Subaru XT 1988 Service Manual page 1042

•
4-7 AIR CONDITIONING SYSTEM
OIL CHARGE TABLE
Condition Proper charging method
Amount of oil to be added
m£ (US fl
OZ,
Imp fl oz)
Remove all oil from new compressor
*
Replacement of compressor and charge it with amount of oil shown 70 (2.4, 2.5)
in right column.
Replacement of evaporator
Add amount of oil shown in right
70 (2.4, 2.5)
column.
Replacement of receiver drier
Oil need not be added. -
(I iqu id tank)
There is no sign of oil
Oil need not be added. -
Replacement
leakage from condenser.
of condenser
There is evidence of a
Add amount of oil shown in right
large amount of oil
column.
50 (1.7, 1.8)
leakage from condenser.
There is no sign of oil
Oil need not be added.
-
Replacement
leakage.
of flexible
hose or
There is evidence of a
Add amount of oil shown in right
copper tube
large amount of oil
column.
50 (1.7, 1.8)
leakage.
There is no sign of oil
Oil need not be added.
-
leakage.
Gas leakage
There is evidence of a
large amount of oi I
Add amount of oil shown in right
50 (1.7, 1.8)
leakage.
column.
*
Remove compressor oil as follows: - Example-
1. With the compressor upside down, completely drain the
oil through the suction port (cast-out letter
"s"
mark side).
Be sure to use a clean container to receive the oil.
When replacing the evaporator and compressor, drain all oil
out of the new compressor and then charge the compressor
with the total amount of 140 m£ (4.7 US fl
OZ,
4.9 Imp fl ozl
oil [70 m£ (2.4 US fl
OZ,
2.5 Imp fl
OZ)
for the evaporator and
70 m£ (2.4 US fl oz, 2.5 Imp fl ozl for compressorl.
2. When the oil stops flowing out, rotate the clutch hub (com-
pressor shaft) two or three times to completely drain the
oil.
When replacing two or more of the parts indicated in the
above chart, follow each instruction under the proper charging
method column for the proper amount of oil to be added.
CAUTION:
a. The oil should not be transfused from a container into
another, as the failure will possibly cause moisture to mix with
the oil.
b. The used oil should not be returned into a container.
20
c. The oil should not be used if its state of preservation is not
clear enough.,
If compressor is inoperative due to defective compressor or
heavy loss of refrigerant, exchange the compressor through the
procedure from 2 to 5.