5-8. FUEL INJECTOR PUMP AND REPLACEMENT.

FUEL INJECTOR VALVE ASSEMBLY REPLACEMENT. - Continued.

Figure 5-2. Fuel Injector Pump Repair and Replacement.

TM-9-4310-394-13 Air Conditioner Vertical Compact 6 000 BTU/HR 115 Volt Single-Phase 50/60 Hertz Manual
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TM 9-4310-394-13 5-8. FUEL INJECTOR PUMP AND REPLACEMENT. This task covers: a. Removal b. Inspection c. Installation INITIAL SETUP Tools Required Tool Kit, General Mechanic's (Appendix B, item 1) Material's/Parts Required Gasket, 114250-01840 (Appendix H, Item 12) Equipment Condition Air compressor unit shut down and cool. Fuel tank removed (see para. 4-18). a. Removal. (Refer to Figure 5-2). (1) Disconnect fuel injector pipe (1), clamp (2), and fuel line (3) from fuel injector pump. (2) Remove hex nut (4) securing pump viewing access plate (5) and gasket (6). Discard gasket. (3) Remove two hex nuts (7) securing fuel injection pump (8), and remove pump together with base mounting plate. NOTE The engine may be equipped with either one or two shims. Be sure to count the number of shims used on your engine so that the same number of shims are used during installation of the fuel injector pump. (4) Remove two metal shims (9). (5) If flat tappet (10) is not removed with fuel injection pump, then remove flat tappet with fingers. b. Inspection. Check for damaged parts and/or evidence of leakage. c. Installation. NOTE When replacing or installing a new fuel injection pump, it is usually not necessary to test or adjust the injection timing. Run the engine and observe performance and exhaust color (refer to Table 4-2) before adjusting timing. (1) Insert bottom flat tappet (10) down into engine block, closed end first. (2) Adjust speed control lever knob until governor yoke (11) is centered in engine block opening. (3) Refer to Figure 5-3. The access hole on fuel injection pump has an access hole pointer match mark (1). Make sure the pointer (2) of the control lever lines up with the match mark. 5-8

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