Air Conditioner Fan Cycling Switch 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:
                                                  Reference              Condition Description
All except M915A2 and M916A1
                                                  TM 9-2320-363-20       Batteries Disconnected
Tools and Special Equipment:
                                                  General Safety Instructions:
Tool Kit, SC 5180-90-CL-N26
Shop Equipment, SC 4910-95-CL-A31
Recovery and Recycling System, 34400                                WARNING
                                                    Use care to prevent refrigerant from touching
Materials/Parts:
                                                    your skin or eyes, because liquid refrigerant,
Packing, Preformed   P/N 011C944-70                 when exposed to air, quickly evaporates and
Oil, Refrigerant     Appendix B, Item 43.1          will freeze skin or eye tissue. Serious injury
                                                    or blindness could result if you come in
References:                                         contact with liquid refrigerant.

TM 9-2320-363-10
TM 9-2320-363-20

1.     DISCONNECT HARNESS CONNECTOR
       (1) FROM FAN CYCLING SWITCH (2).

2.     UNSCREW FAN CYCLING SWITCH (2)
       FROM COUPLING (3) ON RECEIVER-
       DRIER (4). DISCARD PREFORMED
       PACKING.

1. LUBRICATE A NEW PREFORMED PACKING WITH REFRIGERANT OIL AND INSTALL IT OVER MALE THREADS OF COUPLING (1) ON RECEIVER-DRIER (2).

2. SCREW FAN CYCLING SWITCH (3) INTO COUPLING (1) ON RECEIVER-DRIER (2).

3. CONNECT HARNESS CONNECTOR (4) TO FAN CYCLING SWITCH (3).

4. CHECK REFRIGERANT SYSTEM CHARGE AND CHARGE SYSTEM AS REQUIRED (page 11.1-2).