PROCEDURE
ADJUST COMPRESSOR OIL LEVEL
for HFC-134a (R134a):
When replacing the compressor with motor assembly with a new one, gradually discharge the refrigerant gas from the service valve, and drain the following amount of oil from the new compressor with motor assembly before installation.
| Standard |
|---|
| Drain oil from the new compressor assembly, and then add new oil so that the amount of oil in the new compressor assembly is the same as that in the compressor assembly to be replaced. |
Tech Tips
The drain bolt and washer can be reused.
Note
When checking the compressor oil level, observe the precautions on the cooler removal/installation.
If a new compressor is installed without removing some oil remaining in the pipes of the vehicle, the oil amount will be excessive. This prevents heat exchange in the refrigerant cycle and causes refrigeration system failure.
If the volume of oil remaining in the removed compressor is too small, check for oil leaks.
Be sure to use ND-OIL 8 or equivalent for compressor oil.
for HFO-1234yf (R1234yf):
When replacing the compressor with motor assembly with a new one, gradually discharge the refrigerant gas from the service valve, and drain the following amount of oil from the new compressor with motor assembly before installation.
| Standard |
|---|
| Drain oil from the new compressor assembly, and then add new oil so that the amount of oil in the new compressor assembly is the same as that in the compressor assembly to be replaced. |
Tech Tips
The drain bolt and washer can be reused.
Note
When checking the compressor oil level, observe the precautions on the cooler removal/installation.
If a new compressor is installed without removing some oil remaining in the pipes of the vehicle, the oil amount will be excessive. This prevents heat exchange in the refrigerant cycle and causes refrigeration system failure.
If the volume of oil remaining in the removed compressor is too small, check for oil leaks.
Be sure to use ND-OIL 12 or equivalent for compressor oil.
INSTALL COMPRESSOR WITH MAGNET CLUTCH
Install the compressor with magnet clutch with the 3 bolts.
Tech Tips
Tighten the bolts in the order shown in the illustration.
Connect the connector.
CONNECT NO. 1 COOLER REFRIGERANT DISCHARGE HOSE
Remove the attached vinyl tape from the hose.
Apply sufficient compressor oil to a new O-ring and the fitting surface of the compressor with magnet clutch.
| Compressor oil |
|---|
| for HFC-134a (R134a) |
| ND-OIL 8 or equivalent |
| for HFO-1234yf (R1234yf) |
| ND-OIL 12 or equivalent |
Install the O-ring onto the No. 1 cooler refrigerant discharge hose.
Install the No. 1 cooler refrigerant discharge hose onto the compressor with magnet clutch with the bolt.
CONNECT SUCTION HOSE SUB-ASSEMBLY
Remove the attached vinyl tape from the hose.
Apply sufficient compressor oil to a new O-ring and the fitting surface of the compressor with magnet clutch.
| Compressor oil |
|---|
| for HFC-134a (R134a) |
| ND-OIL 8 or equivalent |
| for HFO-1234yf (R1234yf) |
| ND-OIL 12 or equivalent |
Install the O-ring onto the suction hose sub-assembly.
Install the suction hose sub-assembly onto the compressor with magnet clutch with the bolt.
INSTALL FAN AND GENERATOR V BELT
INSTALL BELT GENERATOR COVER
INSTALL GENERATOR COVER
INSTALL AIR CLEANER ASSEMBLY
CHARGE WITH REFRIGERANT
for HFC-134a (R134a):
for HFO-1234yf (R1234yf):
WARM UP ENGINE
for HFC-134a (R134a):
for HFO-1234yf (R1234yf):
INSPECT FOR REFRIGERANT LEAK
for HFC-134a (R134a):
for HFO-1234yf (R1234yf):