TM 9-2815-225-34&P 3-53. FUEL INJECTOR TESTING; TEST NO.  1 THIS TASK COVERS: a.  Cup to Plunger Seal Test c.  Check Ball Leakage Test INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All None SPECIAL TOOLS TROUBLESHOOTING REFERENCES Injector adapter pot (15434) 3375086 Para. 2-8 Plug (15434) ST-668-14 Plunger extension (15434) ST-1089 EQUIPMENT CONDITION Injector assembly removed (para. 3-23). TEST EQUIPMENT Injector leakage tester (15434) 3375375 SPECIAL ENVIRONMENTAL CONDITIONS Work area clean and away from blowing dirt and MATERIALS/PARTS dust. Oil, lubricating, OE/HDO 10 (Appendix C, Item 20) GENERAL SAFETY INSTRUCTIONS None PERSONNEL REQUIRED Fuel and electrical system repairman MOS 63G LOCATION/ITEM ACTION REMARKS a.  Cup to Plunger Seal NOTE The  assembled  injector  is  tested  and  calibrated  without  the  top-stop  screw  and  top-stop locknut. 1. Plunger(8), retainer (7), Remove. injector spring (6), filter screen clip (9), and filter screen (10) 2. Plunger extension (2) Install on plunger (8) and place in injector assembly (1). 3. Injector assembly (1) a.  Align injector delivery orifice Lubricate three gaskets (12) with (11) with burnishing hole (5). OE/HDO 10 lubricating oil. b.  Using hand pressure, press into adapter (4) until it bottoms. c.  Insert and tighten locating screw (3) in adapter (4). d.  Plug fuel inlet port.   Use plug (ST-668-14). 3-352