Table 4-1. Freezing Points, Composition, and Specific Gravities of Military Antifreeze

Figure 4-5. Location of Fuel Tank Drain Cock

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 Table 4-1. Freezing Points, Composition, and Specific Gravities of Military Antifreeze LOWEST PINTS (LITERS OF ETHYLENE GLYCOL EXPECTED INHIBITED COOLANT SOLUTION AMBIENT GLYCOL PER SPECIFIC GRAVITY TEMPERATURE GALLONS (LITERS) OF COMPOUNT, ANTIFREEZE AT 1 2 680F (200C) OF (0C) COOLANT ARTIC PINTS LITERS +20 (-6.7) 1-1/2 (0.7098) Issued full strength 1.022 +10 (-12.2) 2 (0.9464) and ready mixed for 1.036 0 (-17.8) 2-3/4 (1.3013) 0 to-65°F (-17.8 to 1.047 -10 (-23.3) 3-1/4 (1.5379) -54°C) temperatures 1.055 -20 (-28.9) 3-1/2 (1.6562) for both initial instal- 1.062 -30 (-34.4) 4 (1.8927) lation and replenishment 1.067 -40 (40.0) 4-1/4 (2.0111) of losses .1.073 -50 (-45.6) ARTIC DO NOT DILUTE -60 (-51.1) ANTIFREEZE WITH WATER OR -75 (-59.4) PREFERRED ANY OTHER SUBSTANCE 1. Maximum protection is obtained at 60 percent volume (4.8 pints (2.27 liters)) of ethylene glycol per gallon (3.785 liters) of solution. 2. Military Specification MIL-A-11755 Arctic type, nonvolatile antifreeze compound is intended for use in the cooling system of liquid-cooled internal combustion engines. It is used for protection against freezing primarily in Arctic regions where ambient temperature remains for extended periods close to -40°F (-40°C) or drops below, to as low as -75°F (-59.4°C). 3. Fasten a tag near the radiator filler cap indicating the type antifreeze. 4-7

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