TM 9-2320-361-34 5-2. FUEL INJECTOR NOZZLE AND HOLDER REPLACEMENT(Contd) WARNING Diesel fuel is flammable. Do not perform fuel system procedures near open flame. Injury to personnel may result. CAUTION Cap or plug all openings immediately after disconnecting lines and hoses to prevent contamination. Remove caps or plugs prior to installation. Failure to do so may result in damage to equipment. NOTE All fuel injector nozzle and holder assemblies are removed and installed basically the same. This procedure covers no. 4 cylinder injector nozzle. 1. Loosen tube nut (12) on fuel injector tube (6) and disconnect from fuel injector nozzle (4). 2. Remove locknut (11), screw (9), washer (8), two retainers (7), and cushions (10) from injector tubes (5) and (6). Discard locknut (11). 3. Remove two screws (1), lockwashers (2), fuel injector holder (3), and fuel injector nozzle (4) from engine (13). Discard lockwashers (2). 4. Remove dust seal (14) from fuel injector nozzle body (15). Retain dust seal (14) if serviceable. For fuel injector nozzle cleaning, inspection, and repair procedures, refer to TM 9-2815-210-34-2-2. c. Installation a. Removal b. Repair 1. 2. 3. 4. 5. 6. 5-2 Apply a coat of silicone compound to fuel injector nozzle body (15). Install dust seal (14) onto fuel injector nozzle body (15). Install fuel injector nozzle (4) and holder (3) into engine (13) with two new lockwashers (2) and screws (1). Evenly tighten two screws (1) 13-15 lb-ft (17-20 N.m). Connect fuel injector tube (6) to fuel injector nozzle (4) with tube nut (12). Install two cushions (10) and retainers (7) on fuel injector tubes (5) and (6) with washer (8), screw (9), and new locknut (11).