Quantcast 3-55.  FUEL INJECTOR TESTING; TEST NO. 3

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TM 9-2815-225-34&P 3-55.  FUEL INJECTOR TESTING; TEST NO. 3 THIS TASK COVERS: a.  Setting Up Test Stand d.  Adjusting and Measuring Fuel Delivery b.  Setting Up Injector on Test Stand e.  Top-stop Injector Adjustment c.  Testing Check Ball Seating INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All None SPECIAL TOOLS TROUBLESHOOTING REFERENCES Test stand link (15434) ST 790-331 Para. 2-8 Master injector (15434) ST-1262 EQUIPMENT CONDITION TEST EQUIPMENT Fuel injector test No. 2 performed (para. 3-54). Injector test stand (15434) ST-790 SPECIAL ENVIRONMENTAL CONDITIONS Work area clean and away from blowing dirt and MATERIALS/PARTS dust. Fluid, automatic transmission, type A (Appendix C, Item 11) Oil, lubricating, OE/HDO 30 GENERAL SAFETY INSTRUCTIONS (Appendix C, Item 21) None PERSONNEL REQUIRED Fuel and electrical systems repairman MOS 63G LOCATION/ITEM ACTION REMARKS a.  Setting Up Test NOTE Check fluid levels on injector test stand.  The cam box is filled to the top level of sight glass with OE/HDO 30 lubricating oil.  Refill when oil level drops to bottom level of sight glass.  Fill hydraulic fluid reservoir to bulb level with type A automatic transmission fluid.  Be careful not to allow oil to enter standpipe in center of reservoir.  The test oil level in stand must be kept at least 3/4 full of test fuel. 1. Timing wheel (11) Rotate so wheel mark and pointer are aligned. 2. Hydraulic valve (20) Open. CAUTION Do not operate test stand with load cell in position or damage may result. 3. Load cell tester (17) Position on test stand (27) and secure by opening air valve (21). 4. Air pressure regulator (22) a.  Adjust by turning knurled Load cell tester (17) must be knob (24) until load cell tester (17) between 370 and 390 when registers within coded range adjusted within marked band on markings. dial. b.  Lock in place with locknut (23). 3-362


 


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