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![]() TM 9-2320-363-20-2 
AIR CONDITIONER BINARY SWITCH REPLACEMENT 
This task covers: 
a Removal 
b. Installation 
INITIAL SETUP 
Applicable Configuration: 
General Safety Instructions: 
All except M915A2 and M916A1 
WARNING 
 Use care to prevent refrigerant from 
Tools and Special Equipment: 
touching your skin or eyes, because 
Tool Kit, SC 5180-90-CL-N26 
liquid refrigerant, when exposed to air, 
quickly evaporates and will freeze skin or 
Materials/Parts: 
eye tissue. Serious injury or blindness 
could result if you come in contact with 
Packing, Preformed 
P/N 2-011C944-70 
liquid refrigerant. 
Loctite 
Appendix B, Item 33 
 Refrigerant R-134a air conditioning 
Oil, Refrigerant 
Appendix B, Item 67 
system should not be pressure tested or 
Equipment Condition: 
leak tested with compressed air. 
Combustible mixtures of air and R-134a 
Reference 
Condition Description 
may form, resulting in a fire or explosion, 
which could cause personal injury 
Page 2-29 
Batteries Disconnected 
References: 
TM 9-2320-363-10 
REMOVAL 
1. 
DISCONNECT HARNESS CONNECTOR (1) FROM BINARY SWITCH (2) 
2. 
REMOVE THE BINARY SWITCH (2) FROM RECEIVER-DRIER (3). 
INSTALLATION 
1. 
LUBRICATE NEW O-RING WITH REFRIGERANT 
OIL, THEN INSTALL OVER MALE THREADS OF 
RECEIVER-DRIER COUPLING. 
2. 
INSTALL BINARY SWITCH (2) AND TIGHTEN 
TO 20 TO 25 LB-FT (27 TO 34 N.m). 
3. 
CONNECT HARNESS CONNECTOR (1). 
NOTE 
Follow-on Maintenance: 
Connect batteries (page 2-29). 
Operate air conditioner system (TM 9-2320-363-10). 
Change 3 4-877 
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