FUEL TANK MAINTENANCE (Cont'd)

TM 9-2320-280-20-2 3-46 Change 2 3-24. FUEL TANK MAINTENANCE (Cont'd) NOTE • Use pipe sealant on all vent line and fuel line connector threads before installation. • Use fittings from old tank if installing new tank. 1. Install vent line (18) to tee fitting (19). 2. Install filler spout hose (16) on tank (17) and secure with clamp (15). 3. Apply sealing compound to threads of fuel supply tube (12), and install and align fuel supply tube (12) on access cover (11). 4. Apply sealing compound to threads of fuel return tube (29), and install and align fuel return tube (29) on access cover (11). NOTE Perform step 5 only if vehicle has an arctic heater installed. 5. Apply sealing compound to threads of arctic heater fuel supply line (13), and install and align arctic heater fuel supply line (13) on access cover (11). 6. Install grommet (3) and vent valve (4) to access cover (11). 7. Install fuel strainer (14) on fuel supply tube (12). NOTE Perform steps 7.1 through 7.4 for vehicles with fuel tank P/N 12460105. 7.1 Insert fuel tank baffle (19.5) and support baffle (19.8) into fuel tank (17). 7.2 Secure support baffle (19.8) to fuel tank baffle (19.5) with four washers (19.7) and locknuts (19.6). 7.3 Install twelve O-rings (19.1) on retainer (19.2), and secure retainer (19.2) to support baffle (19.8) with eight washers (19.3) and capscrews (19.4). 7.4 Apply adhesive to threads of nine locknuts (9), and install retainer (19.2), gasket (28), and access cover (11) on fuel tank (17) and with nine washers (10) and locknuts (9). Tighten locknuts (9) to 72 lb-in. (8 N•m). NOTE Perform step 8 for vehicles with fuel tank P/N 12358588. 8. Apply adhesive to threads of nine locknuts (9), and install retainer (27), gasket (28), and access cover (11) on fuel tank (17) with nine washers (10) and locknuts (9). Tighten locknuts (9) to 72 lb-in. (8 N•m). 9. Connect jumper harness leads 28B (1) and 58J (2) to fuel level sender (30). 10. Apply adhesive to threads of two locknuts (6) and secure jumper harness (5) to fuel tank (17) with two clamps (8), washers (7), and locknuts (6). Tighten locknuts (6) to 72 lb-in. (8 N•m). 11. Connect fuel supply line (26) to fuel supply tube (12), and fuel return line (25) to fuel return tube (29). NOTE Perform step 12 if vehicle has an arctic heater installed. 12. Connect arctic heater fuel supply line (20) to arctic heater fuel supply tube (13). 13. Secure shield (21), return line (25), supply line (26), clamp (24), and arctic heater fuel supply line (20) and clamp (23) if installed, to fuel tank (17) with capscrew (22). e. Assembly