TM 9-2320-361-10 2-59. OPERATION OF SWINGFIRE HEATER (Contd) (7) Raise power receptacle cover (1) and install one end of starter cable (2) in power receptacle (3). Install other end of starter cable (2) in starter cable receptacle (6). (8) Squeeze ignition switch (5) against pump lever (4) and hold there one minute for every 10°F below 0°F, then release. NOTE It maybe necessary to loosen wingnut and open cover slightly so pulsating sounds can be heard more clearly. (9) Move pump lever (4) forward and backward three or four times, then turn fuel regulator knob (8) one to one-and-a-half turns counterclockwise. Continue moving hand lever (4) and adjust fuel regulator knob (8) until pulsating sounds come to equal intervals. (10) When pulsating sounds come to equal intervals, stop moving pump lever (4). (11) Let swingfire heater (9) run three to five minutes. Adjust fuel regulator knob (8) if pulsations are not at equal intervals. (12) Close cover (7) if opened and tighten wingnut (12) by turning clockwise. (13) Remove starter cable (2) from starter cable receptacle (6) and power receptacle (3). Close power receptacle cover (1). (14) Install swingfire heater (9) in mixing pipe (refer to c. of this para.), turboheater (refer to d. of this para.), or water jacket (refer to e. of this para.) as necessary. 2-216