TM 9-2815-225-34&P 3-63.  FUEL PUMP TESTING AND CALIBRATION (Contd) LOCATION/ITEM ACTION REMARKS m.  AFC Plunger Setting Procedures 94. Selector valve (36) Ensure it is set at ROTAMETER Throttle lever (48) should remain position. at full position. 95. No-air adjusting screw (111) Using no-air adjusting tool (113), No-air adjusting tool (113) is part and locknut (112) loosen locknut (112) and turn of AFC fuel pump adjusting tool no-air adjusting screw (111) until kit (3375189).  All adjustments it bottoms on fuel pump main to the AFC plunger setting must housing (51). be made when the no-air adjusting screw (111) is bottomed on the main housing (51).  Also ensure that the AFC plunger threads are sealed with liquid thread sealant. 96. Fast button (25) Depress until pump speed is 1600 rpm as indicated on tachometer (7). 97. Pressure regulator (9) Adjust to reduce air pressure reading on pressure gauge (8) to 10.00 in. Hg. (36,000 kPa). 3-508