TM-9-2320-365-10 LMTV Operator Manual M1078 Series Download
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TM 9-2320-365-10 2-21. VEHICLE OPERATION (CONT) NOTE • Water Temperature must be a minimum of 100° F (38° C) in order to drive vehicle. Engine will warm up to normal operating temperature of 165° F (74° C) more quickly if engine is under a load condition such as driving. • Vehicle performance, including heater/defroster, will be reduced when engine operating temperature is between 100°F to 165°F (38°C to 74°C). Avoid conditions requiring maximum performance until engine reaches 165° F (74° C). (11) Operate engine at idle (750 rpm) to warm-up engine until WATER TEMP gage (11) reaches a minimum of 100° F (38° C) to begin driving or normal operating temperature of 165° F (74° C). NOTE Perform step (12) in outside temperatures of 32°F to -25°F (0°C to - 32°C), if extreme or unusual conditions exist such as heavy windshield frost or when it is difficult to achieve normal operating temperature of 165° F (74° C). (12) Perform Rapid Engine Warm-Up (para 2-59). (13) Check that WATER TEMP gage (11) reads between 100° F to 230° F (38° C to 110° C). If WATER TEMP gage reads in the red zone or high engine temperature indicator (12) is illuminated, shut down engine (para 2-21f) and perform Engine System Troubleshooting (para 3-3). 2-138 Change 1