TM 55-4920-217-15
keep equipment clean and to combat corrosion. Treat
82. Operation at High Altitudes
unprotected surfaces of tools and equipment which are
Inspect intake ducts, filters, cooling systems, and
pneumatic equipment at frequent intervals to insure
proper operation at high altitudes. Observe precautions
81. Operation in Extremely Dusty Conditions
manual for the item of equipment.
Inspect machined surfaces, bearings, and lubricated
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