TM 9-2320-361-34 I 17-8. ENGINE COOLANT HEATER FUEL TUBE AND PREHEAT RESISTOR REPLACEMENT THIS TASK COVERS: a. Removal b. Installation INITIAL SETUP APPLICABLE MODELS MATERIALS/PARTS All Sleeve (Appendix F, Item 262) TEST EQUIPMENT REFERENCES (TM) Multimeter (Appendix B, Item 3) TM 9-2320-361-34P TOOLS General mechanic’s tool kit (Appendix B, Item 1) Tool kit, electrical (Appendix B, Item 2) EQUIPMENT CONDITION Engine coolant heater overheat switch and igniter removed (para. 17-7). NOTE Tag wires for installation,. I a. Removal 1. Remove two screws (1), bracket (2), flange (3), and tapping plate (4) from heater housing (15). 2. Remove grommet (14) from hole (13) in heater housing (15) and slide up on lead (10). 3. Remove nut-assembled lockwasher (5), screw-assembled lockwasher (9), and lead (10) from pre- heater resistor (8). 4. Remove fuel tube (11) with preheat resistor (8) from burner (12). 5. Remove sleeve (6), nut (7), and preheat resistor (8) from fuel tube (11). Discard sleeve (6). 1. Install preheater resistor (8), nut (7), and new sleeve (6) on fuel tube (11). b. Installation 2. Install fuel tube (11) with preheater resistor (8) on burner (12). 3. Insert lead (10) through hole (13) in heater housing (15) and install on preheater resistor (8) with screw-assembled lockwasher (9) and nut-assembled lockwasher (5). 4. Install grommet (14) in hole (13) on heater housing (15). 5. Position tapping plate (4), flange (3), and bracket (2) on heater housing (15) and install with two screws (1). 17-20