TM 5-3895-373-10SECTION IV. OPERATION UNDER UNUSUAL CONDITIONS2.27 UNUSUALENVIRONMENT/WEATHER.Due to the environmental conditions required for asuccessful paving operation, most of the paving machinehydraulic and electrical functions are not used inunusual environment/weather conditions. Most inclimateconditions that limit the ability to pave eliminate themachine’s use as a paving machine. The pavingmachine can be driven under unusual environment andweather conditions with some precautions detailed in thefollowing paragraphs.2.27.1HotWeatherOperations.The paving machine isequipped with a high temperature warning indicator lightthat turns on when engine coolant temperatures reach214°F (101°C). A high temperature shutdown sensor willstop the engine when coolant temperature reaches220°F (104°C). Coolant temperatures of 214°F (101°C)to 220°F (104°C) usually correspond with an ambient airtemperature of 120°F (49°C) or greater. The pavingmachine can be operated at temperatures above 120°F(49°C) by using the following procedures.NOTEWhen the throttle control switch isset to MAX throttle, maximum coolingis provided to the engine andhydraulic machine functions. Higherengine rpm creates faster circulationof coolant in the engine and hydraulicoil in the hydraulic systems.a. Set throttle control switch (2) to MAX throttle.b. Pull back on left and right control handles (3) toslowest efficient paving speed.c. Turn auger/conveyor speed control valve (4) toslowest possible paving speed setting.d. Turn screed vibration control valve (5) to slowesteffective vibration setting.e. If high temperature warning indicator light comeson, stop paving and offload paving material perparagraph 2.28.1. When ambient airtemperature drops below 120°F (49°C), resumepaving.f. Engine oil must be changed every 50 hourswhen operating the paving machine in extremeheat where engine coolant temperaturesaverage 200°F (93°C) for greater than 50 hoursof machine operation. Refer to UnitMaintenance for oil change.2-97
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