Quantcast Section IV. OPERATION UNDER UNUSUAL CONDITIONS - TM-9-2330-380-14-P0064

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TM 9-2330-380-14&P
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
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ParagraphTitle
Number
General ...........................................................................................................................
Operation in Extreme Cold ...............................................................................................
OperationinExtremeHeatandHighHumidity ....................................................................
Operation in Mud and Snow .............................................................................................
Operation in Dusty or Sandy Areas ...................................................................................
Operation in Salt Water Areas ..........................................................................................
Fording ...........................................................................................................................
Operation With Air Brake Failure (Caging Brakes) .............................................................
2-20. General
a. In addition to the normal preventive maintenance service, special care in cleaning and
lubrication must be observed where extremes of temperature, humidity and terrain conditions
are present or anticipated. Proper cleaning, lubrication and storage and handling of fuels and
lubricants not only ensure proper
operation and functioning, but also guard against excessive wear in the working parts and
deterioration of materials.
b. FM 55-30 contains instructions on driver selection, training and supervision. FM 21-305
prescribes special driving instructions for operating wheeled vehicles under unusual conditions.
A detailed study of these manuals is essential for the use of this material under unusual
conditions.
c. When chronic failure of the materiel results from subjection to extreme conditions, report the
condition on SF Form 368.
2-21. Operation In Extreme Cold
CAUTION
To ensure equipment is not damaged, approved practices and precautions must be followed.
a. Extensive preparation of materiels scheduled for operation in extreme cold weather is necessary.
Generally, extreme cold causes lubricants to thicken or congeal, cracks insulation, causes electrical short
circuits and various construction materials become hard, brittle and easily damaged or broken.
b. The operator must always be on the alert for indications of the effect of the cold weather on the
semitrailer.
c. Use caution when placing the vehicle in motion after a shutdown. Congealed lubricants may cause failure of
parts. Tires frozen to the ground or frozen to the shape of the flat spot while underinflated must be
considered. One or more brake shoes may be frozen fast and require preheating to avoid damage to the
towing vehicle clutch surfaces.



 


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