TM 10-3930-669-34 d. Assembly. (1) Install six studs (9) in flywheel (3). CAUTION Do not heat ring gear to more than a dull red color.  If ring gear is heated to a bright orange color, ring gear will be damaged.  Discard ring gear if heated to a bright orange color. (2) Heat ring gear (8) in a suitable oven at 248°F (120°C) until ring gear reaches oven temperature. WARNING Do   not   touch   hot   parts   with   bare hands; injury to personnel will result. CAUTION Ring   gear   must   be   installed   tightly against  shoulder  of  flywheel.    If  ring gear  is  not  against  shoulder,  it  may not allow starter to operate correctly. NOTE Ring gear will drop onto flywheel without force when heated. (3) Install ring gear (8) on flywheel (3). 8-71