TM 9-2320-363-34-2
AROUND THE EXPANSION VALVE (5).
3.
REMOVE FOUR SCREWS (3) FROM THE
HEATER/AIR CONDlTlONER CORE
COVER (4). REMOVE THE COVER.
4.
REMOVE THE INSULATING TAPE FROM
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.
5.
TAG AND DISCONNECT THE EVAPORATOR COIL LINES (6) FROM THE EXPANSION VALVE
(5). INSTALL PLUGS IN THE LINES AND THE EXPANSION VALVE PORTS. DISCARD
PREFORMED PACKINGS.
6.
REMOVE THE THERMOSTATIC SWITCH AND SENSOR TUBE FROM THE EVAPORATOR COIL
(TM 9-2320-363-20).
WARNING
Failure to wear protective gloves could result in serious skin cuts due to sharp
edges on evaporator coil fins.
7.
WEARING PROTECTIVE GLOVES, SLIDE THE EVAPORATOR COIL UP AND OUT OF THE
HOUSING.
1.
WEARING PROTECTIVE GLOVES, SLIDE THE EVAPORATOR COIL INTO THE HOUSING.
2.
INSERT THE THERMOSTATIC SWITCH AND SENSOR TUBE. THE TIP OF THE SENSOR TUBE
MUST BE IN DIRECT CONTACT WITH A FIN AND BE INSERTED AT LEAST 4 INCHES (10 cm)
INTO THE EVAPORATOR (TM 9-2320-363-20).
3.
REMOVE THE PLUGS FROM THE EVAPORATOR COIL LINES (6) AND THE EXPANSION VALVE
(5). INSTALL NEW PREFORMED PACKINGS WITH REFRIGERANT OIL APPLIED TO THE
PACKINGS AND LOCTITE APPLIED TO THE THREADS OF MALE FITTINGS. CONNECT THE
LINES TO THE EXPANSION VALVE. USING A WRENCH TIGHTEN THE EVAPORATOR COIL
LINES 18 LB-FT (24 N.m). TIGHTEN THE LARGE HOSE TO THE COMPRESSOR 24 LB-FT (33
N.m); AND TIGHTEN THE SMALL HOSE FROM THE RECEIVER-DRIER 12 LB-FT (16 N.m).
Change 1
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