AirComm Corporation Cessna Citation 500 501 Maintenance Manual
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Page 21
Products, Inc
Maintenance Manual
21-50-02
May 15/95
Page 201
MAINTENANCE PRACTICES
1. GENERAL
The following procedures are used to perform typical maintenance on the air
conditioning system plumbing.
2. TOOLS AND EQUIPMENT
Designation
Ref. No.
Qty
Remarks
R134a Compatible Hose Swaging
Kit
Available from
Keith Products
1
None
Sharp Knife
Comm. Avail.
1
None
Impact Wrench
Comm. Avail.
1
None
Polyol Ester Oil
Comm. Avail.
A/R...
Page 22
Products, Inc
Maintenance Manual
21-50-02
May 15/95
Page 202
B. Connection to Components - O-Ring Replacement
1. Place the appropriate o-ring (REF. IPL Fig. 1) over the tube O end of the
fitting.
2. Lubricate o-ring with polyol ester oil or sealant prior to assembly.
3. Apply sealant to all fitting mating surfaces prior to assembly.
C. Receiver/Drier Replacement
1. Replace receiver/drier whenever the compressor is replaced or when the air
conditioning system plumbing...
Page 23
Products, Inc Maintenance Manual 21-50-02 May 15/95 Page 601 INSPECTION/CHECK 1. GENERAL The following procedures are used for checking and inspecting the air conditioning system plumbing. 2. TOOLS AND EQUIPMENT Designation Ref. No. Qty Remarks Electronic R134a Refrigerant Leak Detector Comm. Avail. 1 None 3. PLUMBING CHECK PROCEDURES (REF. IPL Fig. 1) A Plumbing Installation Preventive Maintenance Check NOTE: All O-rings should be...
Page 24
Products, Inc Maintenance Manual 21-50-02 May 15/95 Page 1001 Figure 1. Plumbing System
Page 25
Products, Inc Maintenance Manual 21-50-02 May 15/95 Page 1002 FIG. ITEM PART NUMBER NOMENCLATURE EFFECT UNITS PER ASSY 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 - - - - 82-75-106-3 88-00-431-2 ES48012-2 ES49008-1 MS28775-114 85-75-105 JBS5005-2 ES48149-3 ES41061-1 ES48149-1 ES49011-1 ES49011-3 ES40149-3 ES41061-2 ES40151-1 ES40149-3 ES40151-3 JBS6009-1 ES49016-1 JBS10-64 ES40158-3...
Page 26
Products, Inc Maintenance Manual 21-50-03 May 15/95 Page 1 COMPRESSOR/CONDENSER ASSEMBLY DESCRIPTION AND OPERATION 1. GENERAL The compressor/condenser assembly is located forward of the rear baggage door. This unit consists of a drive motor, compressor, condenser fan assembly, condenser coil, and pressure switch. The drive motor via a multi V flat belt, turns the compressor which compresses the refrigerant gas at which it will condense at ambient temperatures. This gas is...
Page 27
Products, Inc Maintenance Manual 21-50-03 May 15/95 Page 101 TROUBLESHOOTING 1. GENERAL The following procedures are used for troubleshooting the comp/cond assembly. 2. TOOLS AND EQUIPMENT Designation Ref. No. Qty Remarks Service Pressure Gauge Comm. Avail. 1 None 28vdc Source A/R None 3. COMP/COND TROUBLESHOOTING PROCEDURES (REF. IPL Fig. 1) With the air conditioning system operating, do any of the following conditions occur: NOTE: Always...
Page 28
Products, Inc Maintenance Manual 21-50-03 May 15/95 Page 102 Trouble Probable Cause Correction 5. Low air flow across condenser coil. Dirty condenser coil. Clean condenser coil.
Page 29
Products, Inc Maintenance Manual 21-50-03 May 15/95 Page 202 MAINTENANCE PRACTICES 1. GENERAL The following procedures are used to perform typical maintenance on the compressor/condenser assembly. 2. TOOLS AND EQUIPMENT Designation Ref. No. Qty Remarks Feeler Gage Comm. Avail. 1 None Oil Dipstick Make from metal wire. 1 See Fig. 201. Coil Cleaner Comm. Avail. A/R Non Acid Based Polyol Ester Oil Comm. Avail. A/R Viscosity Grade 68...
Page 30
Products, Inc Maintenance Manual 21-50-03 May 15/95 Page 203 C. Condenser Coil Cleaning Procedure 1. Use vacuum cleaner to remove large debris from upstream and downstream coil faces. 2. Spray coil cleaner on both coil faces. Wash off with water. 3. Allow condenser coil to dry thoroughly prior to additional maintenance. D. Compressor Oil Level Check NOTE: It is not necessary to check the compressor oil level during routine maintenance. It only needs to be checked when a...