Chapter 3. OPERATOR'S MAINTENANCE INSTRUCTIONS

OPERATOR'S MAINTENANCE INSTRUCTIONS

Section/Paragraph

Lubrication Instructions . . . . . . . . . . . . . . . . . . . . . . ..I

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...II

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-1

Use of Troubleshooting Table . . . . . . . . . . . . ...3-2

Section I.

LUBRICATION INSTRUCTIONS

3-1.

GENERAL

The Model F9000H-3 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 bearings are incorporated in the drive motor and the compressor

crankcase contains a lifetime charge of oil, 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 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.

Section Il.

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 Troubleshooting Table lists the common malfunction symptoms operators are most likely to

encounter during operation of the air conditioner; test and inspection steps to be followed to determine the

cause; and the corrective action that should be taken for each possible cause listed.

b. The operator should first find the malfunction symptom which most closely describes the immediate

situation, and then perform the test and inspection, and corrective action steps in the order in which listed.

c. This manual cannot list all possible malfunction symptoms that may be encountered, nor can it list all

possible test and inspection, and corrective action steps that may be taken. If a malfunction occurs for which

no symptom is listed, or if the listed corrective actions do not resolve the trouble, supervision should be notified.

d. Troubles or corrective actions beyond the scope of operator capabilities must be reported, to

organizational maintenance.