TM   5-2815-241-34&P ROCKER  ARM  HOUSING  AND  PUSH  ROD  -  CONTINUED ACTION LOCATION ITEM REMARKS 19. Six  adjusting screws  (5) Using 1/4-inch radius gage, check ball end  (8)  for  flat  spots  and  roundness. If  out-of-round,  or  flat  spots  are noticed,   replace. WARNING Drycleaning solvent P-D-680 is toxic and flammable. Wear safety goggles and gloves and use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes, and do not breathe vapors. Do not use near open flame or excessive heat. Flashpoint for type  #1  drycleaning  solvent  is  100°F  (38°C)  and  for  type  #2  is  138°F  (59°C).  If  you become dizzy while using solvent, get fresh air immediately, and get medical aid. If contact with eyes is made, wash your eyes with water, and get medical aid immediately. Failure to observe these precautions could cause serious injury or death to personnel. 20. Rocker  arm  shaft  (9) a. Using  drycleaning  solvent,  clean  oil passages   (10). b. Using  a  1-  to  2-inch  micrometer, measure outside diameter at several points  for  wear.  Visually  inspect  for scratches. If  scratched,  or  outside  diameter  is less  than  1.122  inch  (28.50  mm), replace. 2-249