TM 9-2320-363-34-1
AIR CONDITIONER COMPRESSOR SERVICE (CONT)
1.
WHEN HANDLING REFRIGERANT OIL:
a.
OIL SHOULD BE FREE OF WATER, DUST, METAL POWDER, AND OTHER FOREIGN
SUBSTANCES.
b.
DO NOT MIX REFRIGERANT OIL WITH OTHER TYPES OR VISCOSITIES OF OIL
C .
QUICKLY SEAL OIL CONTAINER AFTER USE. REFRIGERANT OIL ABSORBS MOISTURE
WHEN EXPOSED TO AIR FOR ANY PERIOD.
2.
AIR CONDITIONING SYSTEM SHOULD HAVE ABOUT 14 fl oz (414 ml) OF REFRIGERANT OIL.
THERE SHOULD BE 10 fl oz (296 ml) IN THE COMPRESSOR.
3.
EACH MAJOR COMPONENT HAS ABOUT 2 fl oz (59 ml) OF REFRIGERANT OIL. THEREFORE,
ADDITIONAL OIL MUST BE ADDED TO THE COMPRESSOR WHEN A MAJOR COMPONENT IS
REPLACED.
EXAMPLE: IF THE CONDENSER AND RECEIVER-DRIER ARE TO BE REPLACED, FIRST
CHECK OIL LEVEL IN COMPRESSOR. COMPRESSOR SHOULD HAVE 10 fl oz (296 ml).
ADD OIL IF NEEDED. THEN, AFTER REPLACING CONDENSER AND RECEIVER-DRIER,
ADD AN ADDITIONAL 4 fl oz (118 ml) OF OIL TO THE COMPRESSOR. THE ENTIRE
SYSTEM SHOULD THEN HAVE ABOUT 14 fl oz (414 ml).
WARNING
Do not remove air conditioner compressor oil fill plug without first recovering the
system. Failure to recover the system could cause uncontrolled release of high-
pressure refrigerant, which can freeze skin and eye tissue causing serious
injury or blindness.
1.
REMOVE OIL FILL PLUG (1) AND PREFORMED PACKING FROM COMPRESSOR (2). RETAIN
PREFORMED PACKING IF NOT DAMAGED. OR IF THERE ARE NO SIGNS OF LEAKS.
2.
USE OIL LEVEL GAGE TO CHECK OIL LEVEL IN COMPRESSOR (2):
a.
IF GAGE BOTTOMS OUT BEFORE GOING IN MORE THAN 3 IN. (7.6 CM), IT IS
HITTING COMPRESSOR CRANKSHAFT. ROTATE DRIVE PLATE BY HAND AND
INSERT GAGE AGAIN UNTIL IT CONTACTS BOTTOM OF SUMP.
b.
USE THE FOLLOWING TABLE TO DETERMINE OIL QUANTITY IN COMPRESSOR
(2).
11.1-24
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