TM 9-2320-363-34-2
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.
3.
TAG
AND
DISCONNECT
THE
REFRIGERANT LINES (3) AND THE
EVAPORATOR COIL INLET AND
O U T L E T L I N E S ( 4 ) F R O M T H E
EXPANSION VALVE (5). INSTALL
PLUGS IN THE REFRIGERANT LINES (3)
AND EVAPORATOR COIL INLET AND
OUTLET
L I N E S ( 4 ) .
DISCARD
PREFORMED PACKINGS.
4.
REMOVE THE EXPANSION VALVE (5).
1.
REMOVE THE PLUGS FROM THE REFRIGERANT LINES (3), THE EVAPORATOR COIL INLET
AND OUTLET LINES (4), AND THE NEW EXPANSION VALVE (5). INSTALL NEW PREFORMED
PACKINGS AND LUBRICATE THEM WITH REFRIGERANT OIL. APPLY LOCTITE 242® TO THE
MALE FITTING THREADS AND CONNECT THE REFRIGERANT LINES (3) AND EVAPORATOR
COIL INLET AND OUTLET LINES (4) TO THE EXPANSION VALVE (5). USING WRENCHES,
TIGHTEN THE EVAPORATOR COIL LINES (4) 18 LB-FT (24 N.m). TIGHTEN THE LARGE HOSE
TO THE COMPRESSOR 24 LB-FT (33 N.m); TIGHTEN THE SMALL HOSE FROM THE RECEIVER-
DRIER 12 LB-FT (16 N.m).
NOTE
Any time air conditioning system refrigerant is evacuated, replace receiver-drier.
2.
REPLACE RECEIVER-DRIER (page 11.1-14).
3.
EVACUATE AND CHARGE THE SYSTEM WITH REFRIGERANT. BE SURE TO ADD
REFRIGERANT OIL TO THE COMPRESSOR TO REPLACE THAT WHICH IS LOST WHEN THE
SYSTEM WAS DISCHARGED (page 11.1-23). LEAK TEST THE SYSTEM (TM 9-2320-363-20).
4.
WIPE THE EXPANSION VALVE (5) AND REFRIGERANT LINE CONNECTIONS (3) CLEAN. WRAP
LINE CONNECTIONS WITH INSULATING TAPE.
5.
WRAP EXPANSION VALVE (5) WITH STRIP CAULK.
6.
INSTALL DASH PANEL (2) AND NINE SCREWS (1).
Change 1
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