OPERATE IN EXTREME COLD

TM 5-2410-233-10

OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED

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OPERATE IN EXTREME COLD - CONTINUED

Operation.

CAUTION

Low idling speeds during extremely cold temperatures can result in incomplete combustion and heavy

deposit formations on valves. These deposits can cause burned valves, bent pushrods or other damage to

valve components.

Carefully follow engine start and warmup procedures in WP 0005 00. Allow engine time to thoroughly warm up so

that it idles smoothly. However, do NOT allow to idle excessively or at speeds that are too low. Run engine at reduced

speed ONLY long enough to circulate oil through engine, then increase speed.

To avoid water condensation in fuel tank, completely fill fuel tank after each operating period. Also drain water from

fuel tank.

Remove snow, ice and mud from engine compartment, hydraulic cylinders, track components, and implements before

operation.

Ensure tractor and all implements are clean before parking machine. Park in a sheltered area out of the wind. Place

tracks and implements on planking, to keep them from freezing to the ground.

If shelter is not available, park tractor so it does not face into the wind. Cover machine if possible, to protect engine,

accessories and controls from ice and snow.

CAUTION

Do NOT attempt to break tracks loose under engine power. Do NOT move tractor with large frozen lumps

of material in tracks. Failure to follow this caution may cause damage to equipment.

If tracks freeze to the ground, notify Unit Maintenance.

OPERATE IN EXTREME HEAT

CAUTION

Limit engine idling time. Under no condition should idling time exceed a maximum of 10 minutes. Excessive

idling can cause carbon buildup and damage to engine.

NOTE

Refer to FM 90-3, Desert Operations.

During very hot weather, avoid continuous long, hard pushes or pulls. Allow engine to idle if it becomes overheated. If

engine does not cool sufficiently after a maximum of 10 minutes of idling, shut down and notify Unit Maintenance.

If water temperature gage indicates in RED zone or engine coolant temperature warning light comes on, allow engine to

cool down 3-5 minutes at idle. Notify Unit Maintenance if engine does not cool down.

Check cooling system, air cleaner service indicator and engine oil level frequently. Ensure that radiator is free of debris or

foreign matter. Perform necessary services and notify Unit Maintenance of any unusual gage readings or problems.

Clean and lubricate tractor more frequently than indicated in PMCS.

Park tractor under cover or in the shade, if possible.

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