TM 9-4120-371-14
OPERATOR'S MAINTENANCE INSTRUCTIONS
Section I LUBRICATION INSTRUCTIONS
The Air Conditioner and its major components are designed so that very little lubrication is required during
their serviceable lifetime. The refrigerant compressor and its drive motor are hermetically sealed in a single
The only operator lubrication required is that necessary to relieve stiffness or binding of the louver blades in
the evaporator intake and discharge grilles or the turn button fasteners associated with the fabric cover on the
back of the cabinet. Sparingly apply a light machine oil and work it into the joints or pivots involved. Blot up all
excess oil with a cloth or paper towel. Report stiffness or binding of all other operational controls to
organizational maintenance for appropriate action.