TM   5-2815-241-34&P FUEL INJECTOR - CONTINUED ACTION LOCATION ITEM REMARKS NOTE When testing check ball seating, hold injector in hand. Do not place in ST-790 injector test  stand  holding  device. 78. Injector (2) 79.   ST-790   injector test  stand  (9) Plunger  (1) Motor  switch  (10) Hold  plunger  down  in  injector. Place  in  start  position. Check  temperature  gage  (11).  Test oil testing temperature should be 90° to 95°F (32° to 35°C). 80. Regulator  knob  (12) 81. ST-708    burnishing tool  adapter  orifice plug  opening  (14) 82. 83. Adjust by turning until pressure gage (13) reads 150 psi (1034 kPa). Check for leakage. A slight see page of + 1 or -2cc from the flow code stamped on the in- jector  is  acceptable. If  leakage  exceeds  specifications, replace  check  ball.  See  steps  1  thru  7 and 17 thru 27. Motor  switch  (10) ST-790   injector   test stand  inlet  line  (7) and  drain  line  (8) Place  in  stop  position. Disconnect  from  ST-708  burnishing  tool adapter  (5). T A    2 4 2 5 9 0 2-375