TM 9-2320-285-10
2-17.
OPERATION IN UNUSUAL WEATHER (Continued)
a. Extreme Cold (continued).
(6)
Engine Operation.
(a)
Use ether switch to start the engine (refer to paragraph 2-17(3) above).
(b) Run the engine at reduced speed only long enough to circulate the oil through the engine, then increase
speed to 1000 rpm and warm-up the engine. Low idling speeds during extremely cold temperature can result in
incomplete combustion and heavy deposit formations on the valves.
(c)
Cover the radiator if necessary to bring engine up to operating temperature.
(7)
At Halt or Parking.
(a)
Park vehicle in sheltered place if possible. Cover to protect engine, accessories, and controls from ice
and snow.
(b)
Run vehicle onto planks to prevent tires from freezing to ground.
(c)
Be sure you clean wet snow or mud from tires and cylinders before it freezes.
(d) In extremely cold weather, remove the batteries and store them in a moderately warm area. Reinstall
the batteries just before starting the engine.
b. Extreme Heat.
(1) General. Check temperature gage and lights frequently for indication of overheating. Allow engine to idle
when it is overheated until temperature gage indicates less than 195 degrees Fahrenheit.
(2)
Cooling System.
(a)
Check coolant level at frequent intervals and keep radiator cap tight.
(b)
Be sure that radiator is free of bugs, dust, and other foreign matter.
(c)
Check drive belts tension frequently.
(3) Lubrication. Lubricate the vehicle with correct grade of lubricants in accordance with current lubrication
order. Change filter elements at shorter intervals than normal.
(4)
At Halt or Parking. Park the vehicle in a shaded area if possible.
c. Rainy or Humid Conditions. Keep vehicle protected when not in use. Dry off seat and wiring to prevent formation
of mildew. Keep fuel tank full. Service filters more frequently than normal. Keep all moving parts well lubricated.
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