TM 9-2320-361-34 17-3. ENGINE COOLANT HEATER BLOWER MOTOR MAINTENANCE (Contd) I c. Installation 1. Install blower motor (9) on heater housing (13) with four nut-assembled lockwashers (10). 2. Install wire (7) on heater component bracket (14) with screw-assembled lockwasher (8). 3. Install elbows (1) and (5), air tube (4), and ground lead (3) on heater housing (13) with nut- assembled lockwasher (2). 4. Place new tiedown strap (6) around heater wiring. 5. Install guard (12) on heater housing (13) with four screws (11). FOLLOW-ON TASK: Test engine coolant heater (para 17-19). 17-7