TM 9--2350--292--10EXTREME HOT WEATHER OPERATION0078 00THIS WORK PACKAGE COVERS:General Information, Operation of Hydraulic System, Vision DevicesINITIAL SETUP:Personnel RequiredThreeReferencesFM 21--11WARNINGVehicle operation in hot weather can increase the risk of heat stress to crew members. Followindividual preventive medicine measures in FM 21--11 to reduce the risk of heat stress inarmored vehicles.GENERAL INFORMATIONThe vehicle may overheat during long, hard towing operations in high gear or when driving at high speed. Checktemperature gauges and warning lights often. Stop vehicle to cool off whenever practical. Keep ventilating bloweron during operation. Inspect the air cleaners and oil coolers often. Clean off dust, insects, or debris from oil cool-ers by brushing off screens or flushing with low pressure water. Have unit maintenance add tropical electrolyte tobatteries.OPERATION OF HYDRAULIC SYSTEMIn hot weather and during continuous operation the hydraulic system may generate more heat than can be removedby the hydraulic oil coolers with an engine speed of 1800 rpm. If the hydraulic reservoir temperature gauge reads160° F or higher, increase the engine speed to 2000 rpm. If the MAX OIL TEMP EXCEEDED indicator comes on(225° F (107°C)), see troubleshooting procedures.VISION DEVICESCheck the periscopes for fungus growth on the lenses and clean if any is present. If paint is chipped, touch up im-mediately to prevent rusting.END OF TASK0078 00--1/2 blank
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