjusting device. (8) Mount headless screw in rocker bracket (13). NOTE Ensure   pressure   screw   is   screwed out   so   it   does   not   contact   engine during adjusting device installation. (9) Install  mounting  handle  on  headless  screw  until adjusting device is firmly seated on engine (6). (10) Tighten pressure screw  of  adjusting  device  until exhaust rocker arm (14) is depressed .20 to .23 in.  (5-6 mm). 3-11