TM 9-2320-361-34 17-11. PERSONNEL HEATER GUARD AND BLOWER MOTOR REPLACEMENT a. Guard Removal c. Blower Motor Installation b. Blower Motor Removal d. Guard Installation INITIAL SETUP APPLICABLE MODELS MATERIALS/PARTS All Screw-assembled lockwasher TEST EQUIPMENT (Appendix F, Item 169) Multimeter (Appendix B, Item 3) REFERENCES (TM) TM 9-2320-361-20 TOOLS TM 9-2320-361-34P General mechanic’s tool kit (Appendix B, Item 1) EQUIPMENT CONDITION Tool kit, electrical (Appendix B, Item 2) Fuel burning personnel heater removed (TM 9-2320-361-20). NOTE Tag wires for installation. a. Guard Removal Release two dzus fasteners (10) and remove guard (1) from heater housing (7). I b. Blower Motor Removal 1. Remove screw-assembled lockwasher (2) and blower motor lead (3) from flame detector switch (4). Discard screw-assembled lockwasher (2). 2. Remove screw (5) and nut-assembled lockwasher (9) from clamp (6) and ignition control unit (8). 3. Remove grommet (11) from heater housing (7). 4. Loosen four screw-assembled lockwashers (12) and remove blower motor (13) from heater housing (7). I c. Blower Motor Installation I 1. Install grommet (11) in heater housing (7). 2. Route blower motor lead (3) through grommet (11) in heater housing (7). 3. Install blower motor (13) on heater housing (7) by tightening four screw-assembled lockwashers (12). 4. Install blower motor lead (3) on flame detector switch (4) with new screw-assembled lockwasher (2). 5. Install clamp (6) on ignition control unit (8) with screw (5) and nut-assembled lockwasher (9). I d. Guard Installation Position guard (1) on heater housing (7) and hold in place with two dzus fasteners (10). 17-26