TM9-2320-361-34 17-6. ENGINE COOLANT HEATER FUEL CONTROL VALVE REPLACEMENT THIS TASK COVERS: a. Removal b. Installation INITIAL SETUP APPLICABLE MODELS All TEST EQUIPMENT Multimeter (Appendix B, Item 3) TOOLS General mechanic’s tool kit (Appendix B, Item 1) Tool kit, electrical (Appendix B, Item 2) REFERENCES (TM) TM 9-2320-361-20 TM 9-2320-361-34P EQUIPMENT CONDITION Engine coolant heater removed (TM 9-2320-361-20). a. Removal NOTE Tag wires for installation. 1. Remove four screws (8) and guard (7) from heater housing (6). 2. Remove nut-assembled lockwasher (2), ground lead (3), air tube (4), and elbows (1) and (5) from heater housing (6). 3. Disconnect fuel control valve leads (9) and (10) from tab connector (19). 4. Loosen nut (16) and slide down fuel tube (15). 5. Remove screw-assembled lockwasher (22) and lead (21) from heater component bracket (20). 6. Remove screw-assembled lockwasher (11) and lead (17) from flame detector switch (18). 7. Remove two screw-assembled lockwashers (13) and fuel control valve (12) from bracket (14). b. Installation 1. 2. 3. 4. 5. 6. 7. Position fuel control valve (12) on fuel tube (15) and bracket (14). Tighten nut (16) and install fuel control valve (12) on bracket (14) with two screw-assembled lockwashers (13). Install lead (21) on heater component bracket (20) with screw-assembled lockwasher (22). Install lead (17) on flame detector switch (18) with screw-assembled lockwasher (11). Connect fuel control leads (9) and (10) on tab connector (19). Install air tube (4), elbows (1) and (5), and ground lead (3) on heater housing (6) with nut-assembled lockwasher (2). Install guard (7) on heater housing (6) with four screws (8). 17-14