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Maintenance Manual with Illustrated Parts Catalog

Cessna 182 Skylane · Systems Description

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Overview

This document is a Maintenance Manual with Illustrated Parts Catalog specifically for the Cessna Model 182, detailing the air-conditioning system and its components. It provides maintenance technicians with comprehensive instructions for servicing, troubleshooting, and maintaining the Keith Products air-conditioning system installed in the aircraft. The manual includes system descriptions, operational procedures, troubleshooting charts, and maintenance practices, ensuring that technicians have the necessary information to effectively manage the air-conditioning system. The manual is structured to assist in both routine maintenance and specific repairs, making it a valuable resource for maintaining the aircraft's comfort and operational efficiency.

  • The air-conditioning system uses R134a refrigerant and operates under specific temperature and pressure conditions.
  • Routine maintenance includes checking and replacing components like the expansion valve and ensuring proper refrigerant levels.
  • Troubleshooting charts help diagnose common air-conditioning issues, such as insufficient cooling or high pressure.
  • Safety precautions must be observed when handling refrigerants to prevent injury and ensure compliance with regulations.
  • The manual provides detailed procedures for servicing the air-conditioning system, including discharging and charging processes.

In this document

Introduction

The introduction outlines the purpose and scope of the manual, which is to provide detailed instructions for servicing and maintaining the Cessna Model 182's air-conditioning system. It emphasizes the importance of understanding both overall system operation and component-level details.

Air-Conditioning System Description

The air-conditioning system uses R134a refrigerant and consists of major components such as a compressor, condenser, receiver/drier, expansion valve, and evaporator. The system operates by cycling refrigerant to cool the aircraft cabin, with specific operational temperatures and pressures outlined.

Troubleshooting

This section provides troubleshooting charts for diagnosing issues with the air-conditioning system. It includes common problems, symptoms, and corrective actions, ensuring that technicians can quickly identify and resolve issues.

Maintenance Procedures

Detailed procedures for maintaining the air-conditioning system are provided, including connection procedures, expansion valve replacement, and servicing practices. The manual emphasizes the use of specific tools and lubricants to ensure proper maintenance.

System Servicing

Guidelines for discharging, evacuating, and charging the air-conditioning system are included, with specific instructions on handling R134a refrigerant and ensuring compliance with safety regulations.

Safety notes

  • Do not operate air-conditioning system with condenser air outlet blocked.
  • Always wear safety goggles when servicing the refrigerant system to prevent contact with eyes.
  • Liquid R134a can freeze skin; handle with care.
Full document text

CR-182-10 Maintenance Manual with Illustrated Parts Catalog Record Of Revisions Page ii September 20, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com PREPARED ENGR REVISION RECORD CHECKED OTHER APPROVED ENGR REV CHECKED ENGR CHECKED OTHER APPROVED DATE RELEASED DATE DESCRIPTION OF CHANGES PREPARED ENGR REVISION RECORD CHECKED OTHER APPROVED ENGR REV CHECKED ENGR CHECKED OTHER APPROVED DATE RELEASED DATE DESCRIPTION OF CHANGES PREPARED ENGR REVISION RECORD CHECKED OTHER APPROVED ENGR REV CHECKED ENGR CHECKED OTHER APPROVED DATE RELEASED DATE DESCRIPTION OF CHANGES PREPARED ENGR REVISION RECORD CHECKED OTHER APPROVED ENGR REV CHECKED ENGR CHECKED OTHER APPROVED DATE RELEASED DATE DESCRIPTION OF CHANGES RECORD OF REVISIONS JLP N/A MJR NC N/A JUN 10, 1998 JUN 10, 1998 Original Release – No Changes BCS N/A MAK A N/A NOV 14, 2001 NOV 14, 2001 Added model 182T to document; Revised title pg., WAS FAA PROJECT NO: ST5118SC-2, NOW STC NO: ST09494SC; Revised record of revisions; Revised list of effective pages; Revised doc., WAS polyol ester, NOW polyolester; Revised doc., WAS ES49000-3, NOW ES49000-1 TLW/DMF/ BCS/DRC N/A TD B N/A APR 5, 2002 APR 5, 2002 Rewrote and reorganized entire document. Added IPL. Reason: Project #22010 RCG N/A MAK C N/A SEP 20, 2002 SEP 20, 2002 Added 21-50-01 page 3 and 21-50-06 to List of Effective Pages. Reason: Drafting error per ER1999. Changed P/N of electrical connector; WAS ES53026-2, NOW Reason: Vendor change per ER1985. ES53025-2. CR-182-10 Maintenance Manual with Illustrated Parts Catalog Record Of Revisions Page iii April 2, 2008 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com PREPARED ENGR REVISION RECORD CHECKED OTHER APPROVED ENGR REV CHECKED ENGR CHECKED OTHER APPROVED DATE RELEASED DATE DESCRIPTION OF CHANGES PREPARED ENGR REVISION RECORD CHECKED OTHER APPROVED ENGR REV CHECKED ENGR CHECKED OTHER APPROVED DATE RELEASED DATE DESCRIPTION OF CHANGES PREPARED ENGR REVISION RECORD CHECKED OTHER APPROVED ENGR REV CHECKED ENGR CHECKED OTHER APPROVED DATE RELEASED DATE DESCRIPTION OF CHANGES RECORD OF REVISIONS CDW N/A MAK D N/A N/A MAR 16,2006 MAR 16,2006 Revised I/B’s to section 21-50-06: Pg. 102, & added “Inactive after January 11, 2006.” Added to section 21-50-06: Pg. 103 Revised section 21-50-06: Pg 104, renumber I/N’s 6-17, added I/N 6, 15, 16, 17, & added, “Use 182-0251-1 for spares replacement.” Listed all pages #’s in section 21-50-06 to the List of Effective Pages & Table of Contents Added page vi to List Of Effective Pages. Revised section 21-50-06 Illustrated Parts Catalog pages, was 101 now 1; was 102 now 101; was 103 now 102; was 104 now 103; was 203 now 301; was 204 now Revised Table of Contents page vii, deleted 302. 101-204 & added 1-501. Deleted a page from Table of Contents that contains page #’s 401-507. Revised section 21-50-06 pages 401-403, 182-0700-1 Electrical installation. Revised Table Of Contents & Introduction page #’s Added to section 21-50-06 page 7 to IPC, Electrical, Evaporator, Compressor, Condenser, Plumbing Reason: Product improvement per ER3084 AJ N/A MAK E N/A N/A JAN 3, 2012 JAN 3, 2012 The following was updated on Section 21-50-06: Added following pages: 303, 304, 503, 506, 507, 511-705, and renumbered pages following. Revised following on pg 405: I/N 11 Qty was 5 now Revised following on pg 501: I/N 35 on 4. was Revised following on pg 502: Edited I/N 25 6; added I/N’s 37 & 38 to F/D. Added “For –1 Installation SEE VIEW A-A”, “For –2 Installation SEE VIEW G-G”, “For –2 Installation SEE VIEW E-E”, “For –2 Installation SEE VIEW F-F”. Added “182-0800-2 Plumbing Installation” to title. was Revised following on pg 505: Added I/N 37 & 38 to F/D. Added callouts (-2 ONLY) & (-1 ONLY) (SHOWN) to F/D. 27 Revised following on pg 509: Deleted I/N 6 was ES02121-2 Qty 75; I/N 8 Qty was 20 now 50; I/N 17 Qty was 2 now 1; I/N 18 Qty was 2 now Revised following on pg 510: I/N 29 was JBS6009-2 now JBS6009-9; I/N 35 Qty 1. was ES02126-1 Qty 75 now ES02126-4 Qty 150; I/N 36 Qty was Reason: Drafting error per ER3411 10 now 20. Added I/N’s 37 & 38 to table. HEB N/A MAK F N/A APR 2,2008 APR 2,2008 Updated section 21-50-01 page 3 with revision K of drawing 182-0700-1 Updated section 26-50-06 pages 401-403 with revision k of drawing 182-0700-1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog List of Service Bulletins Page v January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com LIST OF SERVICE BULLETINS DOC NO. DATE SUBJECT REV. DATE INCORP. CR-182-10 Maintenance Manual with Illustrated Parts Catalog List of Effective Pages Page vi January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com LIST OF EFFECTIVE PAGES SECTION PAGE DATE Title i January 11, 2013 List of Revisions ii September 20, 2002 iii April 2, 2008 iv January 11, 2013 List of Service Bulletins v January 3, 2007 List of Effective Pages vi January 11, 2013 vii January 11, 2013 viii October 15 2009 Table of Contents ix October 15, 2009 Introduction x October 15, 2009 xi October 15, 2009 21-50-00 A/C System, System Description 1 April 5, 2002 2 April 5, 2002 3 April 5, 2002 Troubleshooting 101 April 5, 2002 102 April 5, 2002 103 April 5, 2002 104 April 5, 2002 105 April 5, 2002 Maintenance Practices 201 April 5, 2002 202 April 5, 2002 System Servicing 301 April 5, 2002 302 April 5, 2002 303 January 11, 2013 304 January 11, 2013 Inspection 601 April 5, 2002 602 January 11, 2013 603 January 11, 2013 CR-182-10 Maintenance Manual with Illustrated Parts Catalog List of Effective Pages Page vii January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com SECTION PAGE DATE 21-50-01 Electrical Description and Operation 1 January 11, 2013 2 January 11, 2013 3 October 15, 2009 Troubleshooting 101 January 11, 2013 102 January 11, 2013 103 January 11, 2013 104 April 5, 2002 105 January 11, 2013 106 January 11, 2013 107 April 5, 2002 21-50-02 Plumbing Description and Operation 1 April 5, 2002 Maintenance Practices 201 April 5, 2002 21-50-03 Compressor Description and Operation 1 April 5, 2002 Maintenance Practices 201 April 5, 2002 21-50-04 Condenser Description and Operation 1 April 5, 2002 Maintenance Practices 201 April 5, 2002 21-50-05 Evaporator Description and Operation 1 April 5, 2002 Maintenance Practices 201 April 5, 2002 21-50-06 Illustrated Parts Catalog 1 March 16, 2006 101 October 15, 2009 102 October 15, 2009 103 October 15, 2009 201 April 5, 2002 202 January 11, 2013 301 March 16, 2006 302 March 16, 2006 303 January 3, 2007 304 January 3, 2007 401 October 15, 2009 CR-182-10 Maintenance Manual with Illustrated Parts Catalog List of Effective Pages Page viii October 15, 2009 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com SUBJECT PAGE DATE 21-50-06 Illustrated Parts Catalog 402 October 15, 2009 403 October 15, 2009 404 April 5,2002 405 January 3, 2007 501 January 3, 2007 502 January 3, 2007 503 January 3, 2007 504 January 3, 2007 505 January 3, 2007 506 January 3, 2007 507 January 3, 2007 508 January 3, 2007 509 January 3, 2007 510 January 3, 2007 511 January 3, 2007 601 January 3, 2007 602 January 3, 2007 603 January 3, 2007 604 January 3, 2007 605 January 3, 2007 606 January 3, 2007 607 January 3, 2007 701 January 3, 2007 702 January 3, 2007 703 January 3, 2007 704 January 3, 2007 705 January 3, 2007 CR-182-10 Maintenance Manual with Illustrated Parts Catalog Table of Contents Page ix October 15, 2009 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com TABLE OF CONTENTS SUBJECT SECTION PAGE Introduction x Air-conditioning System 21-50-00 Description and Operation 1 Troubleshooting 101 Maintenance Procedures 201 System Servicing 301 Inspection/Checks 601 Electrical 21-50-01 Description and Operation 1 Troubleshooting 101 Plumbing 21-50-02 Description and Operation 1 Maintenance Practices 201 Compressor 21-50-03 Description and Operation 1 Maintenance Practices 201 Condenser 21-50-04 Description and Operation 1 Maintenance Practices 201 Evaporator 21-50-05 Description and Operation 1 Maintenance Practices 201 Illustrated Parts Catalog 21-50-06 1 Evaporator 101 Compressor 201 Condenser 301 Electrical 401 Plumbing 501 Exhaust/Intake 601 Cabin Air Ducting 701 CR-182-10 Maintenance Manual with Illustrated Parts Catalog Introduction Page x October 15, 2009 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com INTRODUCTION PURPOSE The purpose of this System Service Manual is to provide detailed instructions for the servicing, troubleshooting, checking and maintaining of the Cessna Model 182 with Keith Products, L.P. air-conditioning system. The System Service Manual supplements the Maintenance Manual supplied by Cessna for your particular aircraft. SCOPE The scope of the System Service Manual provides the maintenance technician with detailed information covering:- - Overall system level description and theory of operation. - Component level description and theory of operation. - System level checking and troubleshooting procedures. - Procedures for servicing the air-conditioning system refrigerant. - The identification of special equipment to accomplish the specific tasks. CR-182-10 Maintenance Manual with Illustrated Parts Catalog Introduction Page xi October 15, 2009 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com GLOSSARY Nonstandard abbreviations and symbols used in the Maintenance Manual are described below. A/C - Air-conditioning A/R - As Required Assy - Assembly Comm. Avail. - Commercially Available Evap - Evaporator Gnd - Ground GPU - Ground Power Unit SW - Switch VDC - Volts Direct Current CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 1 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com AIR-CONDITIONING SYSTEM SYSTEM DESCRIPTION 1. AIR-CONDITIONING SYSTEM DESCRIPTION The Keith Products vapor cycle air-conditioning system uses liquid refrigerant R134a to cool the aircraft cabin. The major components for the R134a air-conditioning system consist of a compressor, condenser, receiver/drier, expansion valve, and evaporator. The starter ring-gear pulley turns the compressor via a belt. Figure 1 shows an operational schematic of the air-conditioning system. The gas in the suction hose is pumped into the discharge hose and through the refrigerant system by the compressor. The compressor takes the low-temperature, low-pressure gas and compresses it to a high-temperature, high-pressure gas. After the high-temperature, high-pressure gas leaves the compressor it enters the condenser. A 28 VDC blower forces air from the left hand side of the aircraft in the inlet duct and through the condenser. The air exits the condenser and leaves the condenser through the exhaust duct on the right hand side of the tailcone. This air cools the high-temperature, high-pressure gas as much as 100ºF. The gas is cooled until it condenses to a medium-temperature, high-pressure liquid. After the medium-temperature, high-pressure liquid leaves the condenser it enters the receiver/drier. The receiver/drier stores liquid refrigerant and filters any moisture out of the refrigerant. After the medium-temperature, high-pressure liquid leaves the receiver/drier it enters the expansion valve. The expansion valve allows the medium-temperature, high- pressure liquid to expand to a low-temperature, low-pressure spray of liquid. After the low-temperature, low-pressure spray of liquid leaves the expansion valve it enters the evaporator. A 28 VDC blower forces air from the cabin through the evaporator. Since the refrigerant in the evaporator can be as cold as 30ºF, the air from the cockpit causes the low-temperature, low-pressure liquid spray to boil and then evaporate. This low-temperature, low-pressure gas passes through the suction hose into the compressor. The refrigerant cycle continues, cooling the aircraft cabin. Air from the cabin is cooled as it passes through the evaporator and comes into contact with the refrigerant. Since the air is cooled, moisture from the air condenses in the evaporator and liquid water is formed. The water then drains overboard through the floor of the aircraft. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 2 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com Figure 1. Air-conditioning Vapor Cycle System CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 3 April 5, 2012 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 2. SYSTEM OPERATION The air-conditioning system is operated with the engine operating and power supplied to the aircraft electrical system. To operate the system, proceed as follows: A. Turn on air-conditioning system by placing left hand control switch in the AIR COND position. B. For maximum cooling, place the FAN control knob in the HI position, place the CABIN COOLING control knob in the MAX position, and close cabin and baggage doors. C. Turn off air-conditioning system by placing left hand control switch in the OFF position. D. Airflow may be varied infinitely by rotating the FAN control knob between the LO and HI positions. E. Cabin air cooling may be varied by rotating the CABIN COOLING control knob between the MIN and MAX positions. F. Cabin air may be re-circulated without the air-conditioning system operating by placing the left hand control switch in the FAN position. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 101 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com AIR-CONDITIONING SYSTEM TROUBLE SHOOTING 1. GENERAL The procedures below present troubleshooting charts for the air-conditioning system and the compressor. A diagnoses chart is presented for insufficient air-conditioning system cooling. The performance of the air-conditioning system varies with ambient temperature and humidity. The information below presents possible air-conditioning system problems and solutions. CAUTION: Do not operate air-conditioning system with condenser air outlet blocked. 2. AIR-CONDITIONING SYSTEM DIAGNOSIS The following pages show a procedure for diagnosing air-conditioning system problems that will expedite the troubleshooting process. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 102 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com FIGURE 2: AIR-CONDITIONING SYSTEM DIAGNOSIS CHART INSUFFICIENT COOLING SUCTION PRESSURE IS HIGH EXPANSION VALVE IS OPEN EXCESSIVELY. CHECK SENSING BULB INSTALLATION. IF SECURE & WELL INSULATED, THEN REPLACE EXPANSION VALVE. IF NOT, THEN SECURE AND PROPERLY INSULATE AND RETEST. PLUMBING AT RECEIVER/DRIER OUTLET HAS LOW TEMPERATURE. RECEIVER/DRIER IS RESTRICTED. REPLACE RECEIVER/DRIER. BUBBLES IN SIGHT GLASS CHECK REFRIGERATION LINE FOR GAS LEAKS, AND REPAIR LEAKS IF ANY. CHARGE REFRIGERANT TO CORRECT LEVEL. IN CASE OF TOO MANY LEAKS, STOP COMPRESSOR, DISCHARGE THE SYSTEM, EVACUATE AND RECHARGE THE SYSTEM. AS NECESSARY, REPLACE RECEIVER/DRIER. AIR IN SYSTEM MAY CAUSE BUBBLES IN SIGHT GLASS. DISCHARGE PRESSURE IS HIGH CONDENSER AIR TEMP, TOO HIGH SYSTEM PRESSURES ARE ABNORMAL TEMPERATURE OF DISCHARGE AIR IS ABNORMAL, BUT SYSTEM PRESSURE IS NORMAL. OPERATE AIR-CONDITIONING SYSTEM. WITH MANIFOLD GAUGE, CHECK SYSTEM SUCTION AND DISCHARGE PRESSURES. MEASURE TEMPERATURE OF EVAPORATOR AND CONDENSER DISCHARGE AIR. NO BUBBLES IN SIGHT GLASS 1. OVERCHARGE OF REFRIGERANT DISCHARGE SOME OF REFRIGERANT TO CORRECT LEVEL 2. AIR IS MIXED IN. DISCHARGE SYSTEM, AND REPLACE RECEIVER/DRIER. EVACUATE AND RECHARGE SYSTEM 3. CONDENSER’S FINS ARE DENTED OR CLOGGED WITH DUST. CLEAN PER SERVICING INSTRUCTIONS SUCTION PRESSURE IS LOW FINS AND TUBES OF EVAPORATOR HAVE SOME DENTS. REPLACE OR REPAIR EVAPORATOR EXPANSION VALVE IS TOO RESTRICTIVE OR GAS LEAKAGE FROM SENSING ELEMENT. REPLACE EXPANSION VALVE. EVAPORATOR AIR TEMP TOO HIGH CLEAN OR REPLACE CONDENSER CLEAN OR REPLACE EVAPORATOR SUCTION PRESSURE IS HIGH WHILE DISCHARGE IS LOW REPAIR OR REPLACE COMPRESSOR CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 103 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 3. AIR-CONDITIONING SYSTEM TROUBLESHOOTING CONDITION SERVICE PRESSURE GAUGE READING PROBABLE CAUSE CORRECTIVE ACTION INSUFFICIENT REFRIGERANT CHARGE Insufficient cooling. Bubbles appear in sight glass. SUCTION PRESSURE: below normal DISCHARGE PRESSURE: below normal Refrigerant is low, or leaking a little. 1. Leak test. 2. Repair leak. 3. Charge system. Evacuate as necessary and recharge system. ALMOST NO REFRIGERANT No cooling action. A lot of bubbles or something like mist appears in sight glass. SUCTION PRESSURE: much below normal DISCHARGE PRESSURE: much below normal Serious refrigerant leak. Stop compressor immediately. 1. Leak test. 2. Discharge system. 3. Repair Leak(s). 4. Replace receiver/drier, if necessary. 5. Check oil level. 6. Evacuate and recharge system. FAULTY EXPANSION VALVE a) Slight cooling. Sweating or frosted expansion valve outlet. b) Insufficient cooling. Sweated suction line. c) No cooling. Sweating or frosted suction line. a) SUCTION PRESSURE: below normal DISCHARGE PRESSURE: below normal b) SUCTION PRESSURE: above normal DISCHARGE PRESSURE: above normal c) SUCTION PRESSURE: above normal DISCHARGE PRESSURE: below normal a)Expansion valve restricts refrigerant. Or, expansion valve is clogged. Or, expansion valve is inoperative. Or, valve stuck closed. Thermal bulb has lost charge. b)Expansion valve allows too much refrigerant through evaporator. Sensing bulb on suction line not well insulated or properly attached to line. c) Faulty expansion valve. a) Replace expansion valve. b) 1. Check valve for operation. If suction side does not show a pressure decrease, replace valve. 2. Check security and insulation on sensing bulb. c) 1. Discharge system. 2. Replace valve. 3. Evacuate and replace system. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 104 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CONDITION SERVICE PRESSURE GAUGE READING PROBABLE CAUSE CORRECTIVE ACTION AIR IN SYSTEM Insufficient cooling. Sight glass shows occasional bubbles. SUCTION PRESSURE: above normal DISCHARGE PRESSURE: above normal Air mixed with refrigerant in system. 1. Discharge system. 2. Replace receiver/drier. 3. Evacuate and charge system. MOISTURE IN SYSTEM After operation for a while, pressure on suction side may show vacuum pressure reading. During this condition, discharge air will be warm. As warning of this, reading shows approx. 6 psi oscillation. SUCTION PRESSURE: below normal DISCHARGE PRESSURE: above normal Drier is saturated with moisture. Moisture has frozen at expansion valve. Refrigerant flow is restricted. 1. Discharge system. 2. Replace receiver/ drier (twice if necessary). 3. Evacuate system completely. (Repeat 30 minute evacuating three times.) 4. Recharge system. FAULTY CONDENSER Insufficient cooling. Bubbles appear in sight glass of drier. Suction line is very hot. SUCTION PRESSURE: above normal DISCHARGE PRESSURE: above normal Condenser air or refrigerant flow is restricted. Check condenser for dirt accumulation or bent fins. Clean/ replace as necessary. Check for refrigerant overcharge. If pressure remains high in spite of all above actions taken, remove and inspect the condenser for possible oil clogging. HIGH PRESSURE LINE BLOCKED Insufficient cooling. Frosted high pressure liquid line. SUCTION PRESSURE: much below normal DISCHARGE PRESSURE: much above normal Drier clogged, or restriction in high pressure line. 1. Discharge system. 2. Replace receiver/drier. 3. Evacuate and charge system CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 105 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CONDITION SERVICE PRESSURE GAUGE READING PROBABLE CAUSE CORRECTIVE ACTION FAULTY COMPRESSOR a) Insufficient cooling. b) Insufficient cooling. c) Rough running. a) SUCTION PRESSURE: much below normal DISCHARGE PRESSURE: much below normal b) SUCTION PRESSURE: much above normal DISCHARGE PRESSURE: much below normal a) Internal problem in compressor, or damaged gasket and valve. b) Internal problem with compressor body. c) Internal problem with compressor body. 1. Discharge system. 2. Remove and check compressor. 3. Repair or replace compressor. 4. Check oil level. 5. Replace receiver/ drier. 6. Evacuate and charge system. TOO MUCH OIL IN SYSTEM (Excessive) Insufficient cooling. SUCTION PRESSURE: above normal DISCHARGE PRESSURE: above normal Too much oil circulates with refrigerant, causing the cooling capacity of the system to be reduced. Refer to Oil Level Check for correcting oil level. WATER BEING BLOWN OUT OF EVAPORATOR SUCTION PRESSURE: normal DISCHARGE PRESSURE: normal Blocked evaporator drain. Check evaporator drain for downhill routing and repair any kinks or blockage in drain tubing. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 201 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com AIR-CONDITIONING SYSTEM MAINTENANCE PROCEDURES A. GENERAL The following procedures are used to perform typical maintenance on the air- conditioning system plumbing. Procedures are provided for making connections to components, and replacing the expansion valve. Keith Products air-conditioning systems use swaged hose fittings with "o-ring" type connections. B. TOOLS AND EQUIPMENT Designation Ref. No. Qty Remarks Polyolester Oil Comm. Avail. A/R Viscosity ISO 68 Sealant ES49000-1 A/R None C. CONNECTION TO COMPONENTS - O-RING REPLACEMENT 1. Place the appropriate o-ring over the tube "O" end of the fitting. 2. Lubricate o-ring with polyolester oil viscosity ISO 68 or ES49000-1 sealant prior to assembly. 3. Apply sealant to all fitting mating surfaces prior to assembly. D. EXPANSION VALVE REMOVAL AND INSTALLATION The following procedure is used to remove or install the air-conditioning system expansion valve, located on the inlet side of the evaporator coil. 1. Discharge system in accordance with instructions included in this manual. 2. Disconnect and cap the liquid hose from the expansion valve inlet. 3. Remove the insulation covering the thermal sense bulb on the suction tubing. 4. Cut the tie wraps binding the sense bulb to the suction tubing. 5. Disconnect the fitting that connects the expansion valve to the coil, and remove the expansion valve. 6. Discard the old expansion valve and o-ring. 7. Install new ES26104-1 expansion valve and ES49011 –2 o-ring. 8. Lubricate o-ring with polyolester oil viscosity grade ISO 68 or apply ES49000-1 sealant to fitting mating surfaces prior to assembly. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 202 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 9. Install the thermal sense bulb such that it makes contact with the suction tube along its entire length with two or more cable ties as shown in Figure 3. 10. Insulate the bulb thoroughly with insulation to suction tubing. NOTE: Always utilize two wrenches as not to twist or bend the soft copper lines. Figure 3. Correct expansion valve and sense bulb orientation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 301 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com AIR-CONDITIONING SYSTEM SYSTEM SERVICING 1. GENERAL The air-conditioning system uses refrigerant R134a and the compressor lubricating oil used is Polyolester Oil viscosity grade (ISO) 68. No other refrigerant or compressor oil should be used. Refrigerant R134a is non-explosive, non-flammable, non-corrosive, has practically no odor, and is heavier than air. Although R134a is classified as a safe refrigerant, certain precautions must be observed to personnel and property when working with R134a refrigerant. WARNING: A. Liquid R134a, at normal atmospheric pressure and temperature, evaporates so quickly that it tends to freeze anything that it contacts. Care must be taken to prevent any liquid refrigerant from coming into contact with skin. B. Always wear safety goggles when servicing any part of the refrigerant system to prevent refrigerant from coming into contact with the eyes. C. The refrigerant containers and the air-conditioning components are under pressure. Do not expose the air-conditioning system or refrigerant containers to heat. Do not puncture the air-conditioning components or the refrigerant containers. CAUTION: Do not operate air-conditioning system with condenser air outlet blocked. 2. DISCHARGING SYSTEM A. General The air-conditioning system refrigerant must be discharged prior to disconnecting or removing any components in the refrigerant loop. Federal law prohibits discharging refrigerant into the atmosphere. Use only an R134a compatible recycling/recovery unit when discharging the air-conditioning system. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 302 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com B. Tools and equipment Designation Ref. No. Qty Remarks R134a Compatible Recycling/Recovery Unit Comm. Avail. 1 None C. Discharging procedure 1) Connect R134a compatible recycling/recovery unit to the R134a service valves located near the evaporator installation on the right hand side of the aircraft. 2) Empty the recycling/recovery unit of oil. 3) Discharge the air-conditioning system in accordance with the recovery unit's instructions. 4) Empty the oil from the recycling/recovery unit. Note the amount of oil removed during the system discharge. This amount of oil must be added to the air-conditioning system prior to charging. Only use polyolester oil viscosity grade ISO 68. 3. EVACUATING SYSTEM A. General The air-conditioning system must be evacuated prior to charging the system with refrigerant. Evacuating the system removes any moisture and air that may be in the system. Use only an R134a compatible recycling/recovery unit when evacuating the air-conditioning system. B. Tools and Equipment Designation Ref. No. Qty Remarks R134a Compatible Recycling/Recovery Unit Comm. Avail. 1 None CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 303 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com C. Evacuating Procedure 1) Connect R134a compatible recycling/recovery unit to the R134a service valves on the aircraft's air-conditioning system. 2) Empty the oil from the recycling/recovery unit. 3) Evacuate the air-conditioning system in accordance with the recovery unit's instructions for a minimum of 15 minutes. 4) Empty the oil from the recycling/recovery unit. Note the amount of oil removed during the vacuum. This amount of oil must be added to the air- conditioning system prior to charging. Only use polyolester oil viscosity grade ISO 68. 5) Once the air-conditioning system has been evacuated, it is then ready for charging with new/recycled R134a refrigerant. 4. CHARGING SYSTEM A. General Use only R134a refrigerant when charging air-conditioning system. Federal law prohibits discharging refrigerant into the atmosphere. Use only R134a compatible recycling/recovery unit when charging the air-conditioning system. B. Tools and Equipment Designation Ref. No. Qty Remarks R134a Compatible Recycling/Recovery Unit Comm. Avail. 1 None R134a refrigerant Comm. Avail 2.5 lbs. None Polyolester Oil Comm. Avail 5 fl. oz. Viscosity ISO 68 C. Charging Procedure 1) Connect R134a compatible recycling/recovery unit to the R134a service valves on the aircraft's air-conditioning system. If recovery unit does not have pressure gauges, connect service pressure gauges to air-conditioning system. 2) Evacuate the air-conditioning system for 15 minutes in accordance with the instructions in this report. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 304 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 3) Close the low side and open the high side on the recycling/recovery unit. 4) Add polyolester oil viscosity ISO 68 to the high side service tee using the refrigerant recycling/recovery unit while the system is under a vacuum. NOTE: Adding refrigerant or oil from the recycling/recovery unit directly to the low-pressure service tee will allow liquid refrigerant or oil to enter the compressor. The compressor is only designed to compressor gas refrigerant, and liquid refrigerant or oil may damage/destroy the compressor. Always close the low side of the recycling/recovery unit during charging. 5) Charge the air-conditioning system in accordance with the recovery unit's instructions except as noted 6) If bubbles are present at the sight glass after the system has been running for a minimum of 5 minutes, add refrigerant as necessary. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 601 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com AIR-CONDITIONING SYSTEM INSPECTION/CHECKS 1. GENERAL General service procedures are provided to keep the air-conditioning system operating at peak efficiency. Procedures are provided for inspection intervals, refrigerant charge inspection, refrigerant leak inspection, and compressor oil level inspection. CAUTION: Do not operate air-conditioning system with condenser air outlet blocked. A. Tools and Equipment Designation Ref. No. Qty Remarks Service Pressure Gage Comm. Avail. 1 None Electronic Leak Detector Comm. Avail. A/R Type H-10G Polyolester Oil Comm. Avail. A/R Viscosity ISO 68 2. INSPECTION INTERVALS A. General Periodic inspections of the air-conditioning system will keep the system operating at peak efficiency. The inspections are simple visual inspections requiring a minimal amount of time. B. Inspection Intervals *Or every annual inspection, whichever comes first. ITEM INSPECT FOR INTERVAL ACTION AIR-CONDITIONING SYSTEM COMPONENTS DIRT, DAMAGE EVERY 600 HOURS* CLEAN OR REPLACE COMPONENTS AS NECESSARY COMPRESSOR BELT TENSION, WEAR WITHIN 5 HOURS OF INSTALLING A NEW BELT, THEN EVERY 600 HOURS* TENSION OR REPLACE AS NECESSARY SIGHT GLASS PROPER REFRIGERANT LEVEL WHEN PROBLEM IS SUSPECTED* DISCHARGE/CHARGE AS NECESSARY EVAPORATOR AND CONDENSER COILS DIRT EVERY 600 HOURS* CLEAN OR REPLACE AS NECESSARY CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 602 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 3. REFRIGERANT LEVEL INSPECTION To be performed when improper refrigerant charge is suspected. A. Select air-conditioning system switch to AIR COND position. B. Set the cabin temperature knob to the MAX position. C. Set the fan speed knob to the HI position. D. Run system for five (5) minutes minimum. E. Check that the receiver/drier inlet and outlet fitting temperatures are the same. If the outlet is considerably colder, the receiver/drier screen is may be clogged and may need replacement. F. Check the sight glass for bubbles. No bubbles should be visible after 5 minutes of operation. NOTE: The refrigerant bubbles are more difficult to see at ambient temperatures below 65ºF. Always re-check refrigerant level when ambient temperature is above 65ºF for proper level. G. Add/Remove refrigerant as necessary. 4. REFRIGERANT SYSTEM LEAKAGE INSPECTION To be performed when refrigerant leak is suspected. A. The system leakage check is to be performed in an area with an ambient temperature of 65ºF or above. B. Install service pressure gage to low and high pressure R134a service valves. C. On systems that have not been operated for 2 weeks or longer, operate the system for a minimum of 15 minutes. This will lubricate the compressor shaft seal and ensure a more accurate leakage check of the shaft seal. D. With the system off, and using a type H-10G electronic leak detector or equivalent, check all connections, compressor shaft seal, and fabricated components for leakage. No leakage is acceptable. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-00 Page 603 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 5. 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 system component is replaced or when incorrect oil level is suspected. Only polyolester oil viscosity grade ISO 68 should be used. A. Operate air-conditioning system for 10 minutes. This will collect as much oil as possible in the compressor. B. Discharge air-conditioning system in accordance with the discharging instructions in this manual. C. Remove either discharge or suction port hose fitting. D. Remove oil drain plug and allow all oil to drain. E. Add 5 ounces of oil to the compressor. F. Clean oil drain area and install drain plug. Torque to 6 - 9 ft-lbs. G. Install hose fitting. H. Charge air-conditioning system in accordance with the charging instructions in this manual. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 1 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ELECTRICAL DESCRIPTION AND OPERATION 1. GENERAL The electrical system of the Cessna 182 air-conditioning system operates from the main 28 VDC buss. The major components of the electrical system are: Evaporator Blower: Blows cold air into the cabin. Condenser Blower: Removes heat from the refrigerant Compressor Clutch: Engages/disengages the compressor 2. SAFETY FEATURES During certain flight configurations the compressor clutch and condenser blower are disabled to supply electrical power to more critical systems. Depending on the aircraft model and type, automatic load shedding removes power to the compressor clutch and condenser blower when high load systems are engaged. The evaporator blower will remain available to re-circulate cockpit air during all flight configurations. Before electrical current reaches the compressor clutch it passes through the JBS2020-5 Pressure Switch and the JBS60-2 Freeze Switch. In the event of excessive refrigerant pressure during flight (caused by failed or blocked condenser blower) or inadequate refrigerant pressure (caused by a leak in the plumbing) the JBS2020-5 pressure switch will open and disable the compressor clutch. In the event of extremely low temperature air exiting the evaporator (which may cause the coil to freeze) the JBS60-2 Freeze Switch will open and disable the compressor clutch. 3. TEMPERATURE CONTROLLER OPERATION The Cessna 182 air-conditioning system is equipped with a variable temperature control on the pilot’s instrument panel. ES52126-1 thermistors vary in resistance as temperature changes and are placed at the inlet of the evaporator coil. The ES62117-1 Temperature Controller measures the resistance from the thermistors and compares that resistance with the cooling adjustment knob setting. The temperature controller then energizes and de-energizes the ES56128-1 Relay which engages and disengages the compressor clutch. Example: The aircraft operator set the temperature control knob for 70ºF (medium cooling). The temperature controller measures the resistance of the thermistors and determines that the air entering the evaporator is 68ºF. The temperature controller energizes the normally closed relay to remove power to the clutch. Since the compressor is not turning, the air-conditioning is not accomplishing any cooling and the air into the evaporator increases in temperature to 72ºF. The temperature CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 2 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com controller measures the resistance of the thermistors and determines that the air temperature is too high. The temperature controller de-energizes the normally closed relay to send power back to the clutch. The compressor now turns and lowers the air temperature of the cockpit air. This will continue to keep the air at the evaporator inlet temperature at 70ºF. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 3 October 15, 2009 GENERAL ELECTRIC LAYOUT 60 AMP ALTERNATOR CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 101 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ES53025-2 ELECTRICAL CONNECTOR ELECTRICAL TROUBLESHOOTING 1. GENERAL The following procedures are used for troubleshooting the electrical system and the electrical interface with the other assemblies of the air-conditioning system. The procedures systematically check every reasonable cause of the failure, starting from the power source that might result in the inoperation of the evaporator blower, condenser blower, and compressor clutch. If the problem causing the component to fail is suspected, the suspected cause should be checked first. The sequence of checks may be varied to increase the convenience of the checker as desired. If the aircraft is equipped with a 95 amp alternator some of the troubleshooting steps may not apply. A. TOOLS AND EQUIPMENT DESIGNATION REF. NO. QTY. REMARKS Service pressure gauge Comm. Avail 1 None Multi-meter Comm. Avail 1 None 28 VDC source A/R None 2. EVAPORATOR BLOWER DOESN’T OPERATE A. With the engine inoperative turn on the battery power B. Turn the AIR COND/OFF/FAN switch to FAN. C. Set the fan speed to high. D. Disconnect the ES53025-2 Electrical Connector from the blower. E. Check for power at pin 3 and pin 4 of the power side of the connector. Both terminals F. Should have a voltage reading between 26.0V and 29.0V. Use a suitable aircraft ground when checking the power. G. If correct power is present at Pin 3, and Pin 4, and ground is present at Pin 6, the problem lies with the evaporator/blower assembly. H. If power is not present at pin 3 and Pin 4, the problem is due to a failed electrical component, a broken electrical connection, or a broken wire on the power side of the connector. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 102 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 1) Check the 30 Amp fuse (if applicable) for continuity. Replace as necessary 2) Check for power at the Circuit breaker. If power is not present, check the KAC-MBA-10 wire for continuity. Replace/repair as necessary. 3) Check the 20 Amp Circuit Breaker for continuity between the two wire terminals. Check the wire terminals for good connections to the wires. Replace/repair as necessary. 4) Check for power at the AIR COND/OFF/FAN Switch. If power is not present, check the KAC-MMB-16 wire for continuity. Replace/repair as necessary. 5) Check the operation of the AIR COND/OFF/FAN Switch. Check the wire terminals for good connections. Replace/repair as necessary. 6) Check for power at the Fan Speed Potentiometer. If power is not present, replace/repair the connecting wire as necessary. 7) If power is present at the Fan Speed Potentiometer and not at pin 3 of the evaporator blower connector, check the KAC-CCE-16 wire for continuity. Replace/repair as necessary. I. If power is present at pin 3, but is not present at pin 4, the problem is due to a failed electrical component, a broken electrical connection, or a broken wire. 1) Check the Fan Speed Potentiometer for correct operation. Replace or rewire as necessary. 2) Check resistance of the 5KΩ Resistor. Replace as necessary. 3) Check the connections and wires from the Fan Speed Potentiometer to the 5KΩ Resistor and from the 5KΩ Resistor to ground. Replace/repair as necessary. 4) Check for continuity from the wiper of the Fan Speed Potentiometer to the pin 4 of the evaporator blower connector. Replace/repair KAC-SCB-20 wire as necessary. Evaporator Electrical Schematic CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 103 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 3. CONDENSER BLOWER DOESN’T OPERATE A. With the engine inoperative turn on the battery power. B. Turn the AIR COND/OFF/FAN switch to AIR COND. C. Turn the taxi light, prop de-ice and pitot heat off. D. Check for power between the terminals of the EMI filter on the Condenser Blower Assembly. E. If the voltage measured at the EMI filter terminals is between 24.0-29.0 VDC and the blower is not operating, the blower needs to be returned for replacement/repair. F. If no voltage is measured at the EMI filter terminals, the problem is due to a failed electrical component, a broken electrical connection, or a broken wire. 1) Check the 30 Amp fuse for continuity. Replace as necessary 2) Check for power at the Circuit breaker. If power is not present, check the KAC-MBA-10 wire for continuity. Replace/repair as necessary. 3) Check the 20 Amp Circuit Breaker for continuity between the two wire terminals. Check the wire terminals for good connections to the wires. Replace/repair as necessary. 4) Check for power at the ES56052-1 Relay. If power is not present, check the KAC-LSB-16 wire for continuity. Replace/repair as necessary. 5) Check the terminals of the ES56052-1 Relay. If there is no continuity between the KAC-LSB-16 and KAC-LSA-16 (NC and COM) wires, check for power at the relay terminal that connects to wires KAC-LSF-16, KAC-LSE-16, and KAC-LSD-16. There should be no power at this terminal. If there is no power, check the relay for correct wiring and replace if necessary. 6) Check for power at the AIR COND/OFF/FAN Switch. If power is not present, check the KAC-LSA-16 wire for continuity. Replace/repair as necessary. 7) Check the operation of the AIR COND/OFF/FAN Switch. Check the wire terminals for good connections. Replace/repair as necessary. 8) Check for continuity from the AIR COND/OFF/FAN Switch to the positive terminal of the EMI filter. Repair/replace as necessary. 9) Check for continuity from the Negative terminal of the EMI filter to ground. Repair/replace as necessary. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 104 September 20, 2002 Condenser Electrical Schematic 60 Amp Alternator CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 105 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 4. COMPRESSOR CLUTCH DOESN’T ENGAGE NOTE: If the ambient temperature is less than 65ºF the temperature controller may disable the compressor clutch. If the ambient temperature is less than 45ºF the freeze switch may disable the compressor clutch. In order to troubleshoot an inoperative compressor clutch at temperatures between 45ºF and 65ºF, use a short wire as a jumper between Pin 7 and Pin 8 of the ES53026-2 Electrical Connector on the evaporator assembly. This will bypass the temperature probes. A. With the engine inoperative turn on the battery power. B. Turn the AIR COND/OFF/FAN switch to AIR COND. C. Turn the taxi light, prop de-ice, and pitot heat off. D. Turn the cooling control knob to MAX. E. Check the voltage at the positive terminal of the compressor clutch. F. If the voltage measured at the positive terminal of the compressor clutch is between 24.0-29.0 VDC, and the clutch does not engage, (it can be rotated without the compressor pulley rotating) the clutch and coil need to be returned for replacement/repair. G. If no voltage is measured at the positive terminal of the compressor clutch, the problem is due to a failed electrical component, a broken electrical connection, a broken wire, or low temperature measured by the temperature probes. 1) Check the 30 Amp fuse for continuity. Replace as necessary 2) Check for power at the Circuit breaker. If power is not present, check the KAC-MBA-10 wire for continuity. Replace/repair as necessary. 3) Check the 20 Amp Circuit Breaker for continuity between the two wire terminals. Check the wire terminals for good connections to the wires. Replace/repair as necessary. 4) Check for power at the ES56052-1 Relay. If power is not present, check the KAC-LSB-16 wire for continuity. Replace/repair as necessary. 5) Check the terminals of the ES56052-1 Relay. If there is no continuity between the KAC-LSB-16 and KAC-LSA-16 (NC and COM) wires, check for power at the relay terminal that connects to wires KAC-LSF-16, KAC-LSE-16, and KAC-LSD-16. There should be no power at this terminal. If there is no power, and NC to COM is an open circuit, check the relay for correct wiring and replace if necessary. 6) Check for power at the AIR COND/OFF/FAN Switch. If power is not present, check the KAC-LSA-16 wire for continuity. Replace/repair as necessary. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-01 Page 106 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 7) Check the operation of the AIR COND/OFF/FAN Switch. Check the wire terminals for good connections. Replace/repair as necessary. 8) Check for power at the JBS2020-5 Pressure Switch. If power is not present, check the KAC-CCB-16 wire for continuity. Replace/repair as necessary. 9) Check for continuity of the pressure switch. If there is no continuity at the pressure switch, check the refrigerant pressure. If the discharge pressure is between 35 and 340 PSIG, discharge the air-conditioning system and replace the JBS2020-5 Pressure Switch. If the pressure is less than 35 PSIG or greater than 340 PSIG add/remove refrigerant to the proper level. 10) Check for power at the Freeze Switch (Pin 3) on the evaporator assembly. If power is not present, check the KAC-CCA-16 wire for continuity. Replace/repair as necessary. 11) Check for continuity between Pin 3 and Pin 2. If there is no continuity between Pin 3 and Pin 2, and the ambient air temperature is greater than 45ºF, replace the Freeze Switch. 12) Check for power at the ES56128-1 Relay. If power is not present, check the KAC-CCC-16 wire for continuity. Replace/repair as necessary. 13) Check for continuity between Pin 1 and Pin 2 of the relay. If the ambient air temperature is greater than 65ºF and there is no continuity between Pin 1 and 2 continue as follows: a) Check for power at Pin 4. If there is no power at Pin 4, replace the ES56128-1 Relay. b) If there is power at Pin 4, the temperature controller is powering the relay to disengage the clutch. Using a short piece of wire create a short circuit between Pin 7 and Pin 8 on the power side of the evaporator blower connector. c) If the ES56128-1 Relay then disengages, replace the ES52126-1 Temperature Probes. d) If the ES56128-1 does not engage, check the temperature controller for correct wiring and replace the ES62117-1 Temperature Controller as necessary. 14) If there is power at pin 2 of the ES56128-1 Relay, and there is not power at the compressor clutch coil, repair/replace the KAC-CCD-16 wire. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-02 Page 107 September 20, 2002 Compressor Clutch Electrical Schematic 60 Amp Alternator CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-02 Page 1 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com PLUMBING DESCRIPTION AND OPERATION 1. GENERAL The plumbing system consists of flexible nylon lined refrigerant hose with permanent swaged on fittings. All connections are tube o-ring type with sealant on the fitting mating surfaces to ensure leak-free operation. Hose, o-ring material, and sealants are specially designed to work with refrigerant R134a and polyolester oil viscosity grade ISO 68. Two service valves are located on the right side of the aircraft near the evaporator installation. They are sized differently to avoid incorrect connection when servicing the system. A receiver/drier bottle is located downstream of the condenser to remove moisture from the liquid refrigerant. The receiver/drier bottle is mounted in the tailbone of the aircraft. A binary pressure switch monitors the refrigerant gas pressure. This switch will open at a compressor discharge over pressure of 384 ±29 psi and under-pressure conditions of 30 ±5 psi. This will interrupt the power to the compressor clutch and stop the compressor. The second overpressure safety device is a fuse plug, which will vent the system refrigerant in the event of a system pressure in excess of 425 PSIG. The R134a gas would then be sucked into the condenser blower and forced out the exhaust duct on the right side of the aircraft. It is located on the receiver/drier. This section of the maintenance manual discusses maintenance practices used for the plumbing portion of the air-conditioning system. Refer to 182-0800 for parts list and schematics. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-02 Page 1 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com PLUMBING MAINTENANCE PRACTICES 1. GENERAL The following procedures are used to perform typical maintenance on the air- conditioning system plumbing. CAUTION: Do not operate air-conditioning system with condenser air inlet or outlet blocked. A. Connection to components, o-ring replacement: 1) Place the appropriate o-ring (reference 182-0800 drawing) over the tube “O” end of the fitting. 2) Lubricate o-ring with polyolester oil or ES49000-1 sealant prior to assembly. 3) Apply sealant to all fitting-mating surfaces prior to assembly. 4) “Dry” torque recommendations for all fittings are as follows: Liquid hoses 11-13 ft/lbs Discharge hoses 15-20 ft/lbs Suction hoses 21-27 ft/lbs It is recommended to torque to the low side of the torque range to prevent fitting twisting or damage. B. Receiver/drier bottle replacement: 1) Replace receiver/drier bottle whenever the compressor is replaced or when the air-conditioning system plumbing is left open to the atmosphere for a period of time greater than one half (1/2) hour. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-03 Page 1 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com COMPRESSOR DESCRIPTION AND OPERATION 1. GENERAL The compressor is mounted on brackets in the engine compartment and is driven by a belt running to the starter ring-gear pulley. The compressor compresses the refrigerant gas for condensing at ambient temperatures and pumps the refrigerant through the system. The compressor clutch is powered by 28 VDC. This section of the maintenance manual discusses maintenance practices used for the compressor assembly portion of the air-conditioning system. COMPRESSOR INSTALLATION CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-03 Page 201 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com COMPRESSOR MAINTENANCE PRACTICES 1. GENERAL The following procedures are used to perform typical maintenance on the compressor assembly. 2. TOOLS AND EQUIPMENT DESIGNATION REF. NO. QTY. REMARKS Polyolester oil Comm Avail A/R Viscosity ISO 68 3. COMPRESSOR ASSEMBLY MAINTENANCE PROCEDURES A. Compressor drive belt adjustment: 1. Adjust belt for moderate tension and then rotate large pulley through 2 revolutions. 2. Tension belt to deflect 0.25 inch with a 10 lb. force applied at mid-span location. The belt should deflect .5 inches with a 22 lb force applied at the mid-span location. 3. Rotate belt 5 revolutions. Re-tension as required. 4. Cessna alternator belt adjustment procedures should always take precedence over any recommendations here within. B. Compressor oil level check: NOTE: It is not necessary to check the compressor oil level at any time during routine maintenance as long as servicing instructions are properly followed. The compressor comes equipped with 5 oz. of polyolester oil viscosity grade ISO 68. If the amount of oil removed during system discharging and vacuuming is always added before charging, oil never needs to be added to the compressor. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-04 Page 1 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CONDENSER DESCRIPTION AND OPERATION 1. GENERAL The condenser assembly is located in the tailcone and is attached to support structure mounted to frames in the aircraft. The assembly consists of a condenser coil unit and shroud with associated brackets. The condenser converts the refrigerant from a gas to a liquid. The receiver/drier bottle removes moisture from the refrigerant. The condenser fan draws in cool (ambient) air from the intake duct on the left side of the aircraft and blows this air through the condenser coil where the refrigerant gas can be condensed to a liquid. The air is then exhausted overboard through the exhaust duct on the right side of the tailcone. This section of the maintenance manual discusses maintenance practices used for the condenser assembly portion of the air-conditioning system. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-04 Page 201 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CONDENSER MAINTENANCE PRACTICES 1. GENERAL The following procedures are used to perform typical maintenance on the condenser assembly. 2. TOOLS AND EQUIPMENT DESIGNATION REF. NO. QTY. REMARKS Vacuum Cleaner Comm Avail 1 None Coil Cleaner Comm Avail A/R Non-acid based 3. CONDENSER ASSEMBLY MAINTENANCE PROCEDURES A. Condenser coil cleaning procedure: 1. Remove condenser coil from aircraft and 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 (ends capped if not installed). 3. Allow coil to dry thoroughly prior to additional maintenance. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-05 Page 1 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com EVAPORATOR DESCRIPTION AND OPERATION 1. GENERAL The evaporator assemblies are mounted aft of the cabin on the right side of the aircraft. The evaporator assemblies are made up of an evaporator coil, and blower. Cabin air is pulled through the evaporator coil, cooled and then distributed back to the cabin. This section of the maintenance manual discusses maintenance practices used for the evaporator assembly portion of the air-conditioning system. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-05 Page 201 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com EVAPORATOR MAINTENANCE PRACTICES 1. GENERAL The following procedures are used to perform typical maintenance on the evaporator assembly. 2. TOOLS AND EQUIPMENT DESIGNATION REF. NO. QTY. REMARKS Vacuum Cleaner Comm Avail 1 None Coil Cleaner Comm Avail A/R Non-acid based 3. EVAPORATOR ASSEMBLY MAINTENANCE PROCEDURES A. Evaporator coil cleaning procedure: 1. Remove evaporator coil from aircraft and 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 (ends capped if not installed). 3. Allow coil to dry thoroughly prior to additional maintenance. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 1 March 16, 2006 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ILLUSTRATED PARTS CATALOG CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 101 October 15, 2009 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0200-1 Evaporator Installation With 182-0250-1 Evap Assy. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 102 October 15, 2009 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0200-1 Evaporator Installation With 182-0251-1 Evap Assy. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 103 October 15, 2009 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0200-1 Evaporator Installation 2 182-0250-1 182-0251-1 Evaporator Assembly (Alternate Spare 182-0251-1) Evaporator Assembly (Alternate Spare 182-0250-1) 1 3 182-0250-2 Evaporator Cover Assembly 1 4 ES73088-10 Blower Wheel 1 5 ES61060-2 ES61027-10 Motor (182-0250-1 only) Motor (182-0251-1 only) 1 6 172-1250-1 172-1251-1 Bracket (182-0250-1 only) Bracket (182-0251-1 only) 1 7 182-0252-1 Evaporator Coil Assembly 1 8 JBS60-2 Thermostat 1 9 ES26104-1 Expansion Valve 1 10 ES49011-2 O-Ring 1 11 ES53025-2 Receptacle 1 12 ES53027-2 Pin 7 13 ES63015-2 Resistor 1 14 ES58181-79 Transistor 1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 201 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0400-1 Compressor Installation 182-0400-2 Compressor Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 202 January 11, 2013 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0400-1, -2 Compressor Installation 2 JBS4172-1 Compressor Assembly 1 3 ES20172-2 Belt (for configurations without 95 amp alternators) 1 4 182-1400-5 Support Assembly 1 5 182-1400-8 Bracket 1 6 MS20995C20 Spacer Safety Wire A/R 7 172-1400-6 Spacer 1 8 MS28775-228 O-ring 1 9 182-1400-7 Brace 1 10 AN7-44A Bolt 1 11 MS20074-06-11 Bolt 1 12 MS20074-05-11 Bolt 1 13 ES20172-4 Belt (for configurations with 95 amp alternators) 1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 301 March 16, 2006 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0300-1 Condenser Installation 182-0300-2 Condenser Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 301 March 16, 2006 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0300-1,-2 Condenser Installation 2 182-0301-1 Condenser/Fan Assembly (-1 only) 1 3 182-0335-1 Condenser Fan Assembly 1 4 ES30042-10 Clamp 1 5 182-0301-2 Condenser/Fan Assembly (-2 only) 1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 301 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0302-1 Condenser Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 302 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0302-1 Condenser Installation 1 2 182-0303-1 Condenser/Fan Assy. 1 3 ES55074-1 Terminal 1 4 AN525-832R6 Screw 8 5 AN525-832R7 Screw 9 6 AN525-10R6 Screw 2 7 AN525-10R7 Screw 2 8 AN525-10R8 Screw 1 9 AN960-8L Washer 17 10 AN960-10 Washer 1 11 AN960-10L Washer 4 12 MS20365-1032 Nut 5 13 MS21044N08 Nut 17 14 182-1310-1 Aft Support 1 15 182-1309-1 Forward Support 1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 401 October 15, 2009 182-0700-1 Electrical Installation For aircraft equipped with a 60 amp alternator. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 402 October 15, 2009 182-0700-1 Electrical Installation For aircraft equipped with a 95 amp alternator and propeller de-icing system CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 403 October 15, 2009 182-0700-1 Electrical Installation For aircraft equipped with a 95 amp alternator without propeller de-icing. CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 404 April 5, 2002 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 404 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0700-1 Electrical Installation 2 ES57016-5 Switch 1 3 ES62114-1 Rheostat 2 4 MS25041-10 Light, Indicator 1 5 ES50162-1 Lamp 1 6 JBS75-33 Circuit Breaker (20A) 1 7 ES51172-1 Fuse (30A) 1 8 ES55079-1 Splice, Knife Disconnect 3 9 ES53026-2 Plug 1 10 ES53028-2 Socket 7 11 ES58161-15 Diode 4 12 ES56052-1 Relay 1 13 JBS64-13 Fuse (30A) 1 14 ES56128-1 Relay 1 15 ES53001-1 Connector 1 16 ES53003-1 Pin, Female Crimp Type 5 17 ES62117-1 Temp Controller 1 18 JBS7002-12 Panel, Switch 1 19 ES59118-1 Knob 2 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 501 January 3, 2007 182-0800-1 Plumbing Installation 182-0800-2 Plumbing Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 502 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 503 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 504 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 505 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 506 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 507 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 508 January 3, 2007 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 509 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0800-1, -2 Plumbing Installation 2 172-1800-2 Doubler 1 3 182-1800-1 Cover 1 4 AN6289-10D Nut 1 5 AN6289-8D Nut 1 6 DELETED - - 7 ES06022-1 Insulation Tape (IN) 720 8 ES30015-6 Cable Tie 50 9 ES30072-1 Band-It Clamp 4 10 ES40149-1 Fitting 1 11 ES40150-1 Fitting 1 12 ES40150-2 Fitting (Qty for –1 and –2) 2, 1 13 ES40150-3 Fitting (Qty for –1 and –2) 2, 1 14 ES40151-1 Fitting 3 15 ES40158-1 Splicer W/ R134a SV 1 16 ES40158-3 Splicer W/ R134a SV 1 17 ES40159-1 Fitting 1 18 ES40159-2 Fitting 1 19 ES43030-2 Receiver Dryer 1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 510 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 20 ES48004-4 Spiral Wrap (IN) 36 21 ES48149-1 Hose (IN) 145 22 ES48149-2 Hose (IN) 415 23 ES48149-3 Hose (IN) 270 24 ES49011-1 O-Ring 4 25 ES49011-2 O-Ring 5 26 ES49011-3 O-Ring 4 27 JBS10-64 Placard 4 28 JBS2020-5 Pressure Switch Assembly 1 29 JBS6009-9 Fitting, Bulkhead O-Ring 1 30 JBS6009-3 Fitting, Bulkhead O-Ring 1 31 MS28775-211 O-Ring 1 32 MS28775-114 O-Ring 1 33 MS90725-14 Bolt (–1 Only) 1 34 NAS75-4-040 Bushing (–1 Only) 1 35 ES02126-4 Fire Sleeve (IN) 150 36 ES31101DS4-2 Rivet 20 37 ES40151-3 Fitting (Qty for –1 and –2) 1, 2 38 ES40151-2 Fitting (Qty for –1 and –2) 1, 2 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 511 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 39 MS21919WDG20 Clamp (Qty for –1 and –2) 5, 4 40 AN525-10R10 Screw (Qty for –1 and –2) 8, 6 41 MS20365-1032 Nut (Qty for –1 and –2) 8, 9 42 MS21919WDG16 Hose Clamp 4 43 AN525-10R12 Screw (–1 Only) 1 44 AN960-10 Washer (Qty for –1 and –2) 5, 1 45 AN960-10L Washer (Qty for –1 and –2) 5, 8 46 AN525-10R9 Screw (Qty for –1 and –2) 1, 2 47 AN525-10R16 Screw (–2 Only) 1 48 NAS43DD3-15 Spacer (–2 Only) 1 49 182-1400-4 Bracket (Qty for –1 and –2) 2, 1 50 NAS43HT4-24 Spacer (–1 Only) 1 51 AN525-10R7 Screw (–1 Only) 1 52 AN960-416 Washer (–1 Only) 4 53 MS35338-44 Washer (–1 Only) 2 54 ES39251-1 Bolt 1 55 MS21042-3 Nut (–1 Only) 1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 601 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0330-1 Intake / Exhaust Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 602 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0330-2 Intake Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 603 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0330-1 Exhaust Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 604 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0330-1,-2 Intake/Exhaust Installation 2 182-1330-4 Rain Shield (–2 Only) 1 3 182-1330-5 Intake Screen (–2 Only) 1 4 AN525-832R7 Screw 4 5 AN960-8L Washer (Qty for –1 and –2) 8, 4 6 MS21044N08 Nut (Qty for –1 and –2) 8, 4 7 182-0333-1 Exhaust Duct Assy. (–1 Only) 1 8 182-1330-6 Exhaust Screen (–1 Only) 1 9 JBS71-2 Deflector, Exhaust (–1 Only) 1 10 A525-832R9 Screw (–1 Only) 4 CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 605 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0331-1 Intake Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 606 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 607 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0331-1 Intake Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog 21-50-06 Page 608 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0331-1 Intake Installation 2 182-0332-1 Intake Duct Assembly 1 3 182-1330-2 Intercostal 2 4 182-1330-5 Intake Screen 1 5 182-1313-1 Intake Seal 1 6 AN525-832R7 Screw 2 7 AN525-832R8 Screw 4 8 MS35489-6 Grommet 1 CR-182-10 Maintenance Manual with Illustrated Parts Catalog MM-21-50-06 Page 701 January 3, 2007 182-0600-1 Cabin Air Ducting Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog MM-21-50-06 Page 702 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0600-1 Cabin Air Ducting Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog MM-21-50-06 Page 703 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com 182-0600-1 Cabin Air Ducting Installation CR-182-10 Maintenance Manual with Illustrated Parts Catalog MM-21-50-06 Page 704 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 1 182-0600-1 Cabin Air Ducting Installation 2 182-0650-2 Duct Assembly 1 3 182-0650-3 Center Duct Assembly 1 4 182-0650-4 AFT Duct Assembly 1 5 182-0651-1 Air Outlet Assy. L/H 1 6 182-0652-1 Air Outlet Assy. R/H 1 7 ES30042-6 Clamp 2 8 ES70009-2 Flex Duct (IN) 7 9 AN525-832R12 Screw 16 10 AN525-10R10 Screw 4 11 AN525-10R6 Screw 4 12 AN525-832R10 Screw 4 13 ES70009-4 Flex Duct (IN) 240 14 ES30015-1 Cable Tie 13 15 ES30015-2 Cable Tie 4 16 AN743-12 Bracket 1 17 AN525-10R9 Screw 2 18 MS21919WDG24 Clamp 1 19 AN960-10L Washer 2 CR-182-10 Maintenance Manual with Illustrated Parts Catalog MM-21-50-06 Page 705 January 3, 2007 Meggitt (Addison), Inc. 4554 Claire Chennault, Addison TX 75001, USA Tel: +1 (972) 407 1234 Fax: +1 (972) 407 1571 www.meggitt.com ITEM PART NUMBER NOMENCLATURE UNITS PER ASSEMBLY 20 MS20365-1032 Nut 2 21 AN960-D4L Washer 1 22 MS27039-0806 Screw 2 23 MS27039-0810 Screw 4 24 MS35338-42 Lock Washer 6 25 AN960-8L Washer 6 26 ES30015-5 Cable Tie 2 27 MS21266-1N Grommet, Plastic Edge (IN) 12 28 ES30014-2 Tie Mount 1

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