Subaru Legacy IV (2008 year). Service manual — part 981
AC-27
Compressor Oil
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
6. Compressor Oil
A: PROCEDURE
NOTE:
Before making repairs, perform the oil return oper-
ation to return the compressor oil in circulation with
the refrigerant to the compressor.
1) Increase the engine to 1,500 rpm.
2) Turn on the A/C switch.
3) Turn the temperature control switch to MAX
COOL.
4) Put in RECIRC position.
5) Turn the blower control switch to HI.
6) Leave in this condition for 10 minutes.
B: REPLACEMENT
NOTE:
• If a component has been replaced, add an ap-
propriate amount of compressor oil (same as the
amount of remaining oil in removed component).
• When replacing the compressor, the new com-
pressor will already have the specified amount of
oil in it. Adjust the oil amount (so that the amount
remains the same as that of the removed compres-
sor) and install the new compressor.
• Since the hygroscopicity of compressor oil is
high, perform this series of works quickly.
AC-28
Blower Motor Unit Assembly
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
7. Blower Motor Unit Assembly
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Remove the glove box. <Ref. to EI-52, REMOV-
AL, Glove Box.>
3) Disconnect the connectors of the A/C control
module, intake door actuator, blower motor, power
transistor and blower resistor.
4) Loosen the bolt and nut to remove blower motor
unit assembly.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
Refer to “COMPONENT” of “General Descrip-
tion”. <Ref. to AC-6, HEATER COOLING
UNIT, COMPONENT, General Description.>
<Ref. to AC-9, BLOWER MOTOR UNIT, COM-
PONENT, General Description.>
AC-00914
AC-29
Blower Motor
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
8. Blower Motor
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Remove the glove box lower cover. <Ref. to EI-
52, REMOVAL, Glove Box.>
3) Disconnect the connector of the blower motor.
4) Loosen the screw to remove the blower motor.
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
Connect the battery positive (+) terminal to terminal
No. 2 of blower motor connector, and negative (–)
terminal to terminal No. 1. Check the blower motor
for smooth rotation.
AC-00957
AC-00915
1
2
AC-30
Power Transistor (Auto A/C Model)
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
9. Power Transistor (Auto A/C
Model)
A: REMOVAL
1) Remove the glove box lower cover. <Ref. to EI-
52, REMOVAL, Glove Box.>
2) Disconnect the power transistor connector.
3) Remove the two screws and remove the power
transistor.
B: INSTALLATION
Install in the reverse order of removal.
AC-00916
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