TM 9-4120-403-14
CHAPTER 3
OPERATOR'S MAINTENANCE INSTRUCTIONS
Section I LUBRICATION INSTRUCTIONS
3-1. GENERAL
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 container; sealed
The only operator lubrication required is that necessary to relieve stiffness or bindings 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 Unit Maintenance for appropriate
action.
Section II OPERATOR'S TROUBLESHOOTING PROCEDURES
3-2. USE OF TABLE
Table 3-1 contains troubleshooting instruction designed to be
useful in
diagnosing and correcting unsatisfactory operation
or failure of the air conditioner.
a.
The table lists the common malfunctions which you may find during the operation or maintenance of the
air conditioner or its components. You should perform the tests/inspections and corrective actions in the order listed.
b.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective
actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
c.
Report any trouble or corrective action beyond the scope of operator maintenance to your supervisor and
Unit Maintenance.
3-1