Nissan Titan A60. Instruction — part 572
REFRIGERATION SYSTEM
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< SYSTEM DESCRIPTION >
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Component
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A/C Compressor and Condenser
ALIIA0402ZZ
1.
High-pressure service valve
2.
Grommet
3.
High-pressure pipe
4.
Refrigerant pressure sensor
5.
Condenser
6.
Compressor shaft seal
7.
High-pressure flexible hose
8.
Low-pressure flexible hose
9.
Low-pressure service valve
10. Low-pressure pipe
11. Expansion valve
12. Drain hose
HA-18
< SYSTEM DESCRIPTION >
REFRIGERATION SYSTEM
NOTE:
HA-5, "Precaution for Refrigerant Connection"
13. Dryer & liquid tank
14. Liquid tank bracket
15. Junction pipe
Front
OIL
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< SYSTEM DESCRIPTION >
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OIL
Maintenance of Oil Quantity in Compressor
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The oil in the compressor circulates through the system with the refrigerant. Add oil to compressor when
replacing any component or after a large refrigerant leakage has occurred. It is important to maintain the spec-
ified amount.
If oil quantity is not maintained properly, the following malfunctions may result:
• Lack of oil: May lead to a seized compressor
• Excessive oil: Inadequate cooling (thermal exchange interference)
HA-20
< PERIODIC MAINTENANCE >
OIL
PERIODIC MAINTENANCE
OIL
Maintenance of Oil Quantity in Compressor
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CHECKING AND ADJUSTING
CAUTION:
If excessive oil leakage is noted, do not perform the oil return operation.
Start the engine and set the following conditions:
Test Condition
• Engine speed: Idling to 1,200 rpm
• A/C switch: On
• Blower fan speed: MAX position
• Temp. control: Optional [Set so that intake air temperature is 25
° to 30° C (77° to 86°F)]
• Intake position: Recirculation (
)
• Perform oil return operation for about ten minutes
Adjust the oil quantity according to the following table.
Oil Adjusting Procedure for Components Replacement Except Compressor
After replacing any of the following major components, add the correct amount of oil to the system.
Amount of Oil to be Added
• *1: If refrigerant leak is small, no addition of oil is needed.
Oil Adjustment Procedure for Compressor Replacement
Part replaced
Oil to be added to system
Remarks
Amount of oil
m (US fl oz, Imp fl oz)
Evaporator
75 (2.5, 2.6)
—
Condenser
75 (2.5, 2.6)
—
Liquid tank
5 (0.2, 0.2)
Add if compressor is not replaced.
In case of refrigerant leak
30 (1.0, 1.1)
Large leak
—
Small leak *1
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