TM 5-4310-452-14
2-19. OPERATION IN EXTREME HEAT AND HIGH HUMIDITY (Con't).
e.
Ensure that cooling fins and cooling fans are kept clean and unobstructed (see paragraph 3-5).
f.
Occasionally drain service air manifold during the shift; drain more often if necessary.
2-20. OPERATION IN EXTREME COLD, SNOW, OR MUD.
a.
General.
(1)
Keep the unit clean and free of snow and mud accumulations.
(2)
Do not allow snow or mud to get inside housing. If it does, clean thoroughly.
(3)
Keep cooling fins and cooling fans clean and unobstructed (see paragraph 3-5).
(4)
Notify your supervisor to have the engine oil drained and refilled when ambient temperature drops below
15°F (-9°C) (see LO 5-4310-452-12).
(5)
In cold weather, use winter-grade fuel to prevent wax build up in the injector lines.
(6)
At temperatures below -20°F (-29°C), the engine must be warmed up before starting operations.
(7)
At temperatures below -4°F (-20°C), notify your supervisor to have the flywheel ring gear lubricated with
low temperature grease (Item 5, Appendix E). This will ensure full engagement of the starter pinion.
b.
Starting in Cold Weather, Below 32°F (0°C).
CAUTION
Use extreme caution when using ether. It is an extremely volatile gas with a combustion
temperature lower than that of vaporized diesel fuel. Too much ether can cause an uncontrolled
explosion and may result in severe damage to engine.
(1)
Disconnect any service air lines.
(2)
Ensure that manual stop handle (1) is completely pushed in.
2-27
