TM-9-2320-365-20-3 LMTV Unit Maintenance Manual M1078 Series - Volume 3 Download
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TM 9-2320-365-20-3 4-7. ORIFICE TUBE ASSEMBLY REPLACEMENT This task covers: a. Removal b. Installation c. Follow-On Maintenance INITIAL SETUP Equipment Conditions Engine shut down (TM 9-2320-365-10). Cab raised (TM 9-2320-365-10). Fuel pressure regulating valve removed (para 4-3). Fuel ratio control tube removed (para 4-6). Tools and Special Tools Tool Kit, Genl Mech (Item 44, Appendix C) Wrench, Torque, 0-175 lb-ft (Item 57, Appendix C) Materials/Parts Packing, Preformed (Item 186, Appendix G) WARNING Diesel fuel is flammable. If fuel is spilled, clean it up immediately. Failure to comply may result in serious injury or death to personnel. a. Removal. (1) Remove two screws (1) and washers (2) from orifice tube assembly (3). (2) Remove screw (4), orifice tube assembly (3), and preformed packing (5) from cylinder head (6). Discard preformed packing. b. Installation. (1) Position preformed packing (5) on cylinder head (6). (2) Position orifice tube assembly (3) on cylinder head (6) with screw (4). (3) Position two washers (2) and screws (1) in orifice tube assembly (3). (4) Tighten screw (4) to 15-25 lb-ft (20-34 N·m). (5) Tighten two screws (1) to 33-47 lb-ft (45-64 N·m). 4-40