Section II. Operation of Auxiliary Equipment

TM 5-6115-590-12 Figure 2-16(1). Operation to Deliver Heated Air (Sheet 1 of 3). (TS 6115-590-12/2-161¹) Section II. Operation of Auxiliary Equipment 2-13. General The power plant is equipped with a 2 3/4 pound dry charge fire extinguisher, bracket mounted on the remote power connection panel (fig. 2-9). The extinguisher, charged with purple K dry chemical, is suitable for all type fires. A squeeze of the trigger breaks the seal disc in the top of the pressurized dry chemical shell and starts the discharge. When trigger is released, discharge stops, permitting intermittent discharge. Once seal disc is broken, valve will hold pressure in shell only for a few hours. After using, replace with a new shell immediately. 2-14. Use of Fire Extinguisher a. To use the fire extinguisher, point the nozzle at the base of the flame and squeeze trigger. Apply chemical until all signs of fire have been extinguished. b. Recharging. Recharge immediately after using. Squeeze trigger to vent pressure. Unscrew and discard used shell. Remove dry chemical remaining in head. Insert new indicator tab into trigger. Screw new shell firmly into head. Insert new indicator tab into control head. c. Maintenance. Semiannually, unscrew shell from head. Be sure trigger works freely and nozzle is clean. Follow maintenance instructions on shell. Insert new indicator into trigger. Screw shell firmly into head. Insert new indicator into control head. Section III. Operation Under Unusual Conditions 2-15. Operation in Extreme Cold a. The power plant will operate satisfactorily at ambient temperatures as low as -25°F. However, special precautions should be observed for the water system and the batteries. Operating fuel should be used that is compatible to low temperatures [para. 1-7b (2) (a)] and precautions should be taken to prevent accumulation of moisture in the fuel supply. Change 6 2-22