Section III. OPERATION UNDER UNUSUAL CONDITIONS

Figure 2-21. Operating Instructions, Manually Operated in Parallel (Sheet 3 of 3)

TM-5-6115-593-12 Power Plant Utility (MUST) Gas Turbine Engine Driven (AMERTECH Corp Model APP-1) Manual
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TM 5-6115-593-12 TO 35C2-3-463-1 Section III. OPERATION UNDER UNUSUAL CONDITIONS 2-13. OPERATION IN COLD (40°F to -25°F) (4.4 to - 32°C). a. General. The generator set operates in temperatures down to -25° (-32°C) with the housing kit installed. To operate successfully down to this temperature, the engine is heated by an integrally mounted preheat system which receives auxiliary power from an external source. b. Fuel System. Be sure proper grade of fuel is used for existing temperatures. Service fuel filters and strainers more frequently then normal. Remove ice, snow, and moisture from the filler cap and filler neck. At end of day's operation, drain water from fuel tank and from the fuel filters. c. Engine Electrical System. Clean batteries and cables and inspect for cracked or damaged cases. Be sure the battery terminals are tight, clean and lightly greased. See that the battery cap vent holes are open. The electro-lyte level must be 3/8 inch (9.5 mm) above the plates. See that batteries are kept fully charged. Inspect all electrical wiring for cracks, breaks, and fraying. Tighten loose connections. NOTE After adding water to the batteries in freezing temperatures, operate the battery charger for at least 1 hour. d. Lubrication. Lubricate in accordance with instructions in Chapter 3, Section II. e. Cooling System. Inspect level of coolant in radiator by checking sight glass. Inspect cooling system for leaks, paying particular attention to gaskets and hose connections. Verify that antifreeze mixture is in accordance with table 3-1. 2-14. OPERATION IN EXTREME HEAT (UP TO 125°F) (52°C). a. Keep the cooling system free from rust and scale by changing water filters. Keep cooling system filled with clean coolant. Avoid use of alkaline water or salt water, which causes the accumulation of rust and scale. Inspect belts for proper adjustment. Be sure engine generator set is free of dust and dirt. Check for obstructions in radiator cooling fins and make sure shutter controls are operating properly. b. Lubricate in accordance with the instructions in Chapter 3, Section II. c. Inspect battery electrolyte level daily. The plates should be covered with 3/8 inch (9.5 mm) of water. Add water if necessary. d. Be sure generator set is free of airflow restrictions. When operating indoors, make provisions for adequate ventilation and the venting of exhaust fumes to the outside. e. Keep external surface of engine clean. f. Run generator set at no load, for 5 minutes, to allow the engine to cool prior to shutdown. 2-15. OPERATION IN DUSTY OR SANDY AREAS. a. Housing kit must be installed. b. Where water is available, keep the immediate area wetted down. Keep the unit as clean as possible, paying special attention to screens and grilles. c. Clean filters and strainers more frequently than under normal conditions. Be sure that all lubricant containers are tightly sealed and stored in an area free from dust and sand. d. Take all necessary precautions to 2-46

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