Section III LUBRICATION - TM-5-4120-393-140075

TM 5-4120-393-14

Section III LUBRICATION

4-15. General. The refrigerant compressor and its drive motor are hermetically sealed in a canister. The compressor

crankcase has a lifetime supply of oil and the drive motor has permanently lubricated, seated bearings The evaporator

and condenser fan motors also have permanently lubricated, sealed bearings. No lubrication of these items is required.

4-16. Mechanical Lubrication. The only mechanical items which may require lubrication are the louvers in the

conditioned air intake and discharge grilles and the devices which operate the fresh air damper door. These points should

be checked and lubricated, as necessary, during preventive maintenance service. A few drops of light oil (Appendix E,

item 14) should be applied to pivot points, bearing surfaces, and linkages to prevent or eliminate stiffness or binding. Be

sure to wipe off all excess oil with a cloth or paper towel. These items are in areas of high volume air flow and excess oil

will tend to attract and accumulate dust particles from the passing air.

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