TM9-4120-401-14
O P E R A T O R ' S MAINTENANCE INSTRUCTIONS
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Section l Lubrication Instructions
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section II Operator Troubleshooting
Use of Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section Ill Maintenance Procedures
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section I LUBRICATION INSTRUCTIONS
The Model F18H-MPI Air Conditioner and its major components are designed so that very little lubrication is
required during serviceable lifetime. The refrigerant compressor and its drive motor are hermetically sealed in
single canister; sealed bearings are incorporated in the drive motor and the compressor is supplied with a
complete charge of oil and requires no Iubrication. Sealed bearings are incorporated in the evaporator and
condenser fan-motors. The only operator lubrication required is that necessary to relieve stiffness or binding of
the louver blades in the evaporator intake and discharge louvers. 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
operational controls to unit maintenance for appropriate action.
Section II OPERATOR TROUBLESHOOTING
3 - 2 . USE OF TROUBLESHOOTING TABLE.
Table 3-1 contains troubleshooting information useful to
operators in
diagnosing and correcting malfunctions or
unsatisfactory operation 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 test/inspection 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.