Operation CHARM: Car repair manuals for everyone.

Maintenance Of Oil Quantity





OIL

Maintenance of Oil Quantity

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 specified 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)

OIL
- Oil type: NISSAN A/C System Oil Type S or equivalent

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
Temperature control: Optional [Set so that intake air temperature is 25� to 30�C (77� to 86�F).]






- Perform oil return operation for about ten minutes