Air Conditioner Condenser Replacement

TM 9-2320-363-34-1 · Chapter 11.1 — Air Conditioning System Maintenance

This task covers:         a. Removal b. Installation

Applicable Configuration:                                   Equipment Condition:

All except M915A2 and M916A1                                Reference              Condition Description

Tools and Special Equipment:                                Page 11.1-2            Refrigerant Recovered

Tool Kit, SC 5180-90-CL-N26                                 General Safety Instructions:
Shop Equipment, SC 4910-95CL-A31
                                                                              WARNING
Materials/Parts:
                                                                  Use care to prevent refrigerant from
Packing, Preformed           P/N 011 C944-70                      touching your skin or eyes, because
Packing, Preformed           P/N 0 1 X944-70                      liquid refrigerant, when exposed to air,
Receiver-Drier               P/IN 088335-00                       quickly evaporates and will freeze skin or
Cap and Plug Set             Appendix B, Item 7.1                 eye tissue. Serious injury or blindness
Loctite                      Appendix B, Item 33                  could result if you come in contact with
Oil, Refrigerant             Appendix B, Item 43.1                liquid refrigerant.
Tags, Identification         Appendix B, Item 55
                                                              l   Refrigerant R-134a air conditioning
References:                                                       systems should not be pressure tested or
                                                                  leak tested with compressed air.
TM 9-2320-363-10                                                  Combustible mixtures of air and R-134a
TM 9-2320-363-20                                                  may form, resulting in a fire or explosion,
                                                                  which could cause personal injury.

                                                 CAUTION
               Water and dirt can damage the refrigerant system. Five minutes of not being
               capped is the limit for any hose or component. Do not blow shop air through the
               refrigerant hoses; shop air is wet (humid).

                                                    NOTE
          Do not disconnect or connect refrigerant fittings using only one wrench. Hold one fitting in
          place using a wrench, and turn the other fitting with a second wrench.

1.        TAG AND DISCONNECT THE REFRIGERANT LINES (1) AT THE CONDENSER (2). INSTALL
          PLUGS IN THE REFRIGERANT LINES AND THE CONDENSER PARTS. DISCARD PREFORMED
          PACKINGS.

TM 92320-363-34-1

2. REMOVE THE FASTENERS ATTACHING THE CONDENSER (2) TO THE RADIATOR, AND REMOVE THE CONDENSER.

1. PLACE THE CONDENSER (2) ON THE RADIATOR. INSTALL AND TIGHTEN THE FASTENERS 108 LB-IN (1220 N.cm).

2. REMOVE THE PLUGS FROM THE REFRIGERANT LINES (1) AND THE CONDENSER (2). INSTALL NEW PREFORMED PACKINGS AND APPLY REFRIGERANT OIL TO THEM. APPLY LOCTITE 242 TO THE MALE FITTING THREADS AND CONNECT THE REFRIGERANT LINES TO THE CONDENSER. USING TWO WRENCHES TO AVOID TWISTING THE TUBING, TIGHTEN THE CONNECTIONS TO THE VALUES IN TABLE D-3, APPENDIX D.

3. REPLACE RECEIVER-DRIER (page 11.1-14).

4. SERVICE AIR CONDITIONER COMPRESSOR (page 11.1-23).

Charge and leak test air conditioning system (page 11.1-2 and TM 9-2320-363-20). Check operation of air conditioning system (TM 9-2320-363-10).