TM 9-4120-378-14
OPERATOR'S MAINTENANCE INSTRUCTIONS
Section I. LUBRICATION INSTRUCTIONS
3.1 FAN AND COMPRESSOR MOTOR LUBRICATION. Motors driving the evaporator fan, condenser fan and
compressor are permanently lubricated. The compressor is a sealed unit complete with lubricant. The rotating parts do
not need any lubrication.
AIR LOUVERS. The evaporator louvers should operate freely. If they bind, lubricate with a small amount of
3.2
lightweight general purpose machine oil.
Section II. OPERATOR TROUBLESHOOTING
3.3 GENERAL.
This section provides information useful in diagnosing and correcting unsatisfactory operation or failure of the
3.3.1
air conditioner. Each malfunction is followed by a list of probable causes and actions to take to remedy the malfunction.
You should perform the tests/inspections and corrective actions in the order listed.
3.3.2 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.
3.4 TROUBLESHOOTING TABLE. See Table 3-1.
