TM  5-2815-241-34&P FUEL INJECTOR - CONTINUED ACTION LOCATION ITEM REMARKS TESTING WARNING When fuel is forced from injector spray holes, keep hands and body away from spray stream. High-pressure fuel may pierce the skin. NOTE The following testing procedures are based on use of the ST-990 leakage detector, ST-668  spray  angle  tester,  and  ST-790  injector  test  stand. 36.  ST-990  leakage detector  (1) Pressure regulator   (2) Set air pressure at 60 psi (414 kPa). 37. Cylinder   actuation valve (3) Operate three times, then reset pressure regulator  (2)  at  precisely  60  psi  (414  kPa). 38. Retraction  lever  (4) Place in position A. 39. Load cell (5) Position  on  leakage  detector  as  shown. 40. Load cell (5) Knob  (6) Adjust until load cell reads 200 psi (1379 kPa). 41. Locknut  (7) Place  thickness  gage  (8)  between  knob  (6) and  locknut. Adjust  only  when  load  cell  Is  used. 42. Load cell (5) Remove  from  ST-990  leakage  detector. T A    2 4 2 5 8 5 2-368