35. During conditions of high ambi-ent temperatures (85°F orabove), the coolant temperaturemay exceed 200°. If the cool-ant temperature exceeds 200°F,under these conditions, the oper-ator will reduce vehicle speed todetermine if the high ambienttemperature is causing thehigher engine coolanttemperature.36. If after operating the vehicle atreduced speed the engine coolanttemperature does not decrease,stop the engine, check thecoolant level (page 3-43), andfollow overheatingtroubleshooting procedures(page 3-7). Normally thetemperature won’t go below160°F once the engine warmsup, unless you have to idle inartic temperatures (below -25°F(-32°C)).37. If the coolant temperature dropsto 140°F (60°C), run the engineat 1200-1500 rpm until itwarms up. If the temperaturegage doesn’t work, report it toorganizational maintenance.TM 9-2350-261-1038. Push air ventilator control in toallow cooler air from rearcompartment to enter engine.39. Drive carrier (page 2-176).END OF TASK2-173
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