Compressor ASSY
Components Inspection Removal / installation
AIR CONDITIONER
COMPRESSOR ASSY
EXPLODED VIEW
REMOVAL
1. Discharge of refrigerant HFC-134a (R134a) or HFO-1234yf (R1234yf) (Refer to 
)
)2. Disconnection of the battery ground terminal (Refer to )
)3. Removal of air cleaner ASSY W/hose (Refer to )
)4. Removal of alternator cover (Refer to )
)5. Removal of belt alternator cover (Refer to )
)6. Removal of fan & alternator V belt (Refer to )
)
7. Disconnection of suction hose SUB-ASSY
(1) Remove the bolt and disconnect the suction hose SUB-ASSY.
(2) Remove the O-ring from the suction hose SUB-ASSY.
CAUTION:
Wrap vinyl tape around the fitting areas of the disconnected suction hose SUB-ASSY and the compressor ASSY (with magnet clutch) to prevent entry of dirt or moisture.
8. Disconnection of cooler refrigerant discharge hose NO.1
(1) Remove the bolt and disconnect cooler refrigerant discharge hose NO.1.
(2) Remove the O-ring from discharge hose cooler refrigerant discharge hose NO.1.
CAUTION:
Wrap vinyl tape around the fitting areas of disconnected cooler refrigerant discharge hose NO.1 and the compressor ASSY (with magnet clutch) to prevent entry of dirt or moisture.
9. Removal of compressor ASSY (with magnet clutch)
(1) Disconnect the connector.
(2) Remove the 3 bolts and remove the compressor ASSY (with magnet clutch).
INSTALLATION
1. Inspection of compressor oil level
(1) When replacing with a new compressor ASSY (with magnet clutch), release inert gas (helium) gradually from the position shown by the arrow in the figure, and then discharge the oil quantity shown below for installation.
Standard value
: (70 mL of oil in a new compressor ASSY (with magnet clutch)) - (Oil left in the removed compressor ASSY (with magnet clutch)) = (Quantity to be discharged during replacement)
CAUTION:
·To check the compressor oil quantity, strictly observe the cautions for installation/removal.
·The compressor oil remains in the pipe of the vehicle. Therefore, if oil in the new compressor ASSY (with magnet clutch) is not discharged, the oil quantity is increased. It may disturb heat exchange of the refrigerant cycle, resulting in adverse effect such as poor cooling or noise/vibration.
·If the oil quantity in the removed compressor ASSY (with magnet clutch) is small, check for oil leak.
·Use the specified compressor oil only.
·The compressor oil remains in the pipe of the vehicle. Therefore, if oil in the new compressor ASSY (with magnet clutch) is not discharged, the oil quantity is increased. It may disturb heat exchange of the refrigerant cycle, resulting in adverse effect such as poor cooling or noise/vibration.
·If the oil quantity in the removed compressor ASSY (with magnet clutch) is small, check for oil leak.
·Use the specified compressor oil only.
Compressor oil
HFC-134a (R134a)
: ND-OIL8 HFO-1234yf (R1234yf)
: ND-OIL12
: ND-OIL8 HFO-1234yf (R1234yf)
: ND-OIL12
2. Installation of compressor ASSY (with magnet clutch)
(1) Temporarily install the compressor ASSY (with magnet clutch) with the 3 bolts.
(2) Install the compressor ASSY (with magnet clutch) with the 3 bolts in the order shown in the figure.
Standard value:
Standard value:
Tightening torque=36N·m
{
367kgf·cm}
{26.6ft·lbf}
(3) Connect the connector.
3. Connection of cooler refrigerant discharge hose NO.1
(1) Remove the vinyl tape wrapped around the joint of cooler refrigerant discharge hose NO.1.
(2) Apply sufficient compressor oil (ND-OIL8 or ND-OIR12) to the fitting area between new O-rings and the compressor ASSY (with magnet clutch).
(3) Install the O-ring on cooler refrigerant discharge hose NO.1.
CAUTION:
Do not allow the O-ring and the O-ring seal to have deposit of dirt.
(4) Connect cooler refrigerant discharge hose NO.1 to the compressor ASSY (with magnet clutch) with the bolt.
Standard value:
Standard value:
Tightening torque=10N·m
{
102kgf·cm}
{7.4ft·lbf}
4. Connection of suction hose SUB-ASSY
(1) Remove the vinyl tape wrapped around the joint of the suction hose SUB-ASSY.
(2) Apply sufficient compressor oil (ND-OIL8 or ND-OIR12) to the fitting area between new O-rings and the compressor ASSY (with magnet clutch).
(3) Install the O-ring on the suction hose SUB-ASSY.
CAUTION:
Do not allow the O-ring and the O-ring seal to have deposit of dirt.
(4) Connect the suction hose SUB-ASSY to the compressor ASSY (with magnet clutch) with the bolts.
Standard value:
Standard value:
Tightening torque=10N·m
{
102kgf·cm}
{7.4ft·lbf}
5. Installation of fan & alternator V belt (Refer to )
)6. Inspection of fan & alternator V belt (Refer to )
)7. Installation of belt alternator cover (Refer to )
)8. Installation of alternator cover (Refer to )
)9. Installation of air cleaner ASSY W/hose (Refer to )
)10. Connection of the battery ground terminal
Standard value:
Standard value:
Tightening torque=6.0N·m
{
61kgf·cm}
{4.4ft·lbf}
11. Charging refrigerant HFC-134a (R134a) or HFO-1234yf (R1234yf) (Refer to )
)12. Engine warm-up (Refer to )
)13. Inspection of refrigerant gas leak (Refer to )
)14. Settings when removing/installing battery terminals (Refer to )
)UNIT INSPECTION
1. Inspection of compressor ASSY (with magnet clutch)
(1) Inspection of magnet clutch operation
(a) Check the magnet clutch operation when battery voltage is applied to the connector terminal.
Criteria
| Battery connection |
Criteria |
|---|---|
| Battery positive → 1 Battery negative → ground wire |
Operation noise is heard and the magnet clutch hub is locked with the rotor. |
Captions in illustration
| *1 |
Connector of magnet clutch |
| *a |
Connector not connected (Compressor ASSY (with magnet clutch)) |