TM  5-2815-241-34&P FUEL INJECTOR - CONTINUED ACTION LOCATION ITEM REMARKS TESTING  -  CONTINUED 47. Injector  (1) 48. Knob  (3) 49. Transfer  line  (6) 50. T-handle  clamp  (8) 51. Retraction  lever  (9) 52. Plunger  (10) 53. 54. 55. 56. 57. Retraction  lever  (9) Shift  from  position  B  to  position  A. T-handle  clamp  (8) Loosen. Bubble  checker  (12) Observe. Transfer  line  (6) Pressure regulator   (13) Install on support plate (2) and clamp into position. Support  plate  may  be  tilted  for  easier Installation. Adjust  to  obtain  proper  clearance  with thickness  gage  (4)  between  knob  and locknut  (5). Screw  in  and  tighten  in  injector  drain port (7). Tighten. Shift from position A to position B, making sure  plunger  (10)  retracts. Rotate  in  clockwise  direction  by  small  lncre- ments,  observing  airflow  meter  (11).  Stop rotation  when  highest  reading  is  obtained. If  airflow  meter  indicates  in  excess  of 4.5,  replace  injector  barrel  and plunger. This applies 200 lb (90.8 kg) load to plunger. If  bubbles  occur  In  10  seconds,  or  If time  Interval  between  consecutive bubbles  exceeds  5  seconds,  replace injector  cup. Unscrew and remove from injector drain port. Release  air  pressure. 2-370