TM 5-2410-241-10
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OPERATION IN EXTREME COLD
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General
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WARN I N G
The heater will heat the cab only to 40F (4C) during arctic conditions. Additional cold
weather gear needs to be worn. Failure to comply may result in serious injury or death.
N OT E
Refer to FM 9-207, Operation and Maintenance of Ordnance Materiel in Cold Weather, FM 31-70, Basic Cold
Weather Manual, and FM 31-71, Northern Operations, for additional information on cold weather operation and
maintenance.
Extreme cold causes many problems that you as an operator must be aware of, such as;
1. Lubricants thicken or congeal.
2. Batteries may freeze or lose their electrical efficiency.
3. Electrical insulation may crack and cause short circuits.
4. Fuel may not readily atomize for combustion.
5. Various materials will become hard, brittle, and easily damaged.
6. The cooling system requires adequate protection from extreme cold.
7. Fuels, lubricants, and antifreeze compounds require special storage, handling, and use.
8. Any water in the fuel/water separator may freeze if not drained.
9. Tracks may be frozen to ground.
Checks
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1. Perform all Before PMCS procedures (WP 0012).
2. Lubricate in accordance with LO 5-2410-241-13.
3. Check to ensure tracks, blade, and ripper (if equipped) are not frozen to ground.
4. Drain a small amount of fuel from the fuel/water separator to ensure fuel is not gelled (WP 0012).
C AU T I O N
If oil is too cold to drip from oil level gauge (dipstick), do not attempt to start engine. Notify
Field Maintenance.
5. Check that engine and transmission oils are thin enough to flow. Oil must be thin enough to drip from oil level
gauge (dipstick).
6. Ensure ether starting aid cylinder is in place and not empty (WP 0015).
Starting Procedures - Machine NOT Equipped with Arctic Kit
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1. Start engine (WP 0005).
2. Check that oil pressure light on instrument panel goes out within 10 seconds of engine starting.
3. Allow engine to idle for at least five minutes before moving machine.
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